Automatic start-up test method, device and automatic start-up test instrument

Abstract

The present invention discloses a standby automatic start-up test method, device and standby automatic start-up tester. The method comprises: receiving an output curve adjustment instruction from a user, obtaining output adjustment information in the output curve adjustment instruction; determining an output analog signal according to the output adjustment information based on a digital-to-analog conversion method; wherein the analog signal comprises an analog voltage signal or an analog current signal; outputting an actual output signal corresponding to the output analog signal to the standby automatic start-up device through an adjustable power supply, so as to obtain the test result of the standby automatic start-up device under the output curve. This technical solution solves the problem that the input and output terminals are fixed and cannot be adjusted during the test, and the disconnection and wiring operation is complicated, as well as the problem that the new standby automatic start-up action logic under the participation of new energy cannot be tested due to the inability to adjust the output curve, thereby achieving the simulation of the standby automatic start-up action under the participation of new energy and improving the test efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of power supply for electric power systems, and in particular to a standby automatic switching test method, a device and a standby automatic switching tester. Background Art

[0002] Due to the increasing demand for power supply reliability, multiple power supply lines with two or more circuits are now equipped with automatic backup line switching devices to improve reliability. Automatic backup line switching devices are referred to as automatic backup switching devices. For example, the emergency lighting system is a power supply system with automatic backup switching. Relay contactors are typically used to control the battery automatic backup switching. When the main power supply fails, the control contacts of the relay contactor control system automatically close, automatically connecting the battery to the emergency lighting circuit. Many factories and enterprises also frequently use automatic backup switching control for backup diesel generator sets. When the main power grid loses power, the automatic backup switching control system automatically controls the diesel generator set to start, close, and automatically start operation. Therefore, in the process of power production and supply, testing automatic backup switching devices is extremely important to ensure power supply reliability and minimize the impact of power outages on users.

[0003] At present, the automatic test instrument for standby power supply cannot adjust the output curve. The input and output terminals are fixed and cannot be adjusted during the test. The disconnection and wiring operation is complicated and the functions are not perfect. In addition, the automatic test instrument for standby power supply is large in size, the instrument is relatively bulky, and it is inconvenient to carry, which cannot meet the on-site needs well.

[0004] The shortcomings of the automatic start-up protection tester will increase the workload of equipment management, inspection and evaluation of the automatic start-up protection device, reduce work efficiency, and fail to timely discover related problems of the automatic start-up protection device, causing the automatic start-up protection to refuse to operate or malfunction, thereby leading to further expansion of the accident. Therefore, effective testing of the automatic start-up protection device is becoming increasingly important. Summary of the Invention

[0005] The present invention provides a standby automatic start-up test method, device and standby automatic start-up test instrument to solve the problems that the input and output terminals are fixed and cannot be adjusted during the test, the disconnection and wiring operation is complicated, and the problem that the new standby automatic start-up action logic under the participation of new energy cannot be tested due to the inability to adjust the output curve.

[0006] According to one aspect of the present invention, a method for self-testing is provided, the method comprising:

[0007] Receiving an output curve adjustment instruction from a user, and obtaining output adjustment information in the output curve adjustment instruction;

[0008] Based on a digital-to-analog conversion method, an output analog signal is determined according to the output adjustment information; wherein the analog signal includes an analog voltage signal or an analog current signal;

[0009] The actual output signal corresponding to the output analog signal is output to the standby automatic start-up device through the adjustable power supply to obtain the test result of the standby automatic start-up device under the output curve.

[0010] According to another aspect of the present invention, there is provided a self-testing device, the device comprising:

[0011] a first signal determination module, configured to receive an output curve adjustment instruction from a user and obtain output adjustment information in the output curve adjustment instruction;

[0012] a second signal determination module, configured to determine an output analog signal according to the output adjustment information based on a digital-to-analog conversion method; wherein the analog signal includes an analog voltage signal or an analog current signal;

[0013] The test result determination module is used to output the actual output signal corresponding to the output analog signal to the standby automatic transfer device through an adjustable power supply to obtain the test result of the standby automatic transfer device under the output curve.

[0014] According to another aspect of the present invention, a standby automatic start-up tester is provided, which includes a central processing unit and an operation panel, a power module and a network module connected to the central processing unit; wherein the central processing unit executes the standby automatic start-up test method described in any embodiment of the present invention.

[0015] The technical solution of the embodiment of the present invention receives the output curve adjustment instruction from the user, obtains the output adjustment information in the output curve adjustment instruction; then based on the digital-to-analog conversion method, determines the output analog signal according to the output adjustment information; wherein the analog signal includes an analog voltage signal or an analog current signal; finally, the actual output signal corresponding to the output analog signal is output to the standby automatic start-up device through an adjustable power supply to obtain the test result of the standby automatic start-up device under the output curve, thereby solving the problem that the input and output terminals are fixed and cannot be adjusted during the test, and the disconnection and wiring operation is complicated, as well as the problem that the new standby automatic start-up action logic under the participation of new energy cannot be tested due to the inability to adjust the output curve, thereby realizing the simulation of the standby automatic start-up action under the participation of new energy and improving the test efficiency.

[0016] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a flow chart of a self-test method according to the first embodiment of the present invention;

[0019] Figure 2 This is a flow chart of dynamically adjusting the output current and voltage of a standby automatic switching tester provided in an embodiment of the present invention;

[0020] Figure 3 This is a structural diagram of a self-testing device provided according to the second embodiment of the present invention;

[0021] Figure 4 2. It is a schematic diagram of a panel of a self-testing instrument provided in an embodiment of the present invention;

[0022] Figure 5 1 is a module diagram of a standby automatic tester provided according to an embodiment of the present invention;

[0023] Figure 6 1 is a signal transmission structure diagram of a standby automatic switching tester provided according to an embodiment of the present invention. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions 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 embodiments described 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 making creative efforts should fall within the scope of protection of the present invention.

[0025] It should be noted that the terms "first", "second", etc. in the description 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 numbers 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 clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0026] Example 1

[0027] Figure 1 This is a flow chart of a standby automatic start test method provided in accordance with the first embodiment of the present invention. This embodiment is applicable to the situation of standby automatic start test. The method can be executed by a standby automatic start test device. The standby automatic start test device can be implemented in the form of hardware and / or software. The standby automatic start test device can be configured in a standby automatic start test instrument. Figure 1 As shown, the method includes:

[0028] S110: Receive an output curve adjustment instruction from a user, and obtain output adjustment information in the output curve adjustment instruction.

[0029] The output curve can be used to verify whether the backup automatic start-up device is in the desired test state. The output curve can be adjusted in real time as needed. The curve adjustment command can be a command that the user selects as needed on the display interface of the backup automatic start-up tester. For example, if the backup automatic start-up tester has three bus sections with three voltage groups and three sets of variable current outputs, the user can select the required current, voltage, and terminal point commands on the display interface, and then determine the output adjustment information based on these commands.

[0030] Specifically, the user selects the required instructions in the display interface, and the central processing unit stores and processes the instructions, accurately determining the output adjustment information to facilitate further processing and analysis of the information.

[0031] S120. Based on a digital-to-analog conversion method, determine an output analog signal according to the output adjustment information; wherein the analog signal includes an analog voltage signal or an analog current signal.

[0032] Specifically, the output adjustment information is processed through digital signal processing (DSP) to determine the output analog signal. This method combines embedded technology with digital signal processing, using ARM and DSP to design a signal simulation system. This completes the design of a physical interaction logic module, simplifying operation.

[0033] S130. Outputting the actual output signal corresponding to the output analog signal to the standby automatic start-up device through the adjustable power supply to obtain a test result of the standby automatic start-up device under the output curve.

[0034] The actual output signal may be an actual current or voltage signal.

[0035] Specifically, an output curve is set on the display interface to accurately simulate the real-time magnitude of current and voltage. This is then converted into an analog signal via a DSP. An adjustable power supply is then used to output the actual output signal corresponding to the analog signal to the automatic backup device, obtaining the final test results of the automatic backup device under the output curve. This method is designed based on the characteristics and requirements of automatic backup devices in multi-power circuit substations. It utilizes a central processing unit and computer integrated logic design to quickly accept external control commands and accurately output control and status signals. Simultaneously, it rapidly performs digital conversion and logical calculations on the externally input control and status signals to obtain the final test conclusions, thereby improving the testing efficiency of relay protection devices.

[0036] In a feasible embodiment, after the actual output signal corresponding to the output analog signal is output to the backup automatic switching device through the adjustable power supply, the method further includes:

[0037] Determining a control signal to be input to the standby automatic switching device;

[0038] Determining the corresponding relationship between the current and voltage associated with the control signal for the output terminal point information of the standby automatic switching device connected to the standby automatic switching tester;

[0039] Based on the corresponding relationship between the current and the voltage associated with the control signal, the control signal is input into the standby automatic switching device through the output terminal on the standby automatic switching tester.

[0040] Optionally, the control signal includes switch open position, closed position, manual trip or protection trip.

[0041] Among them, the control signal can be changed according to the actual required signal, that is, the required control signal can be added to the display interface to improve the function of the automatic switching tester. For example, according to the design requirements of the 10kV standardized automatic switching tester of the Guangdong power grid, it adapts to the two modes of busbar automatic switching and main transformer automatic switching, can simulate the primary wiring under various operating modes of the substation and power supply system, can intuitively display and provide the automatic switching device with the electrical signals and position signals of the lines and switches under various modes, and can simulate line power failure, busbar pressure loss, any circuit breaker tripping, refusal to open, refusal to close and any main transformer failure under any main operating mode to test the various performance of the automatic switching device of the backup power supply. It is sufficient to add corresponding control signals according to the various added performances without replacing the tester.

[0042] Specifically, the backup automatic switching device is connected to the output terminal of the backup automatic switching tester, an appropriate control signal connected to the output terminal of the backup automatic switching tester is selected on the display interface, the corresponding relationship between the current and voltage associated with the control signal is determined, and the control signal is input into the backup automatic switching device through the output terminal of the backup automatic switching tester. For example, through an adjustable DC voltage source, D / A conversion, A / D conversion, and DSP processing unit, after digital conversion and logical calculation, the output terminal accurately outputs the control signal.

[0043] This technical solution controls the control signal of the output terminal on the standby automatic start-up tester and determines the corresponding relationship between the current and voltage associated with the control signal, thereby accurately inputting the control signal into the standby automatic start-up device to ensure the accuracy of the information. In addition, the highly integrated controller module and interactive logic design greatly simplify the operation difficulty and reduce the size, weight and cost of the device.

[0044] In a feasible embodiment, after inputting the control signal into the standby automatic start device through the output terminal on the standby automatic start tester, the method further includes:

[0045] Receiving a first modification instruction of the standby automatic start-up device; wherein the first modification instruction includes a standby automatic start-up device modification instruction or a control signal modification instruction;

[0046] determining an update control signal according to the change instruction;

[0047] Maintaining unchanged the output terminal point information of the standby automatic switching device connected to the standby automatic switching tester, and determining an updated corresponding relationship between the current and voltage associated with the update control signal for the output terminal point information;

[0048] Based on the updated corresponding relationship between the current and the voltage associated with the updated control signal, the updated control signal is input into the standby automatic start device through the output terminal on the standby automatic start tester.

[0049] The standby automatic start-up device change command can be used to select a different standby automatic start-up device for testing. This requires simply replacing the wiring terminals on the standby automatic start-up device, without changing the output terminals on the standby automatic start-up tester. The control signal change command can be used to change the corresponding control signal if the test requirements for the standby automatic start-up device change.

[0050] Specifically, the first change instruction of the standby automatic start-up device is selected on the display interface, and the update control signal is determined according to the first change instruction. However, the output terminal point information of the standby automatic start-up device connected to the standby automatic start-up tester remains unchanged. It is only necessary to select the update control signal of the output terminal point on the display interface, and determine the update correspondence between the current and voltage associated with the update control signal. Based on the update correspondence between the current and voltage associated with the update control signal, the update control signal is input into the standby automatic start-up device through the output terminal on the standby automatic start-up tester.

[0051] This technical solution can complete the update of the control signal by adaptively adjusting the control signal of the output terminal without the complicated process of disassembling the line, and can input the updated control signal into the standby automatic start device without changing the output terminal on the standby automatic start tester, thereby greatly improving the efficiency of the experiment.

[0052] In a feasible embodiment, after the actual output signal corresponding to the output analog signal is output to the backup automatic switching device through the adjustable power supply, the method further includes:

[0053] Determine the status signal output by the standby automatic transfer device;

[0054] Determining a corresponding relationship between current and voltage associated with the status signal for input terminal point information of the standby automatic switching device connected to the standby automatic switching tester;

[0055] Based on the correspondence between the current and voltage associated with the status signal, the status signal is input into the standby automatic start-up tester through the input terminal on the standby automatic start-up tester, so as to obtain the status signal display result corresponding to the standby automatic start-up device under the control signal on the standby automatic start-up tester.

[0056] Optionally, the status signal includes a tripping output signal, a closing output signal or a load shedding output signal.

[0057] The status information may be a signal fed back based on the control signal and current and voltage signals inputted from the backup automatic switching device by the backup automatic switching tester. The status information of the input terminal point of the backup automatic switching tester may be adaptively adjusted and is not specifically limited.

[0058] Specifically, the standby automatic start-up device is connected to the input terminal on the standby automatic start-up test instrument, and the correspondence between the current and voltage associated with the status signal at the input terminal point is determined based on the status signal output by the standby automatic start-up device. Then, based on the correspondence between the current and voltage associated with the status signal, the status signal is input into the standby automatic start-up test instrument through the input terminal on the standby automatic start-up test instrument to obtain the status signal display result fed back by the standby automatic start-up device under the control signal.

[0059] This technical solution determines the status signal fed back by the control signal and current and voltage signal inputted into the standby automatic start-up device by the standby automatic start-up tester, inputs the corresponding relationship between the current and voltage associated with the status signal into the standby automatic start-up tester through the input terminal on the standby automatic start-up tester, and then obtains the status signal display result of the standby automatic start-up device, thereby realizing accurate reception of the external input status signal and rapid digital conversion and logical calculation of the external input status signal, which is more conducive to obtaining the final test conclusion and improving the test efficiency.

[0060] In a feasible embodiment, after inputting the control signal into the standby automatic start tester through an input terminal on the standby automatic start tester, the method further includes:

[0061] receiving a second change instruction for the standby automatic start-up device; wherein the second change instruction includes a standby automatic start-up device change instruction or a control signal change instruction;

[0062] determining an update status signal according to the second change instruction;

[0063] Maintaining unchanged the input terminal point information of the standby automatic start device connected to the standby automatic start tester, and determining an updated corresponding relationship between the current and voltage associated with the update status signal for the input terminal point information;

[0064] Based on the updated correspondence between the current and voltage associated with the updated status signal, the updated status signal is input into the standby automatic start-up tester through the input terminal on the standby automatic start-up tester, so as to obtain the updated status signal display result corresponding to the standby automatic start-up device under the updated control signal on the standby automatic start-up tester.

[0065] Specifically, according to the second change instruction on the display interface of the standby automatic start-up test instrument, the update status signal under the second change instruction is determined, the update correspondence between the current and voltage associated with the update status signal corresponding to the input terminal point on the standby automatic start-up test instrument is determined, and then the update status signal is input into the standby automatic start-up test instrument through the input terminal on the standby automatic start-up test instrument, and then the update status signal display result is determined.

[0066] This technical solution can complete the update of the status signal by adaptively adjusting the status signal of the input terminal without the complicated process of disassembling the line, and can input the updated status signal into the standby automatic test instrument without changing the input terminal on the standby automatic test instrument, thereby greatly improving the efficiency of the experiment.

[0067] Optional, Figure 2 This is a flow chart of the automatic switching tester dynamically adjusting the output current and voltage according to an embodiment of the present invention. Figure 2As shown, when the standby automatic start tester detects the standby automatic start device, it is first initialized, and then sampling and switch status query are performed, and the output status and instructions are checked on the display interface. If the preset time is reached, the next state and instruction are output, otherwise the output status and instruction are continued to be checked; after the next state and instruction are detected, it is checked whether the current state has reached the final state. If it has reached it, all instruction information is completed and the required information is output, otherwise it returns to the output of the next state and instruction until the current state reaches the final state.

[0068] The technical solution of the embodiment of the present invention receives the output curve adjustment instruction from the user, obtains the output adjustment information in the output curve adjustment instruction, and then determines the output analog signal based on the output adjustment information based on the digital-to-analog conversion method. Finally, the actual output signal corresponding to the output analog signal is output to the standby automatic start-up device through the adjustable power supply to obtain the test result of the standby automatic start-up device under the output curve, which solves the problem that the input and output terminals are fixed and cannot be adjusted during the test, and the wiring operation is complicated, as well as the problem that the new standby automatic start-up action logic under the participation of new energy cannot be tested due to the inability to adjust the output curve, thereby realizing the simulation of the standby automatic start-up action under the participation of new energy. In addition, this technical solution is suitable for both busbar standby automatic start-up and main transformer standby automatic start-up, and can simulate the primary wiring under various operating modes of the substation and power supply system, and can intuitively display and provide the electrical signals and position signals of the lines and switches under various modes to the standby automatic start-up device, and can simulate line power failure, busbar pressure loss, any circuit breaker tripping, refusal to open, refusal to close and any main transformer failure under any main operating mode to test the various performances of the standby power automatic start-up device. In view of the characteristics and requirements of the automatic switching power supply of multi-power circuit substation, the central processing unit and computer integrated logic design are used to quickly accept external control instructions, accurately output control signals and status signals to the outside, and quickly perform digital conversion and logic calculation on the external input control and status signals to obtain the final test conclusion, thereby improving the test efficiency.

[0069] Example 2

[0070] Figure 3 This is a structural diagram of a self-test device provided according to the second embodiment of the present invention. Figure 3 As shown, the device includes:

[0071] The first signal determining module 210 is configured to receive an output curve adjustment instruction from a user and obtain output adjustment information in the output curve adjustment instruction.

[0072] The second signal determination module 220 is configured to determine an output analog signal according to the output adjustment information based on a digital-to-analog conversion method; wherein the analog signal includes an analog voltage signal or an analog current signal.

[0073] The test result determination module 230 is configured to output the actual output signal corresponding to the output analog signal to the standby automatic start-up device through an adjustable power supply, so as to obtain the test result of the standby automatic start-up device under the output curve.

[0074] Optionally, the test result determination module includes an output terminal determination unit, specifically configured to:

[0075] Determining a control signal to be input to the standby automatic switching device;

[0076] Determining the corresponding relationship between the current and voltage associated with the control signal for the output terminal point information of the standby automatic switching device connected to the standby automatic switching tester;

[0077] Based on the corresponding relationship between the current and the voltage associated with the control signal, the control signal is input into the standby automatic switching device through the output terminal on the standby automatic switching tester.

[0078] Optionally, the output terminal determining unit further includes a first updating unit, specifically configured to:

[0079] Receiving a first modification instruction of the standby automatic start-up device; wherein the first modification instruction includes a standby automatic start-up device modification instruction or a control signal modification instruction;

[0080] determining an update control signal according to the change instruction;

[0081] Maintaining unchanged the output terminal point information of the standby automatic switching device connected to the standby automatic switching tester, and determining an updated corresponding relationship between the current and voltage associated with the update control signal for the output terminal point information;

[0082] Based on the updated corresponding relationship between the current and the voltage associated with the updated control signal, the updated control signal is input into the standby automatic start device through the output terminal on the standby automatic start tester.

[0083] The control signal includes switch open position, closed position, manual trip or protection trip.

[0084] Optionally, the test result determination module includes an input terminal determination unit, specifically for

[0085] Determine the status signal output by the standby automatic transfer device;

[0086] Determining a corresponding relationship between current and voltage associated with the status signal for input terminal point information of the standby automatic switching device connected to the standby automatic switching tester;

[0087] Based on the correspondence between the current and voltage associated with the status signal, the control signal is input into the standby automatic start-up tester through the input terminal on the standby automatic start-up tester, so as to obtain the status signal display result corresponding to the standby automatic start-up device under the control signal on the standby automatic start-up tester.

[0088] Optionally, the input terminal determining unit further includes a second updating unit, specifically configured to:

[0089] receiving a second change instruction for the standby automatic start-up device; wherein the second change instruction includes a standby automatic start-up device change instruction or a control signal change instruction;

[0090] determining an update status signal according to the second change instruction;

[0091] Maintaining unchanged the input terminal point information of the standby automatic start device connected to the standby automatic start tester, and determining an updated corresponding relationship between the current and voltage associated with the update status signal for the input terminal point information;

[0092] Based on the updated correspondence between the current and voltage associated with the update control signal, the update control signal is input into the standby automatic start-up tester through the input terminal on the standby automatic start-up tester, so as to obtain the updated status signal display result corresponding to the standby automatic start-up device under the update control signal on the standby automatic start-up tester.

[0093] The status signal includes a tripping output signal, a closing output signal or a load shedding output signal.

[0094] The automatic start-up test device provided in the embodiment of the present invention can execute the automatic start-up test method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0095] The acquisition, storage, use, and processing of data in the technical solution of this application comply with the relevant provisions of national laws and regulations and do not violate public order and good morals.

[0096] Example 3

[0097] Figure 4 Schematic diagram of the panel of the automatic tester provided according to an embodiment of the present invention. Figure 4As shown, 1 is the voltage output interface, 2 is the current output interface, which outputs current and voltage to the current and voltage terminals of the standby automatic switching terminal block, 3 and 4 are respectively connected to the relevant input and output signals of the standby automatic switching device terminal block, 5 and 6 are the relevant control and display interfaces of the standby automatic switching tester, of which 1 and 2 respectively contain 3 groups of independent voltage and current outputs, and the AC signal output circuit includes an adjustable voltage and current source, a D / A and a DSP processing unit, so that the AC current sampling of the standby automatic switching device is synchronously sensed. At the same time, the output curve is set through the operation panel, and the output current and voltage are dynamically adjusted in real time to simulate the bus current and voltage output under the participation of new energy, and to carry out a new type of standby automatic switching test under the participation of new energy. The specific process is: 3 is the adjustable input terminal empty contact area, which contains 20 groups of contacts, which can be defined as tripping output, closing output, Output, load shedding output, and the corresponding relationship with current and voltage can be defined according to actual conditions; 4 is the adaptive output terminal area, which contains 20 groups of switch open position, closed position, manual trip, and protection trip that can be arbitrarily defined. The terminals are set through the operation panel, which greatly reduces the workload of disconnecting and wiring; the LCD panel 5 and the operation button 6 provide human-computer interaction function, and the current wiring method can be flexibly adjusted on the menu page, such as bridge wiring, segment wiring, transformer wiring, etc., and the wiring method used and related actions and status signals are intuitively displayed on the LCD screen, which makes it convenient to input electrical and position signals of lines and switches under various modes to the standby automatic transfer device. It has the function of connecting to a computer and then operating directly on the computer. After the relevant settings, the test main interface can be conveniently entered through the computer monitor.

[0098] Figure 5 1 is a module diagram of a self-testing instrument according to an embodiment of the present invention. Figure 5 As shown, the device includes a central processing unit, a calculator, a liquid crystal display, an adjustable voltage and current source, input and output contacts and other modules. Each module has relative independence, which improves the reliability and integration of the tester. Since the tester uses analog signals for judgment, the tester does not need to have built-in analog circuit breakers, auxiliary relays and other conventional modules, which reduces the size and weight of the device and reduces costs.

[0099] Figure 6 1 is a signal transmission structure diagram of a standby automatic tester according to an embodiment of the present invention. Figure 6As shown, the device utilizes a dual-core CPU architecture, integrating a Cortex-A8 ARM core and a C674x DSP core. It boasts a high clock speed and a rich set of peripheral functions. The ARM core is responsible for the human-computer interface, timing, and internal mass storage, while the DSP core handles AC signal acquisition, algorithm processing, and digital input and output. The AC signal output circuit includes an adjustable voltage and current source, a D / A converter, and a DSP processing unit, enabling real-time dynamic adjustment of the output current and voltage. Through the adjustable DC voltage source, D / A converter, A / D converter, and DSP processing unit, control and status signals can be accurately output through the output terminals. Furthermore, external control and status signals are rapidly acquired through open input contacts. Final experimental conclusions are drawn through digital conversion and logical calculations.

Claims

1. A self-test method, characterized in that: include: Receiving an output curve adjustment instruction from a user, and obtaining output adjustment information in the output curve adjustment instruction; Based on a digital-to-analog conversion method, an output analog signal is determined according to the output adjustment information; wherein the output analog signal includes an analog voltage signal or an analog current signal; Outputting the actual output signal corresponding to the output analog signal to the standby automatic start-up device through an adjustable power supply to obtain a test result of the standby automatic start-up device under the output curve; After the actual output signal corresponding to the output analog signal is output to the standby automatic switching device through the adjustable power supply, the method further includes: Determining a control signal to be input to the standby automatic switching device; Determining the corresponding relationship between the current and voltage associated with the control signal for the output terminal point information of the standby automatic switching device connected to the standby automatic switching tester; Based on the corresponding relationship between the current and the voltage associated with the control signal, the control signal is input into the standby automatic switching device through the output terminal on the standby automatic switching tester.

2. The method according to claim 1, characterized in that After inputting the control signal into the standby automatic start device through the output terminal on the standby automatic start tester, the method further includes: Receiving a first modification instruction of the standby automatic start-up device; wherein the first modification instruction includes a standby automatic start-up device modification instruction or a control signal modification instruction; determining an update control signal according to the first change instruction; Maintaining unchanged the output terminal point information of the standby automatic switching device connected to the standby automatic switching tester, and determining an updated corresponding relationship between the current and voltage associated with the update control signal for the output terminal point information; Based on the updated corresponding relationship between the current and the voltage associated with the updated control signal, the updated control signal is input into the standby automatic start device through the output terminal on the standby automatic start tester.

3. The method according to claim 2, characterized in that The control signal includes switch open position, closed position, manual trip or protection trip.

4. The method according to claim 2, characterized in that After the actual output signal corresponding to the output analog signal is output to the standby automatic switching device through the adjustable power supply, the method further includes: Determine the status signal output by the standby automatic transfer device; Determining a corresponding relationship between current and voltage associated with the status signal for input terminal point information of the standby automatic switching device connected to the standby automatic switching tester; Based on the correspondence between the current and voltage associated with the status signal, the status signal is input into the standby automatic start-up tester through the input terminal on the standby automatic start-up tester, so as to obtain the status signal display result corresponding to the standby automatic start-up device under the control signal on the standby automatic start-up tester.

5. The method according to claim 4, characterized in that After inputting the control signal into the standby automatic start tester through an input terminal on the standby automatic start tester, the method further includes: receiving a second change instruction for the standby automatic start-up device; wherein the second change instruction includes a standby automatic start-up device change instruction or a control signal change instruction; determining an update status signal according to the second change instruction; Maintaining unchanged the input terminal point information of the standby automatic start device connected to the standby automatic start tester, and determining an updated corresponding relationship between the current and voltage associated with the update status signal for the input terminal point information; Based on the updated correspondence between the current and voltage associated with the updated status signal, the updated status signal is input into the standby automatic start-up tester through the input terminal on the standby automatic start-up tester, so as to obtain the updated status signal display result corresponding to the standby automatic start-up device under the updated control signal on the standby automatic start-up tester.

6. The method according to claim 4 or 5, characterized in that The status signal includes a trip output signal, a closing output signal or a load shedding output signal.

7. A self-testing device, characterized in that: include: a first signal determination module, configured to receive an output curve adjustment instruction from a user and obtain output adjustment information in the output curve adjustment instruction; a second signal determination module, configured to determine an output analog signal according to the output adjustment information based on a digital-to-analog conversion method; wherein the output analog signal includes an analog voltage signal or an analog current signal; a test result determination module, configured to output an actual output signal corresponding to the output analog signal to the standby automatic start-up device via an adjustable power supply, so as to obtain a test result of the standby automatic start-up device under an output curve; The test result determination module includes an output terminal determination unit, which is specifically used to: Determining a control signal to be input to the standby automatic switching device; Determining the corresponding relationship between the current and voltage associated with the control signal for the output terminal point information of the standby automatic switching device connected to the standby automatic switching tester; Based on the corresponding relationship between the current and the voltage associated with the control signal, the control signal is input into the standby automatic switching device through the output terminal on the standby automatic switching tester.

8. A self-testing instrument, characterized in that: The automatic start-up tester includes a central processing unit and an operation panel, a power module and a network module connected to the central processing unit; wherein the central processing unit executes the automatic start-up test method according to any one of claims 1 to 6.

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