Self-adaptive 10KV segmented spare power automatic switching control method and device thereof

Abstract

The invention discloses a self-adaptive 10KV segmented spare power automatic switching control method and device, and relates to the technical field of power system automation, and the method comprises the steps: calculating the main transformer power comprehensive values of a first main transformer and a second main transformer; main transformer overload setting values of the first main transformer and the second main transformer are obtained respectively; comparing the first main transformer overload setting value with the second main transformer overload setting value to obtain a first comparison result, and comparing the main transformer power comprehensive value with the first main transformer overload setting value and the second main transformer overload setting value to obtain a second comparison result; and constructing a discharge strategy of the 10KV segmented spare power automatic switching mode I and the 10KV segmented spare power automatic switching mode II based on a comparison result, and controlling the 10KV segmented spare power automatic switching device. According to the invention, the technical problem of low efficiency caused by the fact that a dispatcher needs to manually judge the input condition when the 10KV segmented spare power automatic switching device is controlled in the prior art is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of power system automation, and in particular to an adaptive 10KV segmented standby automatic switching control method and a device thereof. Background Art

[0002] In the power system, the main transformer is a device that connects the high-voltage power grid and the low-voltage power grid. During its operation, it may be overloaded due to factors such as load changes, voltage fluctuations, and short-circuit faults. Overload can cause the transformer to overheat or even be damaged, resulting in power outages. Therefore, it is necessary to take corresponding protective measures when the main transformer is overloaded to prevent overload from damaging the main transformer. Among them, the automatic backup technology is an important protection measure. By automatically switching on the backup power supply, the power supply load can be transferred when the main transformer is overloaded, reducing damage to the main transformer. The 10KV segmented automatic backup is used in the 10KV power system. When the 10V bus loses voltage, the backup power supply is switched on to restore the bus power supply in time.

[0003] The automatic backup technology has been widely used in power systems. However, the current automatic backup technology has the following problems: First, there is no clear setting value for the charging and discharging conditions of the automatic backup mode. In actual operation, the function is prone to frequent switching on and off, which reduces the stability of the automatic backup technology. Second, in the case of overload, the overload power of the main transformer may change in a short time, resulting in the inability of the automatic backup technology to accurately judge the overload situation, reducing the reliability of the automatic backup technology.

[0004] In the related technology, in order to prevent the main transformer from overloading after the 10KV sectioned standby automatic transfer is actuated, the dispatcher needs to manually switch on and off the soft pressure plate of the standby automatic transfer function according to the load conditions of the main transformer. The control efficiency is low, and the accuracy of the judgment results based on manual judgment is difficult to guarantee.

[0005] To address the above-mentioned problems, no effective solution has been proposed yet. Summary of the invention

[0006] The embodiment of the present invention provides an adaptive 10KV segmented standby automatic switching control method and device thereof, so as to at least solve the technical problem in the related art that when controlling the 10KV segmented standby automatic switching device, the dispatcher needs to manually judge the switching conditions, which results in low efficiency.

[0007] According to one aspect of an embodiment of the present invention, an adaptive 10KV segmented standby automatic control method is provided, comprising: collecting voltage data and current data of a first main transformer and a phase difference between the voltage data and the current data to obtain first voltage data, first current data and a first phase difference, and collecting voltage data and current data of a second main transformer and a phase difference between the voltage data and the current data to obtain second voltage data, second current data and a second phase difference, wherein the first main transformer and the second main transformer are two main transformers that serve as backup for each other; calculating the first main transformer power of the first main transformer based on the first voltage data, the first current data and the first phase difference, and calculating the second main transformer power of the second main transformer based on the second voltage data, the second current data and the second phase difference, and obtaining a main transformer power comprehensive value based on the first main transformer power and the second main transformer power; obtaining the first main transformer power; obtaining the first main transformer power. The first main transformer overload setting value of the transformer and the second main transformer overload setting value of the second main transformer are compared to obtain a first comparison result, and the main transformer power comprehensive value is compared with the first main transformer overload setting value and the second main transformer overload setting value respectively to obtain a second comparison result; based on the first comparison result and the second comparison result, a discharge strategy of a 10KV segmented standby automatic transfer mode 1 and a 10KV segmented standby automatic transfer mode 2 is constructed, and the 10KV segmented standby automatic transfer device is controlled based on the discharge strategy, wherein the 10KV segmented standby automatic transfer mode 1 indicates that when the low-voltage side bus of the second main transformer loses pressure, the first main transformer is switched to supply power, and the 10KV segmented standby automatic transfer mode 2 indicates that when the low-voltage side bus of the first main transformer loses pressure, the second main transformer is switched to supply power.

[0008] Optionally, the step of constructing the discharge strategy of 10KV segmented standby automatic transfer mode 1 and 10KV segmented standby automatic transfer mode 2 based on the first comparison result and the second comparison result includes: when the first comparison result indicates that the overload setting value of the first main transformer is equal to the overload setting value of the second main transformer, and the second comparison result indicates that the comprehensive power value of the main transformer is greater than any one of the overload setting value of the first main transformer and the overload setting value of the second main transformer, determining the discharge of 10KV standby automatic transfer mode 1 and the discharge of 10KV standby automatic transfer mode 2; constructing the discharge strategy based on the discharge of the 10KV standby automatic transfer mode 1 and the discharge of the 10KV standby automatic transfer mode 2, and discharging the 10KV segmented standby automatic transfer device in mode 1 and mode 2 based on the discharge strategy.

[0009] Optionally, the step of constructing a discharge strategy for 10KV segmented standby automatic transfer mode 1 and 10KV segmented standby automatic transfer mode 2 based on the first comparison result and the second comparison result includes: when the first comparison result indicates that the overload setting value of the first main transformer is greater than the overload setting value of the second main transformer, and the second comparison result indicates that the comprehensive power value of the main transformer is greater than the overload setting value of the first main transformer and the overload setting value of the second main transformer, determining the 10KV standby automatic transfer mode 1 discharge and the 10KV standby automatic transfer mode 2 discharge; constructing the discharge strategy based on the 10KV standby automatic transfer mode 1 discharge and the 10KV standby automatic transfer mode 2 discharge, and discharging the 10KV segmented standby automatic transfer device in mode 1 and mode 2 based on the discharge strategy.

[0010] Optionally, the step of constructing a discharge strategy for 10KV segmented standby automatic transfer mode 1 and 10KV segmented standby automatic transfer mode 2 based on the first comparison result and the second comparison result includes: when the first comparison result indicates that the overload setting value of the first main transformer is greater than the overload setting value of the second main transformer, and the second comparison result indicates that the comprehensive power value of the main transformer is greater than the overload setting value of the second main transformer and the comprehensive power value of the main transformer is less than the overload setting value of the first main transformer, determining that 10KV standby automatic transfer mode 1 is charged and 10KV standby automatic transfer mode 2 is discharged; constructing the discharge strategy based on the 10KV standby automatic transfer mode 1 charging and the 10KV standby automatic transfer mode 2 discharging, and based on the discharge strategy, performing mode 1 charging and mode 2 discharging on the 10KV segmented standby automatic transfer device.

[0011] Optionally, the step of constructing a discharge strategy for 10KV segmented standby automatic transfer mode 1 and 10KV segmented standby automatic transfer mode 2 based on the first comparison result and the second comparison result includes: when the first comparison result indicates that the overload setting value of the first main transformer is less than the overload setting value of the second main transformer, and the second comparison result indicates that the comprehensive power value of the main transformer is greater than the overload setting value of the first main transformer and the overload setting value of the second main transformer, determining the 10KV standby automatic transfer mode 1 discharge and the 10KV standby automatic transfer mode 2 discharge; constructing the discharge strategy based on the 10KV standby automatic transfer mode 1 discharge and the 10KV standby automatic transfer mode 2 discharge, and discharging the 10KV segmented standby automatic transfer device in mode 1 and mode 2 based on the discharge strategy.

[0012] Optionally, the step of constructing a discharge strategy for 10KV segmented standby automatic transfer mode 1 and 10KV segmented standby automatic transfer mode 2 based on the first comparison result and the second comparison result includes: when the first comparison result indicates that the overload setting value of the first main transformer is less than the overload setting value of the second main transformer, and the second comparison result indicates that the comprehensive power value of the main transformer is greater than the overload setting value of the first main transformer and the comprehensive power value of the main transformer is less than the overload setting value of the second main transformer, determining that 10KV standby automatic transfer mode 1 is discharged and 10KV standby automatic transfer mode 2 is charged; constructing the discharge strategy based on the 10KV standby automatic transfer mode 1 discharge and the 10KV standby automatic transfer mode 2 charging, and based on the discharge strategy, performing mode 1 discharge and mode 2 charging on the 10KV segmented standby automatic transfer device.

[0013] Optionally, the charging conditions of the 10KV segmented standby automatic start-up device include at least: the hard pressure plate of the 10KV segmented standby automatic start-up device is put into operation, the soft pressure plate of the 10KV segmented standby automatic start-up device is put into operation, the low-voltage side bus of the first main transformer is under pressure, the low-voltage side bus of the second main transformer is under pressure, the first circuit breaker and the second circuit breaker are closed and the third circuit breaker is open, wherein the first circuit breaker represents the circuit breaker connected to the first main transformer, the second circuit breaker represents the circuit breaker connected to the second main transformer, and the third circuit breaker represents the circuit breaker on the low-voltage side bus.

[0014] Optionally, the action logic of the 10KV segmented standby automatic switching mode 1 is: the second circuit breaker is opened after a first time delay, and the third circuit breaker is closed after a second time delay.

[0015] Optionally, the action logic of the 10KV segmented standby automatic switching mode 2 is: the first circuit breaker is opened after a first time delay, and the third circuit breaker is closed after a second time delay.

[0016] According to another aspect of an embodiment of the present invention, there is also provided an adaptive 10KV segmented standby automatic control device, comprising: a collection unit, used to collect voltage data and current data of a first main transformer and a phase difference between the voltage data and the current data, to obtain first voltage data, first current data and a first phase difference, and to collect voltage data and current data of a second main transformer and a phase difference between the voltage data and the current data, to obtain second voltage data, second current data and a second phase difference, wherein the first main transformer and the second main transformer are two main transformers that serve as backup for each other; a calculation unit, used to calculate the first main transformer power of the first main transformer based on the first voltage data, the first current data and the first phase difference, and to calculate the second main transformer power of the second main transformer based on the second voltage data, the second current data and the second phase difference, and to obtain a main transformer power comprehensive value based on the first main transformer power and the second main transformer power; an acquisition unit, used to acquire the a first main transformer overload setting value of the first main transformer and a second main transformer overload setting value of the second main transformer; a comparison unit, used to compare the first main transformer overload setting value and the second main transformer overload setting value to obtain a first comparison result, and compare the main transformer power comprehensive value with the first main transformer overload setting value and the second main transformer overload setting value respectively to obtain a second comparison result; a control unit, used to construct a discharge strategy of a 10KV segmented standby automatic transfer mode 1 and a 10KV segmented standby automatic transfer mode 2 based on the first comparison result and the second comparison result, and control the 10KV segmented standby automatic transfer device based on the discharge strategy, wherein the 10KV segmented standby automatic transfer mode 1 indicates that the low-voltage side bus of the second main transformer loses pressure, and the first main transformer is switched to supply power, and the 10KV segmented standby automatic transfer mode 2 indicates that the low-voltage side bus of the first main transformer loses pressure, and the second main transformer is switched to supply power.

[0017] Optionally, the control unit includes: a first determination module, used to determine the 10KV standby automatic transfer mode one discharge and the 10KV standby automatic transfer mode two discharge when the first comparison result indicates that the first main transformer overload setting value is equal to the second main transformer overload setting value, and the second comparison result indicates that the main transformer power comprehensive value is greater than any one of the first main transformer overload setting value and the second main transformer overload setting value; a first construction module, used to construct the discharge strategy based on the 10KV standby automatic transfer mode one discharge and the 10KV standby automatic transfer mode two discharge, and based on the discharge strategy, discharge the 10KV segmented standby automatic transfer device in mode one and mode two.

[0018] Optionally, the control unit also includes: a second determination module, used to determine the 10KV standby automatic transfer mode one discharge and the 10KV standby automatic transfer mode two discharge when the first comparison result indicates that the first main transformer overload setting value is greater than the second main transformer overload setting value, and the second comparison result indicates that the main transformer power comprehensive value is greater than the first main transformer overload setting value and the second main transformer overload setting value; a second construction module, used to construct the discharge strategy based on the 10KV standby automatic transfer mode one discharge and the 10KV standby automatic transfer mode two discharge, and based on the discharge strategy, discharge the 10KV segmented standby automatic transfer device in mode one and mode two.

[0019] Optionally, the control unit also includes: a third determination module, used to determine the 10KV standby automatic transfer mode one charging and the 10KV standby automatic transfer mode two discharging when the first comparison result indicates that the overload setting value of the first main transformer is greater than the overload setting value of the second main transformer, and the second comparison result indicates that the main transformer power comprehensive value is greater than the second main transformer overload setting value and the main transformer power comprehensive value is less than the first main transformer overload setting value; a third construction module, used to construct the discharge strategy based on the 10KV standby automatic transfer mode one charging and the 10KV standby automatic transfer mode two discharging, and based on the discharge strategy, perform mode one charging and mode two discharging on the 10KV segmented standby automatic transfer device.

[0020] Optionally, the control unit also includes: a fourth determination module, used to determine the 10KV standby automatic transfer mode one discharge and the 10KV standby automatic transfer mode two discharge when the first comparison result indicates that the first main transformer overload setting value is less than the second main transformer overload setting value, and the second comparison result indicates that the main transformer power comprehensive value is greater than the first main transformer overload setting value and the second main transformer overload setting value; a fourth construction module, used to construct the discharge strategy based on the 10KV standby automatic transfer mode one discharge and the 10KV standby automatic transfer mode two discharge, and based on the discharge strategy, discharge the 10KV segmented standby automatic transfer device in mode one and mode two.

[0021] Optionally, the control unit also includes: a fifth determination module, used to determine the 10KV standby automatic transfer mode 1 discharge and the 10KV standby automatic transfer mode 2 charging when the first comparison result indicates that the overload setting value of the first main transformer is less than the overload setting value of the second main transformer, and the second comparison result indicates that the main transformer power comprehensive value is greater than the first main transformer overload setting value and the main transformer power comprehensive value is less than the second main transformer overload setting value; a fifth construction module, used to construct the discharge strategy based on the 10KV standby automatic transfer mode 1 discharge and the 10KV standby automatic transfer mode 2 charging, and based on the discharge strategy, perform mode 1 discharge and mode 2 charging on the 10KV segmented standby automatic transfer device.

[0022] Optionally, the charging conditions of the 10KV segmented standby automatic start-up device include at least: the hard pressure plate of the 10KV segmented standby automatic start-up device is put into operation, the soft pressure plate of the 10KV segmented standby automatic start-up device is put into operation, the low-voltage side bus of the first main transformer is under pressure, the low-voltage side bus of the second main transformer is under pressure, the first circuit breaker and the second circuit breaker are closed and the third circuit breaker is open, wherein the first circuit breaker represents the circuit breaker connected to the first main transformer, the second circuit breaker represents the circuit breaker connected to the second main transformer, and the third circuit breaker represents the circuit breaker on the low-voltage side bus.

[0023] Optionally, the action logic of the 10KV segmented standby automatic switching mode 1 is: the second circuit breaker is opened after a first time delay, and the third circuit breaker is closed after a second time delay.

[0024] Optionally, the action logic of the 10KV segmented standby automatic switching mode 2 is: the first circuit breaker is opened after a first time delay, and the third circuit breaker is closed after a second time delay.

[0025] In the present application, the following steps are performed: first, the voltage data and current data of the first main transformer and the phase difference between the voltage data and the current data are collected to obtain the first voltage data, the first current data and the first phase difference, and the voltage data and current data of the second main transformer and the phase difference between the voltage data and the current data are collected to obtain the second voltage data, the second current data and the second phase difference, wherein the first main transformer and the second main transformer are two main transformers that serve as backup for each other, and the first main transformer power of the first main transformer is calculated based on the first voltage data, the first current data and the first phase difference, and the second main transformer power of the second main transformer is calculated based on the second voltage data, the second current data and the second phase difference, and the main transformer power comprehensive value is obtained based on the first main transformer power and the second main transformer power, and then the first main transformer power of the first main transformer is obtained. The overload setting value of the transformer and the overload setting value of the second main transformer of the second main transformer are determined, and the overload setting value of the first main transformer and the overload setting value of the second main transformer are compared to obtain a first comparison result, and the comprehensive value of the main transformer power is compared with the overload setting value of the first main transformer and the overload setting value of the second main transformer respectively to obtain a second comparison result, and finally, based on the first comparison result and the second comparison result, the discharge strategy of the 10KV segmented standby automatic transfer mode 1 and the 10KV segmented standby automatic transfer mode 2 is constructed, and the 10KV segmented standby automatic transfer device is controlled based on the discharge strategy, wherein, when the 10KV segmented standby automatic transfer mode 1 indicates that the low-voltage side bus of the second main transformer loses pressure, the first main transformer is switched to supply power, and when the 10KV segmented standby automatic transfer mode 2 indicates that the low-voltage side bus of the first main transformer loses pressure, the second main transformer is switched to supply power.

[0026] In this application, for two main transformers that are mutually standby, the power sum of the two main transformers is calculated to obtain the comprehensive value of the main transformer power, and the main transformer overload setting value is configured for each main transformer in advance. The main transformer overload value comparison result and the main transformer power comprehensive value of the main transformer and the main transformer overload setting value comparison result are used to determine the overload condition of the main transformer, thereby constructing a discharge strategy for the 10KV segmented standby automatic throw device to avoid the overload of the main transformer, and to respond to the power change of the main transformer more quickly, and to adjust the standby automatic throw function in time, thereby avoiding the extension of the power supply interruption time caused by the judgment and operation delay of the dispatcher, and improving the control efficiency of the 10KV standby automatic throw. At the same time, by accurately calculating the comprehensive value of the main transformer power and comparing the overload setting value, the accuracy of the standby automatic throw function switching is improved, the possibility of malfunction is reduced, and the stable operation of the power system is ensured. This solves the technical problem in the related art that when controlling the 10KV segmented standby automatic throw device, it is necessary to manually judge the input conditions by the dispatcher, and there is a low efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0028] Figure 1 It is a flow chart of an optional adaptive 10KV segmented standby automatic switching control method according to an embodiment of the present invention;

[0029] Figure 2 is an optional primary wiring diagram of a power system according to an embodiment of the present invention;

[0030] Figure 3 It is a schematic diagram of an optional adaptive 10KV segmented standby automatic switching control process according to an embodiment of the present invention;

[0031] Figure 4 It is a schematic diagram of an optional adaptive 10KV segmented standby automatic switching control device according to an embodiment of the present invention;

[0032] Figure 5 The hardware structure block diagram of an electronic device (or mobile device) of an adaptive 10KV segmented standby automatic switching control method according to an embodiment of the present invention. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0034] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0035] It should be noted that the adaptive 10KV segmented standby automatic control method and device in the present application can be used in the field of power system automation technology when the 10KV segmented standby automatic control device is controlled based on the main transformer power data, and can also be used in any field except the field of power system automation technology when the 10KV segmented standby automatic control device is controlled based on the main transformer power data. The application does not limit the application field of the adaptive 10KV segmented standby automatic control method and device.

[0036] The following embodiments of the present invention can be applied to various adaptive 10KV segmented standby automatic switching control systems / applications / equipment. The present invention provides a solution for the automatic switching on and off of the 10kV segmented standby automatic switching function. By real-time acquisition and calculation of the real-time power of the operating main transformer, when the combined power value of the two main stations is greater than the main station overload setting value, the corresponding standby automatic switching mode can be automatically exited; when the power sum of the two main stations is less than the main transformer overload setting value, the corresponding standby automatic switching mode can be automatically switched on, thereby realizing the automatic switching on and off of the standby automatic switching function, improving the control efficiency and accuracy of the 10kV segmented standby automatic switching, and ensuring the safe and stable operation of the power system.

[0037] The present invention is described in detail below in conjunction with various embodiments.

[0038] Embodiment 1

[0039] According to an embodiment of the present invention, an embodiment of an adaptive 10KV segmented standby automatic re-closing control method is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0040] Figure 1 FIG. 1 is a flow chart of an optional adaptive 10KV segmented standby automatic switching control method according to an embodiment of the present invention. Figure 1 As shown, the method comprises the following steps:

[0041] Step S101, collect the voltage data and current data of the first main transformer and the phase difference between the voltage data and the current data to obtain first voltage data, first current data and a first phase difference, and collect the voltage data and current data of the second main transformer and the phase difference between the voltage data and the current data to obtain second voltage data, second current data and a second phase difference.

[0042] It should be noted that during the operation of the power system, due to multiple factors such as equipment aging or environmental impact, the power system bus may lose pressure or power outages. In this case, a segmented backup automatic switch is introduced into the power system, that is, the backup power supply is automatically switched on. When the power equipment bus loses pressure or the power is interrupted in the power distribution network of the power system, the backup power supply is switched on to restore the abnormal situation of the power equipment in time. Especially for medium and low voltage distribution networks with voltage levels of 10kV and below, the backup automatic switch device can effectively improve the reliability and continuity of power supply, reduce power outages caused by faults, protect power equipment from overload damage, and ensure the safe and stable operation of the power system.

[0043] It should be noted that in the power system, the segmented standby automatic switching technology often configures two or more adjacent main transformers as a mutual backup power supply to improve the reliability of power supply and the stability of the system. When one of the main transformers cannot work normally due to maintenance, failure or overload, the other main transformer can bear the additional load to ensure continuous power supply to users. In the working environment of the 10KV segmented standby automatic switching device, the embodiment of the present invention uses two adjacent main transformers as a mutual backup power supply, collects and calculates the real-time power of the operating main transformer in real time, and can automatically exit the corresponding standby automatic switching mode when the power sum of the two main stations is greater than the main station overload setting; when the power sum of the two main stations is less than the main transformer overload setting, it can automatically enter the corresponding standby automatic switching mode, thereby realizing the automatic switching on and off of the standby automatic switching function, ensuring the safe and stable operation of the power system.

[0044] It should be noted that when the 10KV standby automatic switching device is automatically switched on and off, the voltage data and current data of the first main transformer and the second main transformer and the phase difference between the voltage and the current are collected in real time to calculate the active power value of the first main transformer and the second main transformer. The active power value of the main transformer can effectively reflect the load condition of the main transformer. The above-mentioned first main transformer and the second main transformer are two main transformers that serve as backup for each other. The first main transformer and the second main transformer are respectively deployed in two power subsystems, and the two power subsystems are connected through a circuit breaker. Under normal circumstances, the circuit breaker between the two power subsystems is in a split state, so that the two power subsystems are independent of each other and supply power to different loads. If the busbar of one of the power subsystems loses voltage, the circuit breaker between the power subsystems is closed, and the backup power supply is used to supply power to the abnormal power subsystem, thereby ensuring the normal operation of the power system and minimizing the power outage time.

[0045] Step S102, calculate the first main transformer power of the first main transformer based on the first voltage data, the first current data and the first phase difference, and calculate the second main transformer power of the second main transformer based on the second voltage data, the second current data and the second phase difference, and obtain the main transformer power comprehensive value based on the first main transformer power and the second main transformer power.

[0046] It should be noted that the purpose of the backup automatic switching function is to automatically switch to the backup power supply when the main power supply fails to maintain the continuity of power supply. However, during the switching process, if the load of the backup power supply suddenly increases, the main transformer serving as the backup power supply not only needs to supply power to the original load, but also needs to supply power to the load corresponding to the main transformer serving as the main power supply, which may cause the main transformer serving as the backup power supply to be overloaded. The embodiment of the present invention calculates the power sum of the two main transformers and then obtains the comprehensive power value of the main transformer, so as to monitor the load conditions of the first main transformer and the power system where the main transformer is located in real time, and ensures that when the backup automatic switching action is executed, the power system will not cause any main transformer to be overloaded due to a sudden increase in load, thereby avoiding equipment damage and power grid failure.

[0047] Specifically, the first main transformer power of the first main transformer is calculated based on the first voltage data, the second voltage data and the first phase difference collected in real time, and the second main transformer power of the second main transformer is calculated based on the second voltage data, the second current data and the second phase difference, and the sum of the first main transformer power and the second main transformer power is calculated to obtain the comprehensive value of the main transformer powers of the two main transformers.

[0048] Step S103, obtaining a first main transformer overload setting value of the first main transformer and a second main transformer overload setting value of the second main transformer.

[0049] It should be noted that the embodiment of the present invention pre-configures the main transformer overload setting value for the first main transformer and the second main transformer, respectively, to obtain the first main transformer overload setting value and the second main transformer overload setting value. The main transformer overload setting value is set according to the design capacity, operating conditions and safety requirements of the transformer, and is used to determine whether the transformer is in an overload state. When the load power of the transformer exceeds this threshold, the system should take measures to prevent further overload, such as automatically exiting the standby automatic transfer function, and the main transformer overload setting value will be adjusted and updated according to changes in the operating conditions of the main transformer (such as ambient temperature, operating years, etc.).

[0050] Step S104, comparing the first main transformer overload setting value with the second main transformer overload setting value to obtain a first comparison result, and comparing the main transformer power comprehensive value with the first main transformer overload setting value and the second main transformer overload setting value respectively to obtain a second comparison result.

[0051] It should be noted that, in order to prevent the commissioning of the 10KV standby automatic transfer device from causing an overload of a certain main transformer, the embodiment of the present invention first compares the main transformer overload setting values ​​of the first main transformer and the second main transformer to obtain a first comparison result, and then compares the main transformer power comprehensive value with the first main transformer overload setting value of the first main transformer and the second main transformer overload setting value of the second main transformer, respectively, to obtain a second comparison result, and determines the control mode of the 10KV standby automatic transfer device according to the first comparison result and the second comparison result. Under normal circumstances, the 10KV segmented standby automatic transfer device performs mode one charging and mode two charging and is in a ready state so as to automatically execute mode one action or mode two action when the power system is abnormal. Based on the control method of the embodiment of the present invention, when the main transformer power comprehensive value of the main transformer indicates that switching the backup power supply will cause the main transformer to overload, the 10KV segmented standby automatic transfer device is discharged, so that the 10KV standby automatic transfer device automatically exits the standby automatic transfer function soft pressure plate to avoid overload of the main transformer.

[0052] Step S105, constructing the discharge strategies of 10KV sectional standby automatic transfer mode 1 and 10KV sectional standby automatic transfer mode 2 based on the first comparison result and the second comparison result, and controlling the 10KV sectional standby automatic transfer device based on the discharge strategies.

[0053] It should be noted that the discharge of the 10KV segmented standby automatic transfer device is divided into 10KV segmented standby automatic transfer mode 1 discharge and 10KV segmented standby automatic transfer mode 2 discharge. The discharge strategy of the 10KV segmented standby automatic transfer device is constructed according to the first comparison result and the second comparison result, so as to adjust the state of the 10KV segmented standby automatic transfer device according to the discharge strategy, and realize the adaptive control of the 10KV segmented standby automatic transfer. This dynamic adjustment mechanism can quickly respond to changes in grid load, avoid overload of the main transformer, protect equipment safety, and extend the service life of the equipment. During the peak load period of the power system, such as high temperature in summer and severe cold in winter, this method can effectively cope with the sudden increase in load and ensure the stable operation of the power grid.

[0054] Optionally, the action logic of the 10KV sectional standby automatic switching mode 1 is: the second circuit breaker is opened after a first time delay, and the third circuit breaker is closed after a second time delay.

[0055] Optionally, the action logic of the second 10KV segmented standby automatic switching mode is: the first circuit breaker is opened after a first time delay, and the third circuit breaker is closed after a second time delay.

[0056] It should be noted that the above-mentioned first circuit breaker represents the circuit breaker connected to the first main transformer, the second circuit breaker represents the circuit breaker connected to the second main transformer, and the third circuit breaker represents the circuit breaker on the low-voltage side bus. The third circuit breaker is a circuit breaker located on the low-voltage side bus corresponding to the first main transformer and the second main transformer. Under normal circumstances, the first circuit breaker is in a split state, thereby isolating the first main transformer and the second main transformer, so that the two transformers are in two independent power subsystems.

[0057] It should be noted that when the 10KV segmented standby automatic switching mode indicates that the low-voltage side bus of the second main transformer loses voltage, the first main transformer is switched to supply power. The specific actions performed by the 10KV segmented standby automatic switching mode are: after a first time delay, the second circuit breaker is opened to disconnect the power supply of the second main transformer to the load, and after a second time delay, the third circuit breaker is closed to switch the first main transformer to supply power to the load.

[0058] When the 10KV segmented standby automatic switching mode 2 indicates that the low-voltage side bus of the first main transformer loses voltage, the second main transformer is switched to supply power. The specific actions performed by the 10KV segmented standby automatic switching mode 2 are: after a first time delay, the first circuit breaker is opened to disconnect the power supply of the first main transformer to the load, and after a second time delay, the third circuit breaker is closed to switch the second main transformer to supply power to the load.

[0059] Optionally, the step of constructing a discharge strategy for 10KV segmented standby automatic transfer mode 1 and 10KV segmented standby automatic transfer mode 2 based on the first comparison result and the second comparison result includes: when the first comparison result indicates that the overload setting value of the first main transformer is equal to the overload setting value of the second main transformer, and the second comparison result indicates that the comprehensive power value of the main transformer is greater than any one of the overload setting value of the first main transformer and the overload setting value of the second main transformer, determining the discharge of 10KV standby automatic transfer mode 1 and the discharge of 10KV standby automatic transfer mode 2; constructing a discharge strategy based on the discharge of 10KV standby automatic transfer mode 1 and the discharge of 10KV standby automatic transfer mode 2, and discharging the 10KV segmented standby automatic transfer device in mode 1 and mode 2 based on the discharge strategy.

[0060] It should be noted that, if the first comparison result indicates that the overload setting value of the first main transformer is equal to the overload setting value of the second main transformer, the control strategy for the 10KV segmented standby automatic transfer device is determined according to the second comparison result. Specifically, if the second comparison result indicates that the comprehensive value of the main transformer power is greater than the overload setting value of the first main transformer or the overload setting value of the second main transformer, it indicates that there is a risk of main transformer overload when switching the first main transformer and switching the second main transformer for power supply. Therefore, it is determined to discharge the 10KV segmented standby automatic transfer in mode one and mode two, so that the 10KV segmented standby automatic transfer devices of the first main transformer and the second main transformer both exit the soft pressure plate of the standby automatic transfer function.

[0061] Optionally, the step of constructing a discharge strategy for 10KV segmented standby automatic transfer mode 1 and 10KV segmented standby automatic transfer mode 2 based on the first comparison result and the second comparison result includes: when the first comparison result indicates that the overload setting value of the first main transformer is greater than the overload setting value of the second main transformer, and the second comparison result indicates that the comprehensive power value of the main transformer is greater than the overload setting value of the first main transformer and the overload setting value of the second main transformer, determining the discharge of 10KV standby automatic transfer mode 1 and the discharge of 10KV standby automatic transfer mode 2; constructing a discharge strategy based on the discharge of 10KV standby automatic transfer mode 1 and the discharge of 10KV standby automatic transfer mode 2, and discharging the 10KV segmented standby automatic transfer device in mode 1 and mode 2 based on the discharge strategy.

[0062] Similarly, when the first comparison result indicates that the overload setting value of the first main transformer is greater than the overload setting value of the second main transformer, if the second comparison result indicates that the comprehensive value of the main transformer power is greater than the overload setting value of the first main transformer and the overload value of the second main transformer, it indicates that there is a risk of main transformer overload when switching the first main transformer and switching the second main transformer for power supply. Therefore, it is necessary to discharge the 10KV sectioned standby automatic transfer in mode one and mode two, so that the 10KV sectioned standby automatic transfer devices of the first main transformer and the second main transformer both exit the standby automatic transfer function soft pressure plate, and automatic switching of the backup power supply cannot be achieved in the standby automatic transfer power supply state.

[0063] Optionally, the step of constructing a discharge strategy for 10KV segmented standby automatic transfer mode 1 and 10KV segmented standby automatic transfer mode 2 based on the first comparison result and the second comparison result includes: when the first comparison result indicates that the overload setting value of the first main transformer is greater than the overload setting value of the second main transformer, and the second comparison result indicates that the comprehensive power value of the main transformer is greater than the overload setting value of the second main transformer and the comprehensive power value of the main transformer is less than the overload setting value of the first main transformer, determining that 10KV standby automatic transfer mode 1 is charged and 10KV standby automatic transfer mode 2 is discharged; constructing a discharge strategy based on the charging of 10KV standby automatic transfer mode 1 and the discharging of 10KV standby automatic transfer mode 2, and based on the discharge strategy, charging the 10KV segmented standby automatic transfer device in mode 1 and discharging in mode 2.

[0064] It should be noted that when the first comparison result indicates that the overload setting value of the first main transformer is greater than the overload setting value of the second main transformer, if the second comparison result indicates that the comprehensive power value of the main transformer is greater than the overload setting value of the second main transformer and the comprehensive power value of the main transformer is less than the overload setting value of the first main transformer, it indicates that switching the second main transformer as a backup power supply will cause the power of the second main transformer to be overloaded, making the main transformer at risk of failure. In this case, it is necessary to exit the functional soft pressure plate of the 10KV segmented standby automatic transfer mode 2, that is, to construct a discharge strategy for the 10KV standby automatic transfer mode 2 discharge, and switching the first main transformer will not cause the main transformer to be overloaded, so the 10KV standby automatic transfer mode 1 remains in a charging state.

[0065] Optionally, the step of constructing a discharge strategy for 10KV segmented standby automatic transfer mode 1 and 10KV segmented standby automatic transfer mode 2 based on the first comparison result and the second comparison result includes: when the first comparison result indicates that the overload setting value of the first main transformer is less than the overload setting value of the second main transformer, and the second comparison result indicates that the comprehensive power value of the main transformer is greater than the overload setting value of the first main transformer and the overload setting value of the second main transformer, determining the discharge of 10KV standby automatic transfer mode 1 and the discharge of 10KV standby automatic transfer mode 2; constructing a discharge strategy based on the discharge of 10KV standby automatic transfer mode 1 and the discharge of 10KV standby automatic transfer mode 2, and discharging the 10KV segmented standby automatic transfer device in mode 1 and mode 2 based on the discharge strategy.

[0066] It should be noted that, when the first comparison result indicates that the overload setting value of the first main transformer is smaller than the overload setting value of the second main transformer, if the second comparison result indicates that the comprehensive value of the main transformer power is greater than the overload setting value of the first main transformer and the overload setting value of the second main transformer, it indicates that there is a risk of main transformer overload when switching the first main transformer and switching the second main transformer for power supply. Therefore, it is necessary to discharge the 10KV segmented standby automatic transfer in mode one and mode two, so that the 10KV segmented standby automatic transfer devices of the first main transformer and the second main transformer both exit the standby automatic transfer function soft pressure plate, so that the 10KV segmented standby automatic transfer device cannot automatically switch the first main transformer and the second main transformer as backup power supplies.

[0067] Optionally, the step of constructing a discharge strategy for 10KV segmented standby automatic transfer mode 1 and 10KV segmented standby automatic transfer mode 2 based on the first comparison result and the second comparison result includes: when the first comparison result indicates that the overload setting value of the first main transformer is less than the overload setting value of the second main transformer, and the second comparison result indicates that the comprehensive power value of the main transformer is greater than the overload setting value of the first main transformer and the comprehensive power value of the main transformer is less than the overload setting value of the second main transformer, determining that 10KV standby automatic transfer mode 1 is discharged and 10KV standby automatic transfer mode 2 is charged; constructing a discharge strategy based on the 10KV standby automatic transfer mode 1 discharge and the 10KV standby automatic transfer mode 2 charging, and based on the discharge strategy, performing mode 1 discharge and mode 2 charging on the 10KV segmented standby automatic transfer device.

[0068] It should be noted that when the first comparison result indicates that the overload setting value of the first main transformer is smaller than the overload setting value of the second main transformer, if the second comparison result indicates that the comprehensive power value of the main transformer is greater than the overload setting value of the first main transformer and the comprehensive power value of the main transformer is smaller than the overload setting value of the second main transformer, it indicates that switching the first main transformer as the backup power supply will cause the power overload of the first main transformer, making the first main transformer at risk of failure. In this case, it is necessary to exit the functional soft pressure plate of the 10KV segmented standby automatic transfer mode 1, that is, to construct a discharge strategy for the 10KV standby automatic transfer mode 1 discharge, and switching the second main transformer will not cause the main transformer to be overloaded, so the 10KV standby automatic transfer mode 2 remains in a charging state.

[0069] Optionally, the charging conditions of the 10KV segmented standby automatic start-up device include at least: the hard pressure plate of the 10KV segmented standby automatic start-up device is put into operation, the soft pressure plate of the 10KV segmented standby automatic start-up device is put into operation, the low-voltage side bus of the first main transformer is under pressure, the low-voltage side bus of the second main transformer is under pressure, the first circuit breaker and the second circuit breaker are closed and the third circuit breaker is open, wherein the first circuit breaker represents the circuit breaker connected to the first main transformer, the second circuit breaker represents the circuit breaker connected to the second main transformer, and the third circuit breaker represents the circuit breaker on the low-voltage side bus.

[0070] It should be noted that the charging conditions of the 10KV segmented standby automatic transfer device, in addition to the fact that the main transformer is not overloaded, also need to meet the following conditions: the hard pressure plate of the 10KV segmented standby automatic transfer device is put into operation, the soft pressure plate of the 10KV segmented standby automatic transfer device is put into operation, the low-voltage side bus of the first main transformer is under pressure, the low-voltage side bus of the second main transformer is under pressure, the first circuit breaker and the second circuit breaker are closed and the third circuit breaker is open, wherein the first circuit breaker represents the circuit breaker connected to the first main transformer, the second circuit breaker represents the circuit breaker connected to the second main transformer, and the third circuit breaker represents the circuit breaker on the low-voltage side bus. Specifically, the input of the hard pressure plate and the soft pressure plate is a prerequisite for the normal operation of the standby automatic transfer function, and both are indispensable. The hard pressure plate provides a physical level of protection and control, while the soft pressure plate provides flexibility and remote control capabilities. The presence of pressure on the low-voltage side bus indicates that the power system is in normal working condition. The closing of the first and second circuit breakers and the opening of the third circuit breaker indicate that the first and second main transformers are operating normally. All of the above are prerequisites for charging the 10KV sectioned standby automatic transfer device.

[0071] Through the above steps, firstly, the voltage data and current data of the first main transformer and the phase difference between the voltage data and the current data are collected to obtain the first voltage data, the first current data and the first phase difference, and the voltage data and current data of the second main transformer and the phase difference between the voltage data and the current data are collected to obtain the second voltage data, the second current data and the second phase difference, wherein the first main transformer and the second main transformer are two main transformers that are backup for each other, and the first main transformer power of the first main transformer is calculated based on the first voltage data, the first current data and the first phase difference, and the second main transformer power of the second main transformer is calculated based on the second voltage data, the second current data and the second phase difference, and the main transformer power comprehensive value is obtained based on the first main transformer power and the second main transformer power, and then the first main transformer overload of the first main transformer is obtained. The setting value and the second main transformer overload setting value of the second main transformer are compared, and the first main transformer overload setting value and the second main transformer overload setting value are compared to obtain a first comparison result, and the main transformer power comprehensive value is compared with the first main transformer overload setting value and the second main transformer overload setting value respectively to obtain a second comparison result, and finally, based on the first comparison result and the second comparison result, the discharge strategy of the 10KV segmented standby automatic transfer mode 1 and the 10KV segmented standby automatic transfer mode 2 is constructed, and the 10KV segmented standby automatic transfer device is controlled based on the discharge strategy, wherein, when the 10KV segmented standby automatic transfer mode 1 indicates that the low-voltage side bus of the second main transformer loses pressure, the first main transformer is switched to supply power, and when the 10KV segmented standby automatic transfer mode 2 indicates that the low-voltage side bus of the first main transformer loses pressure, the second main transformer is switched to supply power.

[0072] In this embodiment, for two main transformers that are mutually standby, the power sum of the two main transformers is calculated to obtain the main transformer power comprehensive value, and the main transformer overload setting value is configured for each main transformer in advance. The overload condition of the main transformer is determined based on the comparison result of the main transformer overload value of the main transformer and the comparison result of the main transformer power comprehensive value of the main transformer and the main transformer overload setting value, so as to construct a discharge strategy for the 10KV segmented standby automatic switching device to avoid the overload of the main transformer, and the power change of the main transformer can be responded to more quickly, and the standby automatic switching function can be adjusted in time, so as to avoid the extension of the power supply interruption time caused by the judgment and operation delay of the dispatcher, and improve the control efficiency of the 10KV standby automatic switching. At the same time, by accurately calculating the main transformer power comprehensive value and comparing the overload setting value, the accuracy of the standby automatic switching function switching is improved, the possibility of malfunction is reduced, and the stable operation of the power system is ensured. This solves the technical problem in the related art that when controlling the 10KV segmented standby automatic switching device, it is necessary to manually judge the input conditions by the dispatcher, which is inefficient.

[0073] Another optional specific implementation is described in detail below.

[0074] Figure 2 is an optional primary wiring diagram of a power system according to an embodiment of the present invention, such as Figure 2 As shown in FIG. 1 , the working environment of the 10KV segmented standby automatic switching device includes at least two main transformers, such as Figure 2 In the first main transformer and the second main transformer, DL represents the circuit breaker. The first main transformer is connected to 1DL (corresponding to the first circuit breaker mentioned above), and the second main transformer is connected to 2DL (corresponding to the second circuit breaker mentioned above). 3DL (corresponding to the third circuit breaker mentioned above) is deployed on the low-voltage side bus of the first main transformer and the second main transformer. Under normal circumstances, 1DL and 2DL are closed, and 3DL is open. 1CT and 2CT are current transformers, and 1PT and 2PT are voltage transformers, which are used to collect current and voltage data in the circuit in real time. 1M represents the low-voltage side bus of the first main transformer, and 2M represents the low-voltage side bus of the second main transformer.

[0075] The input quantities of the 10kV section standby automatic switching are: the first circuit breaker switch position DL1, the first circuit breaker switch closing position KKJ1, the second circuit breaker switch position DL2, the second circuit breaker switch closing position KKJ2, the third circuit breaker switch position DL3, the standby automatic switching function pressure plate status, external locking input, reset input, etc.

[0076] The analog quantities connected to the 10kV sectioned standby automatic transfer are: 10kV 1M three-phase voltage UA1, UB1, UC1, 10kV 2M three-phase voltage UA2, UB2, UC2, the first main transformer three-phase current IA1, I B1, IC1, the first main transformer three-phase current IA2, I B2, IC2.

[0077] Under normal circumstances, the 10kV section standby automatic transfer is in a charging state. When the power system bus loses pressure or the power supply is interrupted, the backup power supply is automatically switched to supply power. The charging conditions of the 10kV section standby automatic transfer are: the 10kV section standby automatic transfer hard pressure plate is put into operation; the 10kV section standby automatic transfer soft pressure plate is put into operation; the 10kV 1M bus and the 10kV 2M bus have pressure; 1DL and 2DL are closed, and 3DL is open; KKJ1=1, KKJ2=1; there is no interlocking standby automatic transfer; the sum of the powers of the two main transformers is less than the overload setting, among which KKJ1 is the position signal after the first circuit breaker switch is closed, KKJ2 is the position signal after the second circuit breaker switch is closed, and 1 indicates that the switch is closed.

[0078] 10kV sectional standby automatic transfer mode 1 action logic: 1) 10kV sectional standby automatic transfer mode 1 charging; 2) 10kV 2M busbar has no voltage; 3) There is no current on the low-voltage side of the second main transformer;

[0079] After the above three conditions are met, the 10kV section standby automatic switch is started, and the 2DL switch is tripped after a t1 delay; after the 10kV section standby automatic switch detects the 2DL position, the 10kV section 3DL switch is closed after a t2 delay.

[0080] 10kV sectional standby automatic transfer mode 2 action logic: 1) 10kV sectional standby automatic transfer mode 2 charging; 2) 10kV 1M busbar has no voltage; 3) There is no current on the low-voltage side of the first main transformer;

[0081] After the above three conditions are met, the 10kV section standby automatic switch is started, and the 1DL switch is tripped after a t1 delay; after the 10kV section standby automatic switch detects the 1DL position, the 10kV section 3DL switch is closed after a t2 delay.

[0082] The embodiment of the present invention collects and calculates the real-time power of the operating main transformer in real time. When the power sum of the two main stations is greater than the master station overload setting value, the corresponding standby automatic transfer mode can be automatically exited; when the power sum of the two main stations is less than the main transformer overload setting value, the corresponding standby automatic transfer mode can be automatically entered, thereby realizing automatic switching on and off of the standby automatic transfer function and ensuring safe and stable operation of the power system. Figure 3 1 is a schematic diagram of an optional adaptive 10KV segmented standby automatic switching control process according to an embodiment of the present invention, such as Figure 3 As shown in the figure, the adaptive 10KV segmented standby automatic switching control process includes:

[0083] When Pset1=Pset2

[0084] 1) When P=P1+P2>Pset1 or P=P1+P2>Pset2, the 10kV section standby automatic switching mode 1 and mode 2 discharge simultaneously.

[0085] in, is the real-time active power of the first main transformer (corresponding to the above-mentioned first main transformer power); is the real-time active power of the second main transformer (corresponding to the above-mentioned second main transformer power); is the included angle between UA1 and IA1, is the included angle between UA2 and IA2, Pset1 is the first main transformer overload setting value of the first main transformer, and Pset2 is the second main transformer overload setting value of the second main transformer.

[0086] When Pset1 > Pset2

[0087] 1) When P = P1 + P2 > Pset2 and P = P1 + P2 < Pset1, the second 10kV sectional bus automatic standby power supply mode discharges, and the first mode maintains the charging state;

[0088] 2) When P = P1 + P2 > Pset1, both the first and second 10kV sectional bus automatic standby power supply modes discharge simultaneously.

[0089] When Pset1 < Pset2

[0090] 1) When P = P1 + P2 > Pset1 and P = P1 + P2 < Pset2, the first 10kV sectional bus automatic standby power supply mode discharges, and the second mode maintains the charging state;

[0091] 2) When P = P1 + P2 > Pset2, both the first and second 10kV sectional bus automatic standby power supply modes discharge simultaneously.

[0092] In the embodiments of the present invention, a solution is provided for the automatic switching on and off of the 10kV sectional bus automatic standby power supply function. By collecting and calculating the real-time power of the main transformers in operation in real time, when the combined value of the real-time powers of the two main transformers is greater than the main transformer overload setting value, the corresponding automatic standby power supply mode can be automatically withdrawn; when the sum of the real-time powers of the two main transformers is less than the main transformer overload setting value, the corresponding automatic standby power supply mode can be automatically switched on, thereby realizing the automatic switching on and off of the automatic standby power supply function, improving the control efficiency and accuracy of the 10kV sectional bus automatic standby power supply, and ensuring the safe and stable operation of the power system.

[0093] The following is a detailed description in combination with another embodiment.

[0094] Embodiment 2

[0095] An adaptive 10KV sectional bus automatic standby power supply control device provided in this embodiment includes multiple implementation units, and each implementation unit corresponds to each implementation step in the above-mentioned Embodiment 1. Its specific implementation manner and beneficial effects can be referred to the foregoing method embodiment, and will not be elaborated here.

[0096] Figure 41 is a schematic diagram of an optional adaptive 10KV segmented standby automatic control device according to an embodiment of the present invention. Figure 4 As shown, the adaptive 10KV segmented standby automatic switching control device may include: a collection unit 41, a calculation unit 42, an acquisition unit 43, a comparison unit 44, and a control unit 45, wherein:

[0097] The collecting unit 41 is used to collect the voltage data and the current data of the first main transformer and the phase difference between the voltage data and the current data to obtain the first voltage data, the first current data and the first phase difference, and collect the voltage data and the current data of the second main transformer and the phase difference between the voltage data and the current data to obtain the second voltage data, the second current data and the second phase difference, wherein the first main transformer and the second main transformer are two main transformers that serve as backup for each other;

[0098] a calculation unit 42, configured to calculate a first main transformer power of the first main transformer based on the first voltage data, the first current data and the first phase difference, and to calculate a second main transformer power of the second main transformer based on the second voltage data, the second current data and the second phase difference, and to obtain a main transformer power comprehensive value based on the first main transformer power and the second main transformer power;

[0099] An acquisition unit 43 is used to acquire a first main transformer overload setting value of the first main transformer and a second main transformer overload setting value of the second main transformer;

[0100] The comparison unit 44 is used to compare the first main transformer overload setting value with the second main transformer overload setting value to obtain a first comparison result, and to compare the main transformer power comprehensive value with the first main transformer overload setting value and the second main transformer overload setting value respectively to obtain a second comparison result;

[0101] The control unit 45 is used to construct the discharge strategy of 10KV segmented standby automatic transfer mode 1 and 10KV segmented standby automatic transfer mode 2 based on the first comparison result and the second comparison result, and control the 10KV segmented standby automatic transfer device based on the discharge strategy, wherein, when the 10KV segmented standby automatic transfer mode 1 indicates that the low-voltage side bus of the second main transformer has a voltage loss, the first main transformer is switched to supply power, and when the 10KV segmented standby automatic transfer mode 2 indicates that the low-voltage side bus of the first main transformer has a voltage loss, the second main transformer is switched to supply power.

[0102] The above-mentioned adaptive 10KV segmented standby automatic control device collects the voltage data and current data of the first main transformer and the phase difference between the voltage data and the current data through the collection unit 41 to obtain the first voltage data, the first current data and the first phase difference, and collects the voltage data and current data of the second main transformer and the phase difference between the voltage data and the current data to obtain the second voltage data, the second current data and the second phase difference, wherein the first main transformer and the second main transformer are two main transformers that serve as backup for each other; the first main transformer power of the first main transformer is calculated based on the first voltage data, the first current data and the first phase difference through the calculation unit 42, and the second main transformer power of the second main transformer is calculated based on the second voltage data, the second current data and the second phase difference, and the main transformer power comprehensive value is obtained based on the first main transformer power and the second main transformer power; the first main transformer power is obtained through the acquisition unit 43. The first main transformer overload setting value of the transformer and the second main transformer overload setting value of the second main transformer are compared by the comparison unit 44 to obtain a first comparison result, and the main transformer power comprehensive value is compared with the first main transformer overload setting value and the second main transformer overload setting value respectively to obtain a second comparison result; the control unit 45 constructs the discharge strategy of the 10KV segmented standby automatic transfer mode 1 and the 10KV segmented standby automatic transfer mode 2 based on the first comparison result and the second comparison result, and controls the 10KV segmented standby automatic transfer device based on the discharge strategy, wherein, when the 10KV segmented standby automatic transfer mode 1 indicates that the low-voltage side bus of the second main transformer loses pressure, the first main transformer is switched to supply power, and when the 10KV segmented standby automatic transfer mode 2 indicates that the low-voltage side bus of the first main transformer loses pressure, the second main transformer is switched to supply power.

[0103] In this embodiment, for two main transformers that are mutually standby, the power sum of the two main transformers is calculated to obtain the main transformer power comprehensive value, and the main transformer overload setting value is configured for each main transformer in advance. The overload condition of the main transformer is determined based on the comparison result of the main transformer overload value of the main transformer and the comparison result of the main transformer power comprehensive value of the main transformer and the main transformer overload setting value, so as to construct a discharge strategy for the 10KV segmented standby automatic switching device to avoid the overload of the main transformer, and the power change of the main transformer can be responded to more quickly, and the standby automatic switching function can be adjusted in time, so as to avoid the extension of the power supply interruption time caused by the judgment and operation delay of the dispatcher, and improve the control efficiency of the 10KV standby automatic switching. At the same time, by accurately calculating the main transformer power comprehensive value and comparing the overload setting value, the accuracy of the standby automatic switching function switching is improved, the possibility of malfunction is reduced, and the stable operation of the power system is ensured. This solves the technical problem in the related art that when controlling the 10KV segmented standby automatic switching device, it is necessary to manually judge the input conditions by the dispatcher, which is inefficient.

[0104] Optionally, the control unit 45 includes: a first determination module, used to determine the 10KV standby automatic transfer mode 1 discharge and the 10KV standby automatic transfer mode 2 discharge when the first comparison result indicates that the overload setting value of the first main transformer is equal to the overload setting value of the second main transformer, and the second comparison result indicates that the comprehensive value of the main transformer power is greater than any one of the overload setting value of the first main transformer and the overload setting value of the second main transformer; a first construction module, used to construct a discharge strategy based on the 10KV standby automatic transfer mode 1 discharge and the 10KV standby automatic transfer mode 2 discharge, and discharge the 10KV segmented standby automatic transfer device in mode 1 and mode 2 based on the discharge strategy.

[0105] Optionally, the control unit 45 also includes: a second determination module, used to determine the 10KV standby automatic transfer mode one discharge and the 10KV standby automatic transfer mode two discharge when the first comparison result indicates that the overload setting value of the first main transformer is greater than the overload setting value of the second main transformer, and the second comparison result indicates that the comprehensive value of the main transformer power is greater than the overload setting value of the first main transformer and the overload setting value of the second main transformer; a second construction module, used to construct a discharge strategy based on the 10KV standby automatic transfer mode one discharge and the 10KV standby automatic transfer mode two discharge, and discharge the 10KV segmented standby automatic transfer device in mode one and mode two based on the discharge strategy.

[0106] Optionally, the control unit 45 also includes: a third determination module, used to determine the 10KV standby automatic transfer mode one charging and the 10KV standby automatic transfer mode two discharging when the first comparison result indicates that the overload setting value of the first main transformer is greater than the overload setting value of the second main transformer, and the second comparison result indicates that the main transformer power comprehensive value is greater than the second main transformer overload setting value and the main transformer power comprehensive value is less than the first main transformer overload setting value; a third construction module, used to construct a discharge strategy based on the 10KV standby automatic transfer mode one charging and the 10KV standby automatic transfer mode two discharging, and based on the discharge strategy, perform mode one charging and mode two discharging on the 10KV segmented standby automatic transfer device.

[0107] Optionally, the control unit 45 also includes: a fourth determination module, used to determine the 10KV standby automatic transfer mode one discharge and the 10KV standby automatic transfer mode two discharge when the first comparison result indicates that the overload setting value of the first main transformer is less than the overload setting value of the second main transformer, and the second comparison result indicates that the comprehensive value of the main transformer power is greater than the overload setting value of the first main transformer and the overload setting value of the second main transformer; a fourth construction module, used to construct a discharge strategy based on the 10KV standby automatic transfer mode one discharge and the 10KV standby automatic transfer mode two discharge, and discharge the 10KV segmented standby automatic transfer device in mode one and mode two based on the discharge strategy.

[0108] Optionally, the control unit 45 also includes: a fifth determination module, used to determine the 10KV standby automatic transfer mode 1 discharge and the 10KV standby automatic transfer mode 2 charging when the first comparison result indicates that the overload setting value of the first main transformer is less than the overload setting value of the second main transformer, and the second comparison result indicates that the main transformer power comprehensive value is greater than the first main transformer overload setting value and the main transformer power comprehensive value is less than the second main transformer overload setting value; a fifth construction module, used to construct a discharge strategy based on the 10KV standby automatic transfer mode 1 discharge and the 10KV standby automatic transfer mode 2 charging, and based on the discharge strategy, perform mode 1 discharge and mode 2 charging on the 10KV segmented standby automatic transfer device.

[0109] Optionally, the charging conditions of the 10KV segmented standby automatic start-up device include at least: the hard pressure plate of the 10KV segmented standby automatic start-up device is put into operation, the soft pressure plate of the 10KV segmented standby automatic start-up device is put into operation, the low-voltage side bus of the first main transformer is under pressure, the low-voltage side bus of the second main transformer is under pressure, the first circuit breaker and the second circuit breaker are closed and the third circuit breaker is open, wherein the first circuit breaker represents the circuit breaker connected to the first main transformer, the second circuit breaker represents the circuit breaker connected to the second main transformer, and the third circuit breaker represents the circuit breaker on the low-voltage side bus.

[0110] Optionally, the action logic of the 10KV sectional standby automatic switching mode 1 is: the second circuit breaker is opened after a first time delay, and the third circuit breaker is closed after a second time delay.

[0111] Optionally, the action logic of the second 10KV segmented standby automatic switching mode is: the first circuit breaker is opened after a first time delay, and the third circuit breaker is closed after a second time delay.

[0112] The above-mentioned adaptive 10KV segmented standby automatic control device may also include a processor and a memory. The above-mentioned acquisition unit 41, calculation unit 42, acquisition unit 43, comparison unit 44, control unit 45, etc. are all stored in the memory as program units, and the processor executes the above-mentioned program units stored in the memory to realize the corresponding functions.

[0113] The processor includes a kernel, which retrieves the corresponding program unit from the memory. One or more kernels can be set, and the 10KV segmented standby automatic switching device can be controlled by adjusting kernel parameters.

[0114] The above-mentioned memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash memory (fl ash RAM), and the memory includes at least one storage chip.

[0115] According to another aspect of an embodiment of the present invention, a computer-readable storage medium is also provided, the computer-readable storage medium including a stored computer program, wherein when the computer program is running, the device where the computer-readable storage medium is located is controlled to execute any one of the above-mentioned adaptive 10KV segmented standby automatic control methods.

[0116] According to another aspect of an embodiment of the present invention, there is also provided an electronic device, comprising one or more processors and a memory, the memory being used to store one or more programs, wherein when the one or more programs are executed by one or more processors, the one or more processors implement any one of the above-mentioned adaptive 10KV segmented standby automatic control methods.

[0117] The present application also provides a computer program product, which, when executed on a data processing device, is suitable for executing a program that is initialized with the following method steps: collecting voltage data and current data of a first main transformer and a phase difference between the voltage data and the current data to obtain first voltage data, first current data and a first phase difference, and collecting voltage data and current data of a second main transformer and a phase difference between the voltage data and the current data to obtain second voltage data, second current data and a second phase difference, wherein the first main transformer and the second main transformer are two main transformers that serve as backup for each other; calculating the first main transformer power of the first main transformer based on the first voltage data, the first current data and the first phase difference, and calculating the second main transformer power of the second main transformer based on the second voltage data, the second current data and the second phase difference, and obtaining the main transformer power based on the first main transformer power and the second main transformer power. Comprehensive value; obtain the first main transformer overload setting value of the first main transformer and the second main transformer overload setting value of the second main transformer; compare the first main transformer overload setting value and the second main transformer overload setting value to obtain a first comparison result, and compare the main transformer power comprehensive value with the first main transformer overload setting value and the second main transformer overload setting value respectively to obtain a second comparison result; construct the discharge strategy of 10KV segmented standby automatic transfer mode 1 and 10KV segmented standby automatic transfer mode 2 based on the first comparison result and the second comparison result, and control the 10KV segmented standby automatic transfer device based on the discharge strategy, wherein, when the 10KV segmented standby automatic transfer mode 1 indicates that the low-voltage side bus of the second main transformer loses pressure, the first main transformer is switched to supply power, and when the 10KV segmented standby automatic transfer mode 2 indicates that the low-voltage side bus of the first main transformer loses pressure, the second main transformer is switched to supply power.

[0118] The present application also provides a computer program product, which, when executed on a data processing device, is also suitable for executing a program that is initialized with the following method steps: the steps of constructing a discharge strategy for 10KV segmented standby automatic transfer mode 1 and 10KV segmented standby automatic transfer mode 2 based on a first comparison result and a second comparison result include: when the first comparison result indicates that the overload setting value of the first main transformer is equal to the overload setting value of the second main transformer, and the second comparison result indicates that the comprehensive power value of the main transformer is greater than any one of the overload setting value of the first main transformer and the overload setting value of the second main transformer, determining that 10KV standby automatic transfer mode 1 discharges and 10KV standby automatic transfer mode 2 discharges; constructing a discharge strategy based on the 10KV standby automatic transfer mode 1 discharge and the 10KV standby automatic transfer mode 2 discharge, and discharging the 10KV segmented standby automatic transfer device in mode 1 and mode 2 based on the discharge strategy.

[0119] The present application also provides a computer program product, which, when executed on a data processing device, is also suitable for executing a program that is initialized with the following method steps: the steps of constructing a discharge strategy for 10KV segmented standby automatic transfer mode 1 and 10KV segmented standby automatic transfer mode 2 based on a first comparison result and a second comparison result include: when the first comparison result indicates that the overload setting value of the first main transformer is greater than the overload setting value of the second main transformer, and the second comparison result indicates that the comprehensive power value of the main transformer is greater than the overload setting value of the first main transformer and the overload setting value of the second main transformer, determining that 10KV standby automatic transfer mode 1 discharges and 10KV standby automatic transfer mode 2 discharges; constructing a discharge strategy based on the 10KV standby automatic transfer mode 1 discharge and the 10KV standby automatic transfer mode 2 discharge, and discharging the 10KV segmented standby automatic transfer device in mode 1 and mode 2 based on the discharge strategy.

[0120] The present application also provides a computer program product, which, when executed on a data processing device, is also suitable for executing a program that is initialized with the following method steps: the steps of constructing a discharge strategy for 10KV segmented standby automatic transfer mode 1 and 10KV segmented standby automatic transfer mode 2 based on a first comparison result and a second comparison result include: when the first comparison result indicates that the overload setting value of the first main transformer is greater than the overload setting value of the second main transformer, and the second comparison result indicates that the comprehensive power value of the main transformer is greater than the overload setting value of the second main transformer and the comprehensive power value of the main transformer is less than the overload setting value of the first main transformer, determining that 10KV standby automatic transfer mode 1 is charged and 10KV standby automatic transfer mode 2 is discharged; constructing a discharge strategy based on the charging of 10KV standby automatic transfer mode 1 and the discharging of 10KV standby automatic transfer mode 2, and based on the discharge strategy, charging the 10KV segmented standby automatic transfer device in mode 1 and discharging in mode 2.

[0121] The present application also provides a computer program product, which, when executed on a data processing device, is also suitable for executing a program that is initialized with the following method steps: the steps of constructing a discharge strategy for 10KV segmented standby automatic transfer mode 1 and 10KV segmented standby automatic transfer mode 2 based on a first comparison result and a second comparison result include: when the first comparison result indicates that the overload setting value of the first main transformer is less than the overload setting value of the second main transformer, and the second comparison result indicates that the comprehensive power value of the main transformer is greater than the overload setting value of the first main transformer and the overload setting value of the second main transformer, determining that the 10KV standby automatic transfer mode 1 discharges and the 10KV standby automatic transfer mode 2 discharges; constructing a discharge strategy based on the 10KV standby automatic transfer mode 1 discharge and the 10KV standby automatic transfer mode 2 discharge, and discharging the 10KV segmented standby automatic transfer device in mode 1 and mode 2 based on the discharge strategy.

[0122] The present application also provides a computer program product, which, when executed on a data processing device, is also suitable for executing a program that is initialized with the following method steps: the steps of constructing a discharge strategy for 10KV segmented standby automatic transfer mode 1 and 10KV segmented standby automatic transfer mode 2 based on a first comparison result and a second comparison result include: when the first comparison result indicates that the overload setting value of the first main transformer is less than the overload setting value of the second main transformer, and the second comparison result indicates that the comprehensive power value of the main transformer is greater than the overload setting value of the first main transformer and the comprehensive power value of the main transformer is less than the overload setting value of the second main transformer, determine that 10KV standby automatic transfer mode 1 is discharged and 10KV standby automatic transfer mode 2 is charged; construct a discharge strategy based on the 10KV standby automatic transfer mode 1 discharge and the 10KV standby automatic transfer mode 2 charging, and based on the discharge strategy, perform mode 1 discharge and mode 2 charging on the 10KV segmented standby automatic transfer device.

[0123] The present application also provides a computer program product, which, when executed on a data processing device, is also suitable for executing a program that initializes the following method steps: the charging conditions of the 10KV segmented standby automatic transfer device at least include: the hard pressure plate of the 10KV segmented standby automatic transfer device is put into operation, the soft pressure plate of the 10KV segmented standby automatic transfer device is put into operation, the low-voltage side bus of the first main transformer is under pressure, the low-voltage side bus of the second main transformer is under pressure, the first circuit breaker and the second circuit breaker are closed and the third circuit breaker is open, wherein the first circuit breaker represents a circuit breaker connected to the first main transformer, the second circuit breaker represents a circuit breaker connected to the second main transformer, and the third circuit breaker represents a circuit breaker on the low-voltage side bus.

[0124] The present application also provides a computer program product, which, when executed on a data processing device, is also suitable for executing a program that initializes the following method steps: the action logic of the 10KV segmented standby automatic switching mode 1 is: the second circuit breaker is opened after a first time delay, and the third circuit breaker is closed after a second time delay.

[0125] The present application also provides a computer program product, which, when executed on a data processing device, is also suitable for executing an initialization program having the following method steps: the action logic of the 10KV segmented standby automatic switching mode 2 is: after a first time delay, the first circuit breaker is opened, and after a second time delay, the third circuit breaker is closed.

[0126] Figure 5 1 is a hardware structure block diagram of an electronic device (or mobile device) of an adaptive 10KV segmented standby automatic switching control method according to an embodiment of the present invention. Figure 5 As shown, the electronic device may include one or more ( Figure 5 502a, 502b, ..., 502n are used to illustrate) processor 502 (processor 502 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA), memory 504 for storing data. In addition, it may also include: a display, an input / output interface (I / O interface), a universal serial bus (USB) port (which may be included as one of the ports of the I / O interface), a network interface, a keyboard, a power supply and / or a camera. It can be understood by those skilled in the art that Figure 5 The structure shown is only for illustration and does not limit the structure of the above electronic device. Figure 5 More or fewer components as shown, or with Figure 5 Different configurations shown.

[0127] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0128] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0129] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0130] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0131] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0132] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

[0133] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An adaptive 10KV segmented standby automatic switching control method, characterized in that: include: collecting voltage data and current data of a first main transformer and a phase difference between the voltage data and the current data to obtain first voltage data, first current data and a first phase difference, and collecting voltage data and current data of a second main transformer and a phase difference between the voltage data and the current data to obtain second voltage data, second current data and a second phase difference, wherein the first main transformer and the second main transformer are two main transformers that serve as backup for each other; Calculate a first main transformer power of the first main transformer based on the first voltage data, the first current data and the first phase difference, calculate a second main transformer power of the second main transformer based on the second voltage data, the second current data and the second phase difference, and obtain a main transformer power comprehensive value based on the first main transformer power and the second main transformer power; Obtaining a first main transformer overload setting value of the first main transformer and a second main transformer overload setting value of the second main transformer; Compare the first main transformer overload setting value with the second main transformer overload setting value to obtain a first comparison result, and compare the main transformer power comprehensive value with the first main transformer overload setting value and the second main transformer overload setting value respectively to obtain a second comparison result; Based on the first comparison result and the second comparison result, a discharge strategy of a 10KV segmented standby automatic transfer mode 1 and a 10KV segmented standby automatic transfer mode 2 is constructed, and the 10KV segmented standby automatic transfer device is controlled based on the discharge strategy, wherein the 10KV segmented standby automatic transfer mode 1 indicates that when a voltage loss occurs on the low-voltage side bus of the second main transformer, the first main transformer is switched to supply power, and the 10KV segmented standby automatic transfer mode 2 indicates that when a voltage loss occurs on the low-voltage side bus of the first main transformer, the second main transformer is switched to supply power.

2. The method according to claim 1, characterized in that The steps of constructing the discharge strategies of 10KV segmented standby automatic transfer mode 1 and 10KV segmented standby automatic transfer mode 2 based on the first comparison result and the second comparison result include: When the first comparison result indicates that the first main transformer overload setting value is equal to the second main transformer overload setting value, and the second comparison result indicates that the main transformer power comprehensive value is greater than any one of the first main transformer overload setting value and the second main transformer overload setting value, determine the 10KV standby automatic transfer mode 1 discharge and the 10KV standby automatic transfer mode 2 discharge; The discharge strategy is constructed based on the 10KV standby automatic transfer mode 1 discharge and the 10KV standby automatic transfer mode 2 discharge, and the 10KV segmented standby automatic transfer device is discharged in mode 1 and mode 2 based on the discharge strategy.

3. The method according to claim 1, characterized in that The steps of constructing the discharge strategies of 10KV segmented standby automatic transfer mode 1 and 10KV segmented standby automatic transfer mode 2 based on the first comparison result and the second comparison result include: When the first comparison result indicates that the overload setting value of the first main transformer is greater than the overload setting value of the second main transformer, and the second comparison result indicates that the comprehensive power value of the main transformer is greater than the overload setting value of the first main transformer and the overload setting value of the second main transformer, determine to discharge in 10KV standby automatic transfer mode 1 and 10KV standby automatic transfer mode 2; The discharge strategy is constructed based on the 10KV standby automatic transfer mode 1 discharge and the 10KV standby automatic transfer mode 2 discharge, and the 10KV segmented standby automatic transfer device is discharged in mode 1 and mode 2 based on the discharge strategy.

4. The method according to claim 1, characterized in that: The steps of constructing the discharge strategies of 10KV segmented standby automatic transfer mode 1 and 10KV segmented standby automatic transfer mode 2 based on the first comparison result and the second comparison result include: When the first comparison result indicates that the overload setting value of the first main transformer is greater than the overload setting value of the second main transformer, and the second comparison result indicates that the comprehensive power value of the main transformer is greater than the overload setting value of the second main transformer and the comprehensive power value of the main transformer is less than the overload setting value of the first main transformer, it is determined that the 10KV standby automatic transfer mode 1 is charged and the 10KV standby automatic transfer mode 2 is discharged; The discharge strategy is constructed based on the 10KV standby automatic transfer mode 1 charging and the 10KV standby automatic transfer mode 2 discharging, and based on the discharge strategy, the 10KV segmented standby automatic transfer device is charged in mode 1 and discharged in mode 2.

5. The method according to claim 1, characterized in that The steps of constructing the discharge strategies of 10KV segmented standby automatic transfer mode 1 and 10KV segmented standby automatic transfer mode 2 based on the first comparison result and the second comparison result include: When the first comparison result indicates that the overload setting value of the first main transformer is less than the overload setting value of the second main transformer, and the second comparison result indicates that the comprehensive power value of the main transformer is greater than the overload setting value of the first main transformer and the overload setting value of the second main transformer, determine to discharge in 10KV standby automatic transfer mode 1 and 10KV standby automatic transfer mode 2; The discharge strategy is constructed based on the 10KV standby automatic transfer mode 1 discharge and the 10KV standby automatic transfer mode 2 discharge, and the 10KV segmented standby automatic transfer device is discharged in mode 1 and mode 2 based on the discharge strategy.

6. The method according to claim 1, characterized in that The steps of constructing the discharge strategies of 10KV segmented standby automatic transfer mode 1 and 10KV segmented standby automatic transfer mode 2 based on the first comparison result and the second comparison result include: When the first comparison result indicates that the overload setting value of the first main transformer is less than the overload setting value of the second main transformer, and the second comparison result indicates that the comprehensive power value of the main transformer is greater than the overload setting value of the first main transformer and the comprehensive power value of the main transformer is less than the overload setting value of the second main transformer, it is determined that the 10KV standby automatic transfer mode 1 is discharged and the 10KV standby automatic transfer mode 2 is charged; The discharge strategy is constructed based on the 10KV standby automatic transfer mode 1 discharge and the 10KV standby automatic transfer mode 2 charging, and based on the discharge strategy, the 10KV segmented standby automatic transfer device is discharged in mode 1 and charged in mode 2.

7. The method according to claim 1, characterized in that The charging conditions of the 10KV segmented standby automatic start-up device at least include: the hard pressure plate of the 10KV segmented standby automatic start-up device is put into operation, the soft pressure plate of the 10KV segmented standby automatic start-up device is put into operation, the low-voltage side bus of the first main transformer is under pressure, the low-voltage side bus of the second main transformer is under pressure, the first circuit breaker and the second circuit breaker are closed and the third circuit breaker is open, wherein the first circuit breaker represents the circuit breaker connected to the first main transformer, the second circuit breaker represents the circuit breaker connected to the second main transformer, and the third circuit breaker represents the circuit breaker on the low-voltage side bus.

8. The method according to claim 1, characterized in that The action logic of the 10KV sectional standby automatic switching mode 1 is: the second circuit breaker is opened after a first time delay, and the third circuit breaker is closed after a second time delay.

9. The method according to claim 1, characterized in that: The action logic of the 10KV sectional standby automatic switching mode 2 is: the first circuit breaker is opened after a first time delay, and the third circuit breaker is closed after a second time delay.

10. An adaptive 10KV segmented standby automatic control device, characterized in that: include: a collection unit, configured to collect voltage data and current data of a first main transformer and a phase difference between the voltage data and the current data to obtain first voltage data, first current data and a first phase difference, and to collect voltage data and current data of a second main transformer and a phase difference between the voltage data and the current data to obtain second voltage data, second current data and a second phase difference, wherein the first main transformer and the second main transformer are two main transformers that serve as backup for each other; a calculation unit, configured to calculate a first main transformer power of the first main transformer based on the first voltage data, the first current data and the first phase difference, and to calculate a second main transformer power of the second main transformer based on the second voltage data, the second current data and the second phase difference, and to obtain a main transformer power comprehensive value based on the first main transformer power and the second main transformer power; an acquisition unit, configured to acquire a first main transformer overload setting value of the first main transformer and a second main transformer overload setting value of the second main transformer; a comparing unit, configured to compare the first main transformer overload setting value with the second main transformer overload setting value to obtain a first comparison result, and to compare the main transformer power comprehensive value with the first main transformer overload setting value and the second main transformer overload setting value respectively to obtain a second comparison result; A control unit is used to construct a discharge strategy of a 10KV segmented standby automatic transfer mode 1 and a 10KV segmented standby automatic transfer mode 2 based on the first comparison result and the second comparison result, and control the 10KV segmented standby automatic transfer device based on the discharge strategy, wherein the 10KV segmented standby automatic transfer mode 1 indicates that when a pressure loss occurs on the low-voltage side bus of the second main transformer, the first main transformer is switched to supply power, and the 10KV segmented standby automatic transfer mode 2 indicates that when a pressure loss occurs on the low-voltage side bus of the first main transformer, the second main transformer is switched to supply power.

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