Regional power supply and consumption coordinated regulation system and method

Abstract

The invention provides a regional power supply and consumption coordinated regulation system and method, and the system comprises power monitoring and power supply and consumption regulation devices which are arranged in a power distribution cabinet at a high-voltage power distribution side and in power distribution cabinets of transformer substations at a regional power supply side, and each power monitoring and power supply and consumption regulation device comprises a mutual inductor, the sleeve sleeves the outer side of a power line in the power distribution cabinet; the power monitoring and power supply and utilization adjusting module is matched with the mutual inductor to monitor the current operation power of the power distribution cabinet and analyze the power state of the power distribution cabinet on the high-voltage power distribution side and the capacity state of a transformer of a transformer substation on the regional power supply side, and in the reverse power state, the transformer substation energy storage module and the photovoltaic module are adjusted until the photovoltaic module is not in the reverse power state; according to the power distribution cabinet, a power monitoring and power supply and utilization adjusting device can be conveniently arranged in the power distribution cabinet, synchronous adjustment of the photovoltaic module and the energy storage module can be achieved, and the problem of capacity overcapacity of the transformer can be solved.

Description

Technical Field

[0001] This invention relates to the field of power supply and utilization technology, and in particular to a regional power supply and utilization coordinated regulation system and method. Background Technology

[0002] Distributed photovoltaic (PV) power and commercial energy storage are increasingly used in factories and industrial parks. They can utilize peak-valley electricity pricing to smooth out low-price periods, saving on electricity costs. Charging occurs during off-peak hours and discharging during peak hours, leveraging price differences to reduce electricity costs and generate revenue. They can also serve as backup power, providing backup power during grid outages to ensure normal factory operation, improve power supply reliability, and reduce losses from power outages. Commercial energy storage systems used in factories and industrial parks are deployed in different load areas as needed and require coordination with existing power systems and other equipment. Improper coordination may affect the overall stability of the power supply.

[0003] The invention disclosed in CN118040730A proposes a dynamic adaptive control method for reverse power protection in energy storage systems. By dynamically tracking the power at the inlet gate, from setting the reverse power control threshold to real-time tracking, everything changes dynamically, adapting to diverse user scenarios and forming customized solutions. This avoids difficult and rigid manual settings, dynamically adjusting the discharge limits of the energy storage system, greatly reducing the probability of power outages due to reverse power and increasing the return on investment for the energy storage system. Currently, photovoltaic modules and energy storage modules are often deployed together in many scenarios, but this invention mainly focuses on the regulation of energy storage; the photovoltaic modules and energy storage modules cannot be regulated synchronously.

[0004] The invention disclosed in CN103185846B proposes a reverse current detection method, an anti-reverse current control method, a device, and an anti-reverse current system. By calculating the time difference between the voltage zero-crossing point and the current zero-crossing point at the grid connection point, reverse current can be quickly detected. After deploying energy storage modules, excessive charging power of the energy storage modules may lead to overcapacity of the substation transformer. However, this invention's reverse current control method cannot solve the problem of substation transformer overcapacity.

[0005] In addition, existing regulating devices require specially configured current lines to facilitate monitoring of transformers for monitoring substation voltage and current. They are large in size, require a separate installation location, are usually installed outside the distribution cabinet, are complex to install, and cannot be installed inside the distribution cabinet. Summary of the Invention

[0006] To address the technical problems in existing technologies, such as the inability to synchronize photovoltaic modules and energy storage modules, the inability to resolve transformer overcapacity issues, and the inconvenience of installation in distribution cabinets, this invention provides a regional power supply and consumption coordinated regulation system and method.

[0007] The present invention adopts the following technical solution.

[0008] A first aspect of the present invention provides a regional power supply and consumption coordinated regulation system, including power monitoring and power supply and consumption regulation devices installed inside the distribution cabinet on the high-voltage distribution side and inside the distribution cabinets of each substation on the regional power supply side, wherein the power monitoring and power supply and consumption regulation devices include:

[0009] A current transformer is installed on the outside of the power line inside the distribution cabinet. The current transformer is used to convert the voltage or current of the power line of the distribution cabinet.

[0010] The power monitoring and power supply regulation module is connected to an instrument transformer. The module and transformer work together to monitor the current operating power of the distribution cabinet and analyze the power status of the distribution cabinet on the high-voltage distribution side and the capacity status of the transformer in the substation on the regional power supply side. When the distribution cabinet on the high-voltage distribution side is in a reverse power state, the module adjusts the current charging and discharging power and charging and discharging status of the substation energy storage module, and adjusts the current power generation of the photovoltaic module until the distribution cabinet on the high-voltage distribution side is no longer in a reverse power state. When the transformer in the substation on the regional power supply side is in a capacity over-capacity state, the module adjusts the current charging and discharging power and charging and discharging status of the energy storage module until the transformer is no longer in a capacity over-capacity state.

[0011] Preferably, the current transformer is horizontally mounted on the vertical section of the power supply line inside the distribution cabinet.

[0012] Preferably, the power monitoring and power supply regulation device further includes a housing, which is located on the lower side of the disconnect switch inside the distribution cabinet, and the current transformer and the power monitoring and power supply regulation module are all located inside the housing.

[0013] Preferably, the power monitoring and power supply regulation module includes a current monitoring unit, a voltage monitoring unit, a power monitoring unit, and a data analysis and processing unit;

[0014] Both the current monitoring unit and the voltage monitoring unit are connected to the current transformer. The current monitoring unit is used to cooperate with the current transformer to monitor the current data of the power supply line of the distribution cabinet, and the voltage monitoring unit is used to cooperate with the current transformer to monitor the current voltage data of the power supply line.

[0015] The power monitoring unit is connected to the current monitoring unit, the voltage monitoring unit, and the data analysis and processing unit. The power monitoring unit is used to receive current current data and current voltage data and obtain the current operating power based on the current current data and current voltage data.

[0016] The data analysis and processing unit is used to analyze whether the distribution cabinet on the high-voltage distribution side is in reverse power state and whether the transformer on the regional power supply side substation is in overcapacity state based on the current operating power. It also monitors and adjusts the current charging and discharging power and current charging and discharging state of the substation energy storage module and the current power generation of the photovoltaic module until the distribution cabinet on the high-voltage distribution side is no longer in reverse power state or the transformer is no longer in overcapacity state.

[0017] Preferably, when the power monitoring and power supply regulation module analyzes that the distribution cabinet on the high-voltage distribution side is in a reverse power state, it sequentially adjusts the energy storage module and photovoltaic module of each substation in order of increasing operating power of the distribution cabinet on the regional power supply side until the distribution cabinet on the high-voltage distribution side is no longer in a reverse power state.

[0018] Preferably, when the power monitoring and power supply regulation module analyzes that the distribution cabinet on the high-voltage distribution side is in an inverse power state, the strategy for adjusting the current charging and discharging power and charging and discharging state of the substation energy storage module, and adjusting the current power generation of the photovoltaic module until it is no longer in an inverse power state, is as follows:

[0019] When the power monitoring and power supply regulation module analyzes that the distribution cabinet on the high-voltage distribution side is in reverse power state, it calculates the power difference between the set operating power and the current operating power of the distribution cabinet on the high-voltage distribution side.

[0020] If the power monitoring and power supply regulation module detects that the energy storage module is in a discharging state, it compares the current discharge power of the energy storage module with the power difference. If the current discharge power of the energy storage module is greater than or equal to the power difference, the current discharge power of the energy storage module is reduced by the power difference. If the current discharge power of the energy storage module is less than the power difference, it compares the sum of the current discharge power of the energy storage module and the maximum charging power with the power difference. If the sum of the current discharge power of the energy storage module and the maximum charging power is greater than or equal to the power difference, the energy storage module is adjusted from a discharging state to a charging state, and the current charging power of the energy storage module is adjusted to the first difference between the power difference and the current discharge power. If the sum of the current discharge power of the energy storage module and the maximum charging power is less than the power difference, it compares the current discharge power of the energy storage module with the power difference. The sum of the current discharge power of the energy storage module, the maximum charging power, and the current power generation of the photovoltaic module is compared with the power difference. If the sum of the current discharge power of the energy storage module, the maximum charging power, and the current power generation of the photovoltaic module is greater than or equal to the power difference, the energy storage module is adjusted from the discharge state to the charging state, and the current charging power of the energy storage module is adjusted to the maximum charging power. At the same time, the power generation of the photovoltaic module is adjusted to the second difference between the power difference and the current discharge power and the maximum charging power of the energy storage module. If the sum of the current discharge power of the energy storage module, the maximum charging power, and the current power generation of the photovoltaic module is less than the power difference, the energy storage module is adjusted from the discharge state to the charging state, and the current charging power of the energy storage module is adjusted to the maximum charging power. At the same time, the photovoltaic module stops generating electricity.

[0021] Preferably, when the power monitoring and power supply regulation module analyzes that the distribution cabinet on the high-voltage distribution side is in an inverse power state, the strategy for adjusting the current charging and discharging power and charging and discharging state of the substation energy storage module, and adjusting the current power generation of the photovoltaic module until it is no longer in an inverse power state, is as follows:

[0022] If the power monitoring and power supply regulation module detects that the energy storage module is in a charging state, it compares the third difference between the maximum charging power of the energy storage module and the current charging power with the power difference. If the third difference is greater than or equal to the power difference, the charging power is increased by the power difference. If the third difference is less than the power difference, it compares the sum of the third difference and the current power generation of the photovoltaic module with the power difference. If the sum of the third difference and the current power generation of the photovoltaic module is greater than or equal to the power difference, the charging power of the energy storage module is adjusted to the maximum charging power, and the current power generation of the photovoltaic module is decreased by the fourth difference between the power difference and the third difference. If the sum of the third difference and the current power generation of the photovoltaic module is less than the power difference, the charging power of the energy storage module is adjusted to the maximum charging power, and the photovoltaic module stops generating electricity.

[0023] Preferably, when the power monitoring and power supply regulation module analyzes that the distribution cabinet on the high-voltage distribution side is in an inverse power state, the strategy for adjusting the current charging and discharging power and charging and discharging state of the substation energy storage module, and adjusting the current power generation of the photovoltaic module until it is no longer in an inverse power state, is as follows:

[0024] If the power monitoring and power supply regulation module detects that the energy storage module is in a state of neither charging nor discharging, it compares the current power generation of the photovoltaic module with the power difference. If the current power generation of the photovoltaic module is greater than or equal to the power difference, the current power generation of the photovoltaic module is reduced by the value of the power difference. If the current power generation of the photovoltaic module is less than the power difference, the photovoltaic module stops generating electricity.

[0025] Preferably, when the power monitoring and power supply regulation module analyzes that the transformer of the substation on the regional power supply side is in an overcapacity state, the strategy for adjusting the current charging and discharging power and charging and discharging state of the energy storage module until it is no longer in an overcapacity state is as follows:

[0026] When the power monitoring and power supply regulation module analyzes that the transformer of the substation on the regional power supply side is in an overcapacity state, it calculates the capacity difference between the current operating power of the substation distribution cabinet and the set power capacity of the transformer.

[0027] If the power monitoring and power supply regulation module detects that the energy storage module is in a charging state, it compares the current charging power of the energy storage module with the capacity difference. If the current charging power of the energy storage module is greater than or equal to the capacity difference, the charging power is reduced by the fifth difference between the current charging power of the energy storage module and the capacity difference. If the current charging power of the energy storage module is less than the capacity difference, the energy storage module is adjusted to a discharging state.

[0028] If the power monitoring and power supply regulation module detects that the energy storage module is not in a charging state, then the energy storage module will not be regulated.

[0029] Preferably, the power monitoring and power supply regulation module first adjusts the current charging and discharging power and charging and discharging state of the substation energy storage module, and then adjusts the current power generation of the photovoltaic module until the distribution cabinet on the high-voltage distribution side is no longer in reverse power state. Then, it adjusts the current charging and discharging power and charging and discharging state of the energy storage module until the transformer of the substation on the regional power supply side is no longer in overcapacity state.

[0030] A second aspect of the present invention provides a method for coordinated regulation of regional power supply and consumption, implemented based on the coordinated regulation system for regional power supply and consumption provided in the first aspect of the present invention, the method comprising the following steps:

[0031] Power monitoring and power supply regulation devices are installed inside the distribution cabinets on the high-voltage distribution side and in the distribution cabinets of each substation on the regional power supply side. When the distribution cabinet on the high-voltage distribution side is in reverse power state, the current charging and discharging power and charging and discharging state of the energy storage module in the substation are adjusted, and the current power generation of the photovoltaic module is adjusted until it is no longer in reverse power state. When the transformer of the substation on the regional power supply side is in overcapacity state, the current charging and discharging power and charging and discharging state of the energy storage module are adjusted until it is no longer in overcapacity state.

[0032] A third aspect of the present invention provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor.

[0033] When the computer program is loaded into the processor, it implements the regional power supply and consumption coordinated regulation method provided in the second aspect of the present invention.

[0034] A storage medium storing a computer program.

[0035] When the computer program is executed by the processor, it implements the regional power supply and consumption coordinated regulation method provided in the second aspect of the present invention.

[0036] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0037] This invention directly integrates the current transformer onto the outside of the power supply line inside the distribution cabinet, eliminating the need to adjust the original power supply line layout of the distribution cabinet or to configure a separate power supply line for the current transformer. This results in a smaller overall size, facilitating the installation of power monitoring and power supply regulation devices inside the distribution cabinets on the high-voltage distribution side and in the distribution cabinets of each substation on the regional power supply side. When the distribution cabinet on the high-voltage distribution side is in a reverse power state, the current charging and discharging power and charging and discharging state of the substation's energy storage module are adjusted, as is the current power generation power of the photovoltaic module, until it is no longer in a reverse power state, achieving synchronous regulation of the photovoltaic module and the energy storage module. When the transformer in the substation on the regional power supply side is in a capacity over-capacity state, the current charging and discharging power and charging and discharging state of the energy storage module are adjusted until it is no longer in a capacity over-capacity state, thereby solving the problem of transformer capacity over-capacity. Attached Figure Description

[0038] Figure 1 This is an architecture diagram of a self-powered air conditioning component temperature value acquisition system according to the present invention;

[0039] Figure 2 This is a circuit block diagram of the power monitoring and power supply regulation module of the present invention;

[0040] Figure 3 This is a flowchart illustrating the adjustment process of the present invention.

[0041] 1. Current transformer; 2. Energy storage module; 3. Photovoltaic module; 4. Power monitoring and power supply regulation device; 5. Current monitoring unit; 6. Voltage monitoring unit; 7. Power monitoring unit; 8. Data analysis and processing unit; 9. Communication interface. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this invention. The embodiments described in this application are merely some embodiments of this invention, and not all embodiments. Based on the spirit of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this invention.

[0043] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of the invention.

[0044] At the same time, it should be understood that, for ease of description, the dimensions of the various parts shown in the accompanying drawings are not drawn according to actual scale.

[0045] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0046] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0047] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0048] like Figure 1As shown, Embodiment 1 of the present invention provides a regional power supply and consumption coordinated regulation system. A distribution cabinet is configured on the high-voltage distribution side, and several substations are configured on the regional power consumption side. Each substation is equipped with a transformer for receiving power from the distribution cabinet on the high-voltage distribution side and a distribution cabinet for receiving power from the transformer. The substation distribution cabinet is connected to a photovoltaic module 3 and an energy storage module 2. This invention can reduce engineering installation, quickly achieve power regulation, and form a power joint regulation response between the regional photovoltaic module 3 and the energy storage module 2. By precisely adjusting the photovoltaic module 3 and the energy storage module 2, a rapid response is achieved, maximizing the utilization of the photovoltaic module 3 and efficiently utilizing the energy storage module 2. This solves the reverse power problem at the grid connection point and the regional power distribution overcapacity problem, achieving regional power supply and consumption balance and reliable operation. The system includes a power monitoring and power supply regulation device 4 installed inside the distribution cabinet on the high-voltage distribution side and inside the distribution cabinets of each substation on the regional power supply side. The power monitoring and power supply regulation device 4 includes:

[0049] The housing is located on the underside of the knife switch inside the distribution cabinet;

[0050] A current transformer 1 is sleeved on the outside of the power line inside the distribution cabinet and installed inside the housing. The current transformer is used to convert the voltage or current of the power line of the distribution cabinet.

[0051] The power monitoring and power supply regulation module is housed within the casing. This module, in conjunction with the current transformer 1, monitors the current operating power of the distribution cabinet and analyzes the power status of the distribution cabinet on the high-voltage distribution side and the capacity status of the transformer in the substation on the regional power supply side. When the distribution cabinet on the high-voltage distribution side is in a reverse power state, the module adjusts the current charging and discharging power and charging and discharging status of the substation energy storage module 2, and adjusts the current power generation of the photovoltaic module 3 until the distribution cabinet on the high-voltage distribution side is no longer in a reverse power state. When the transformer in the substation on the regional power supply side is in a capacity over-capacity state, the module adjusts the current charging and discharging power and charging and discharging status of the energy storage module 2 until the transformer is no longer in a capacity over-capacity state.

[0052] The power monitoring and power supply regulation device 4 on the high-voltage distribution side monitors whether the distribution cabinet on the high-voltage distribution side is in reverse power state, that is, whether there is a problem of reverse power supply to the grid, and monitors the grid connection entrance of the entire area.

[0053] The power monitoring and power supply regulation device 4 on the regional power consumption side monitors whether the transformer on the regional power consumption side is in an overcapacity state, and receives the regulation command from the power monitoring and power supply regulation device 4 on the high voltage distribution side, and monitors the current operating power of the substation.

[0054] Preferably, but not restrictively, the current transformer 1 is horizontally mounted on the vertical section of the power supply line inside the distribution cabinet. The power supply line can pass directly through the current transformer 1 without the need for additional power supply line configuration. The existing power supply line of the distribution cabinet can be used directly, making it easier to connect and disconnect the power supply line, and the routing is the shortest.

[0055] like Figure 2 As shown, preferably but not limitingly, the power monitoring and power supply regulation module includes a current monitoring unit 5, a voltage monitoring unit 6, a power monitoring unit 7, and a data analysis and processing unit 8;

[0056] The current monitoring unit 5 and the voltage monitoring unit 6 are both connected to the transformer 1. The current monitoring unit 5 is used to cooperate with the transformer 1 to monitor the current current data of the power supply line of the distribution cabinet, and the voltage monitoring unit 6 is used to cooperate with the transformer 1 to monitor the current voltage data of the power supply line.

[0057] The power monitoring unit 7 is connected to the current monitoring unit 5, the voltage monitoring unit 6 and the data analysis and processing unit 8. The power monitoring unit 7 is used to receive current current data and current voltage data and obtain the current operating power based on the current current data and current voltage data.

[0058] The data analysis and processing unit 8 is used to analyze whether the distribution cabinet on the high-voltage distribution side is in reverse power state and whether the transformer on the regional power supply side substation is in overcapacity state based on the current operating power. It also monitors and adjusts the current charging and discharging power and current charging and discharging state of the substation energy storage module 2 and the current power generation of the photovoltaic module 3 until the distribution cabinet on the high-voltage distribution side is no longer in reverse power state or the transformer is no longer in overcapacity state.

[0059] Further preferred, but not limiting, the power monitoring unit 7 is also used to obtain the power based on the current current data and the current voltage data.

[0060] In a further preferred but not limiting manner, the power monitoring and power supply regulation module also includes a communication interface 9. The communication interfaces 9 of the power monitoring and power supply regulation devices 4 inside the power distribution cabinets of several substations on the regional power supply side, as well as the communication interfaces 9 of the power monitoring and power supply regulation devices 4 inside the power distribution cabinets on the high-voltage power distribution side and the communication interfaces 9 of the power monitoring and power supply regulation devices 4 inside the power distribution cabinets of each substation on the regional power supply side, are all connected by communication lines for information exchange.

[0061] Preferably, but not restrictively, when the power monitoring and power supply regulation module analyzes that the distribution cabinet on the high-voltage distribution side is in a reverse power state, it sequentially adjusts the energy storage module 2 and photovoltaic module 3 of each substation in order of increasing operating power of the distribution cabinet on the regional power supply side until the distribution cabinet on the high-voltage distribution side is no longer in a reverse power state, that is, it prioritizes adjusting the energy storage module 2 and photovoltaic module 3 of the substation with the lower operating power of the distribution cabinet.

[0062] Preferably, but not restrictively, if the power monitoring and power supply regulation module detects that the current operating power of the high-voltage distribution side switchgear is less than the set operating power, then the high-voltage distribution side switchgear is determined to be in reverse power state.

[0063] like Figure 3 As shown, preferably but not limitingly, when the power monitoring and power supply regulation module analyzes that the distribution cabinet on the high-voltage distribution side is in an inverse power state, the strategy for adjusting the current charging and discharging power and charging and discharging state of the substation energy storage module 2, and adjusting the current power generation of the photovoltaic module 3 until it is no longer in an inverse power state, is as follows:

[0064] When the power monitoring and power supply regulation module analyzes that the distribution cabinet on the high-voltage distribution side is in reverse power state, it calculates the power difference between the set operating power and the current operating power of the distribution cabinet on the high-voltage distribution side.

[0065] If the power monitoring and power supply regulation module detects that the energy storage module 2 is in a discharging state, it compares the current discharge power of the energy storage module 2 with the power difference. If the current discharge power of the energy storage module 2 is greater than or equal to the power difference, the current discharge power of the energy storage module 2 is reduced by the power difference. If the current discharge power of the energy storage module 2 is less than the power difference, it compares the sum of the current discharge power of the energy storage module 2 and the maximum charging power with the power difference. If the sum of the current discharge power of the energy storage module 2 and the maximum charging power is greater than or equal to the power difference, the energy storage module 2 is adjusted from a discharging state to a charging state, and the current charging power of the energy storage module 2 is adjusted to the first difference between the power difference and the current discharge power. If the sum of the current discharge power of the energy storage module 2 and the maximum charging power is less than the power difference, it compares the current discharge power of the energy storage module 2 with the power difference. 2. The sum of the current discharge power, the maximum charging power, and the current power generation of the photovoltaic module 3 is equal to the power difference. If the sum of the current discharge power of the energy storage module 2, the maximum charging power, and the current power generation of the photovoltaic module 3 is greater than or equal to the power difference, then the energy storage module 2 is adjusted from the discharge state to the charging state, and the current charging power of the energy storage module 2 is adjusted to the maximum charging power. At the same time, the power generation of the photovoltaic module 3 is adjusted to the second difference between the power difference and the current discharge power and the maximum charging power of the energy storage module 2. If the sum of the current discharge power of the energy storage module 2, the maximum charging power, and the current power generation of the photovoltaic module 3 is less than the power difference, then the energy storage module 2 is adjusted from the discharge state to the charging state, and the current charging power of the energy storage module 2 is adjusted to the maximum charging power. At the same time, the power generation of the photovoltaic module 3 is stopped.

[0066] If the power monitoring and power supply regulation module detects that the energy storage module 2 is in a charging state, it compares the third difference between the maximum charging power of the energy storage module 2 and the current charging power with the power difference. If the third difference is greater than or equal to the power difference, the charging power is increased by the power difference. If the third difference is less than the power difference, it compares the sum of the third difference and the current power generation of the photovoltaic module 3 with the power difference. If the sum of the third difference and the current power generation of the photovoltaic module 3 is greater than or equal to the power difference, the charging power of the energy storage module 2 is adjusted to the maximum charging power, and the current power generation of the photovoltaic module 3 is reduced by the fourth difference between the power difference and the third difference. If the sum of the third difference and the current power generation of the photovoltaic module 3 is less than the power difference, the charging power of the energy storage module 2 is adjusted to the maximum charging power, and the photovoltaic module 3 stops generating electricity.

[0067] If the power monitoring and power supply regulation module detects that the energy storage module 2 is in a state of neither charging nor discharging, it compares the current power generation of the photovoltaic module 3 with the power difference. If the current power generation of the photovoltaic module 3 is greater than or equal to the power difference, the current power generation of the photovoltaic module 3 is reduced by the value of the power difference. If the current power generation of the photovoltaic module 3 is less than the power difference, the photovoltaic module 3 stops generating electricity.

[0068] This process is repeated for the next substation, adjusting the energy storage module 2 and photovoltaic module 3, until the last substation is reached.

[0069] Preferred but not restrictive, if the power monitoring and power supply regulation module detects that the current operating power of the distribution cabinet of the substation on the regional power supply side is greater than the set power capacity of the transformer, then the transformer of this substation is determined to be in an overcapacity state.

[0070] Preferably, but not restrictively, when the power monitoring and power supply regulation module analyzes that the transformer of the substation on the regional power supply side is in a state of overcapacity, the strategy for adjusting the current charging and discharging power and charging and discharging state of the energy storage module 2 until it is no longer in a state of overcapacity is as follows:

[0071] When the power monitoring and power supply regulation module analyzes that the transformer of the substation on the regional power supply side is in an overcapacity state, it calculates the capacity difference between the current operating power of the substation distribution cabinet and the set power capacity of the transformer.

[0072] If the power monitoring and power supply regulation module detects that the energy storage module 2 is in a charging state, it compares the current charging power of the energy storage module 2 with the capacity difference. If the current charging power of the energy storage module 2 is greater than or equal to the capacity difference, the charging power is reduced by the fifth difference between the current charging power of the energy storage module 2 and the capacity difference. If the current charging power of the energy storage module 2 is less than the capacity difference, the energy storage module 2 is adjusted to a discharging state.

[0073] If the power monitoring and power supply regulation module detects that the energy storage module 2 is not in a charging state, then the energy storage module 2 will not be regulated.

[0074] Preferred but not restrictive, the current charging and discharging power and charging and discharging state of the substation energy storage module 2 are first adjusted to adjust the current power generation of the photovoltaic module 3 until the distribution cabinet on the high-voltage distribution side is no longer in reverse power state. Then, the current charging and discharging power and charging and discharging state of the energy storage module 2 are adjusted until the transformer of the substation on the regional power supply side is no longer in overcapacity state.

[0075] Embodiment 2 of the present invention provides a regional power supply and consumption coordinated regulation system. Based on Embodiment 1, the substation distribution cabinet is also connected to a load. When the transformer of the regional power supply side substation is still in an overcapacity state after adjusting the energy storage module 2, the current operating power of the load is reduced by the sixth difference between the capacity difference and the charging power, so that the transformer of the regional power supply side substation is not in an overcapacity state.

[0076] Embodiment 3 of the present invention provides a method for coordinated regulation of regional power supply and consumption, based on Embodiment 1, the method comprising the following steps:

[0077] Power monitoring and power supply regulation devices 4 are installed inside the distribution cabinet on the high-voltage distribution side and inside the distribution cabinet of each substation on the regional power supply side. When the distribution cabinet on the high-voltage distribution side is in reverse power state, the current charging and discharging power and charging and discharging state of the energy storage module 2 in the substation are adjusted, and the current power generation power of the photovoltaic module 3 is adjusted until it is no longer in reverse power state. When the transformer of the substation on the regional power supply side is in overcapacity state, the current charging and discharging power and charging and discharging state of the energy storage module 2 are adjusted until it is no longer in overcapacity state.

[0078] Embodiment 4 of the present invention provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor.

[0079] When the computer program is loaded into the processor, it implements the regional power supply and consumption coordinated regulation method described in Embodiment 3 of the present invention.

[0080] Embodiment 5 of the present invention provides a storage medium storing a computer program.

[0081] When the computer program is executed by the processor, it implements the regional power supply and consumption coordinated regulation method described in Embodiment 3 of the present invention.

[0082] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0083] This invention directly integrates the current transformer onto the outside of the power supply line inside the distribution cabinet, eliminating the need to adjust the original power supply line layout of the distribution cabinet or to configure a separate power supply line for the current transformer. This results in a smaller overall size, facilitating the installation of reverse power monitoring devices and power supply regulation devices inside the distribution cabinets on the high-voltage distribution side and in the distribution cabinets of each substation on the regional power supply side. When the distribution cabinet on the high-voltage distribution side is in a reverse power state, the current charging and discharging power and charging and discharging state of the substation's energy storage module are adjusted, as is the current power generation power of the photovoltaic module, until it is no longer in a reverse power state, achieving synchronous regulation of the photovoltaic module and the energy storage module. When the transformer in the substation on the regional power supply side is in a capacity over-capacity state, the current charging and discharging power and charging and discharging state of the energy storage module are adjusted until it is no longer in a capacity over-capacity state, thereby solving the problem of transformer capacity over-capacity.

[0084] This disclosure can be a system, method, and / or computer program product. A computer program product may include a computer-readable storage medium having computer-readable program instructions loaded thereon for causing a processor to implement various aspects of this disclosure.

[0085] Computer-readable storage media can be tangible devices capable of holding and storing instructions for use by an instruction execution device. Computer-readable storage media can be, for example, but not limited to, electrical storage devices, magnetic storage devices, optical storage devices, electromagnetic storage devices, semiconductor storage devices, or any suitable combination thereof. More specific examples (a non-exhaustive list) of computer-readable storage media include: portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), static random access memory (SRAM), portable compact disc read-only memory (CD-ROM), digital multifunction disc (DVD), memory sticks, floppy disks, mechanical encoding devices, such as punch cards or recessed protrusions storing instructions thereon, and any suitable combination thereof. The computer-readable storage media used herein are not to be construed as transient signals themselves, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through waveguides or other transmission media (e.g., light pulses through fiber optic cables), or electrical signals transmitted through wires.

[0086] The computer-readable program instructions described herein can be downloaded from computer-readable storage media to various computing / processing devices, or downloaded via a network, such as the Internet, local area network, wide area network, and / or wireless network, to an external computer or external storage device. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers, and / or edge servers. A network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards them to the computer-readable storage media in the respective computing / processing device.

[0087] Computer program instructions used to perform the operations of this disclosure may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, status setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Smalltalk, C++, etc., and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The computer-readable program instructions may execute entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving a remote computer, the remote computer may be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or may be connected to an external computer (e.g., via the Internet using an Internet service provider). In some embodiments, electronic circuitry, such as programmable logic circuitry, field-programmable gate arrays (FPGAs), or programmable logic arrays (PLAs), is personalized by utilizing the status information of the computer-readable program instructions to implement various aspects of this disclosure.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the protection scope of the claims of the present invention.

Claims

1. A regional power supply and consumption coordinated regulation system, characterized in that, This includes power monitoring and power supply regulation devices installed inside the distribution cabinets on the high-voltage distribution side and inside the distribution cabinets of each substation on the regional power supply side. The power monitoring and power supply regulation devices include: A current transformer is installed on the outside of the power line inside the distribution cabinet. The current transformer is used to convert the voltage or current of the power line of the distribution cabinet. The power monitoring and power supply regulation module is connected to an instrument transformer. The module and transformer work together to monitor the current operating power of the distribution cabinet and analyze the power status of the distribution cabinet on the high-voltage distribution side and the capacity status of the transformer in the substation on the regional power supply side. When the distribution cabinet on the high-voltage distribution side is in a reverse power state, the module adjusts the current charging and discharging power and charging and discharging status of the substation energy storage module, and adjusts the current power generation of the photovoltaic module until the distribution cabinet on the high-voltage distribution side is no longer in a reverse power state. When the transformer in the substation on the regional power supply side is in a capacity over-capacity state, the module adjusts the current charging and discharging power and charging and discharging status of the energy storage module until the transformer is no longer in a capacity over-capacity state.

2. The regional power supply and consumption coordinated regulation system according to claim 1, characterized in that: The current transformer is horizontally mounted on the vertical section of the power supply line inside the distribution cabinet.

3. The regional power supply and consumption coordinated regulation system according to claim 1, characterized in that: The power monitoring and power supply regulation device also includes a housing, which is located on the lower side of the disconnect switch inside the distribution cabinet. The current transformer and the power monitoring and power supply regulation module are all located inside the housing.

4. A regional power supply and consumption coordinated regulation system according to claim 1, characterized in that: The power monitoring and power supply regulation module includes a current monitoring unit, a voltage monitoring unit, a power monitoring unit, and a data analysis and processing unit; Both the current monitoring unit and the voltage monitoring unit are connected to the current transformer. The current monitoring unit is used to cooperate with the current transformer to monitor the current data of the power supply line of the distribution cabinet, and the voltage monitoring unit is used to cooperate with the current transformer to monitor the current voltage data of the power supply line. The power monitoring unit is connected to the current monitoring unit, the voltage monitoring unit, and the data analysis and processing unit. The power monitoring unit is used to receive current current data and current voltage data and obtain the current operating power based on the current current data and current voltage data. The data analysis and processing unit is used to analyze whether the distribution cabinet on the high-voltage distribution side is in reverse power state and whether the transformer on the regional power supply side substation is in overcapacity state based on the current operating power. It also monitors and adjusts the current charging and discharging power and current charging and discharging state of the substation energy storage module and the current power generation of the photovoltaic module until the distribution cabinet on the high-voltage distribution side is no longer in reverse power state or the transformer is no longer in overcapacity state.

5. A regional power supply and consumption coordinated regulation system according to claim 1, characterized in that: When the power monitoring and power supply regulation module analyzes that the distribution cabinet on the high-voltage distribution side is in an inverse power state, it adjusts the energy storage modules and photovoltaic modules of each substation in order of increasing operating power of the distribution cabinets on the regional power supply side until the distribution cabinet on the high-voltage distribution side is no longer in an inverse power state.

6. A regional power supply and consumption coordinated regulation system according to claim 1, characterized in that: When the power monitoring and power supply regulation module analyzes that the distribution cabinet on the high-voltage distribution side is in an inverse power state, the strategy for adjusting the current charging and discharging power and charging and discharging state of the substation energy storage module, and adjusting the current power generation of the photovoltaic module until it is no longer in an inverse power state, is as follows: When the power monitoring and power supply regulation module analyzes that the distribution cabinet on the high-voltage distribution side is in reverse power state, it calculates the power difference between the set operating power and the current operating power of the distribution cabinet on the high-voltage distribution side. If the power monitoring and power supply regulation module detects that the energy storage module is in a discharging state, it compares the current discharge power of the energy storage module with the power difference. If the current discharge power of the energy storage module is greater than or equal to the power difference, the current discharge power of the energy storage module is reduced by the power difference. If the current discharge power of the energy storage module is less than the power difference, it compares the sum of the current discharge power of the energy storage module and the maximum charging power with the power difference. If the sum of the current discharge power of the energy storage module and the maximum charging power is greater than or equal to the power difference, the energy storage module is adjusted from a discharging state to a charging state, and the current charging power of the energy storage module is adjusted to the first difference between the power difference and the current discharge power. If the sum of the current discharge power of the energy storage module and the maximum charging power is less than the power difference, it compares the current discharge power of the energy storage module with the power difference. The sum of the current discharge power of the energy storage module, the maximum charging power, and the current power generation of the photovoltaic module is compared with the power difference. If the sum of the current discharge power of the energy storage module, the maximum charging power, and the current power generation of the photovoltaic module is greater than or equal to the power difference, the energy storage module is adjusted from the discharge state to the charging state, and the current charging power of the energy storage module is adjusted to the maximum charging power. At the same time, the power generation of the photovoltaic module is adjusted to the second difference between the power difference and the current discharge power and the maximum charging power of the energy storage module. If the sum of the current discharge power of the energy storage module, the maximum charging power, and the current power generation of the photovoltaic module is less than the power difference, the energy storage module is adjusted from the discharge state to the charging state, and the current charging power of the energy storage module is adjusted to the maximum charging power. At the same time, the photovoltaic module stops generating electricity.

7. A regional power supply and consumption coordinated regulation system according to claim 6, characterized in that: When the power monitoring and power supply regulation module analyzes that the distribution cabinet on the high-voltage distribution side is in an inverse power state, the strategy for adjusting the current charging and discharging power and charging and discharging state of the substation energy storage module, and adjusting the current power generation of the photovoltaic module until it is no longer in an inverse power state, is as follows: If the power monitoring and power supply regulation module detects that the energy storage module is in a charging state, it compares the third difference between the maximum charging power of the energy storage module and the current charging power with the power difference. If the third difference is greater than or equal to the power difference, the charging power is increased by the power difference. If the third difference is less than the power difference, it compares the sum of the third difference and the current power generation of the photovoltaic module with the power difference. If the sum of the third difference and the current power generation of the photovoltaic module is greater than or equal to the power difference, the charging power of the energy storage module is adjusted to the maximum charging power, and the current power generation of the photovoltaic module is decreased by the fourth difference between the power difference and the third difference. If the sum of the third difference and the current power generation of the photovoltaic module is less than the power difference, the charging power of the energy storage module is adjusted to the maximum charging power, and the photovoltaic module stops generating electricity.

8. A regional power supply and consumption coordinated regulation system according to claim 6, characterized in that: When the power monitoring and power supply regulation module analyzes that the distribution cabinet on the high-voltage distribution side is in an inverse power state, the strategy for adjusting the current charging and discharging power and charging and discharging state of the substation energy storage module, and adjusting the current power generation of the photovoltaic module until it is no longer in an inverse power state, is as follows: If the power monitoring and power supply regulation module detects that the energy storage module is in a state of neither charging nor discharging, it compares the current power generation of the photovoltaic module with the power difference. If the current power generation of the photovoltaic module is greater than or equal to the power difference, the current power generation of the photovoltaic module is reduced by the value of the power difference. If the current power generation of the photovoltaic module is less than the power difference, the photovoltaic module stops generating electricity.

9. A regional power supply and consumption coordinated regulation system according to claim 1, characterized in that: When the power monitoring and power supply regulation module analyzes that the transformer of the substation on the regional power supply side is in an overcapacity state, the strategy for adjusting the current charging and discharging power and charging and discharging state of the energy storage module until it is no longer in an overcapacity state is as follows: When the power monitoring and power supply regulation module analyzes that the transformer of the substation on the regional power supply side is in an overcapacity state, it calculates the capacity difference between the current operating power of the substation distribution cabinet and the set power capacity of the transformer. If the power monitoring and power supply regulation module detects that the energy storage module is in a charging state, it compares the current charging power of the energy storage module with the capacity difference. If the current charging power of the energy storage module is greater than or equal to the capacity difference, the charging power is reduced by the fifth difference between the current charging power of the energy storage module and the capacity difference. If the current charging power of the energy storage module is less than the capacity difference, the energy storage module is adjusted to a discharging state. If the power monitoring and power supply regulation module detects that the energy storage module is not in a charging state, then the energy storage module will not be regulated.

10. A regional power supply and consumption coordinated regulation system according to claim 1, characterized in that: The power monitoring and power supply regulation module first adjusts the current charging and discharging power and charging and discharging status of the substation energy storage module, and then adjusts the current power generation of the photovoltaic module until the distribution cabinet on the high-voltage distribution side is no longer in reverse power state. Then, it adjusts the current charging and discharging power and charging and discharging status of the energy storage module until the transformer of the substation on the regional power supply side is no longer in overcapacity state.

11. A method for coordinated regulation of regional power supply and consumption, characterized in that: Based on the regional power supply and consumption coordinated regulation system according to any one of claims 1-10, the method includes the following steps: Power monitoring and power supply regulation devices are installed inside the distribution cabinets on the high-voltage distribution side and in the distribution cabinets of each substation on the regional power supply side. When the distribution cabinet on the high-voltage distribution side is in reverse power state, the current charging and discharging power and charging and discharging state of the energy storage module in the substation are adjusted, and the current power generation of the photovoltaic module is adjusted until it is no longer in reverse power state. When the transformer of the substation on the regional power supply side is in overcapacity state, the current charging and discharging power and charging and discharging state of the energy storage module are adjusted until it is no longer in overcapacity state.

12. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the computer program is loaded into the processor, it implements the regional power supply and consumption coordinated regulation method of claim 10.

13. A storage medium storing a computer program, characterized in that: When the computer program is executed by the processor, it implements the regional power supply and consumption coordinated regulation method of claim 10.

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