Electricity consumption control method and device for photovoltaic community, photovoltaic community system and medium

Abstract

The invention relates to an electricity utilization control method and device for a photovoltaic community, a photovoltaic community system and a medium. The power utilization control method comprises the following steps: judging whether the power utilization power which can be provided by the photovoltaic system is smaller than a preset threshold value or not; under the condition that the electric power which can be provided by the photovoltaic system is smaller than a preset threshold value, the energy storage system is controlled to supply power to electric equipment according to the priority of the electric equipment, and the electric equipment is the electric equipment in the photovoltaic community. According to the invention, hierarchical management can be carried out on each electric device by using priority control, so that the power utilization is more stable and reliable, and the stable and reliable power supply of more important electric devices can be preferentially ensured.

Description

Technical Field

[0001] The present disclosure relates to the technical field of photovoltaic communities, and in particular to a method and device for controlling electricity consumption in a photovoltaic community, a photovoltaic community system, and a medium. Background Art

[0002] Related technologies Most photovoltaic communities use photovoltaic panels to generate electricity for the community during the day, and store excess electricity in battery packs in energy storage boxes; at night, the energy storage boxes are used to discharge electricity to maintain the community's electricity needs. Summary of the invention

[0003] The inventors discovered through research that when the energy storage box of a photovoltaic community with related technology is short of power at night, it is often unable to make effective, reasonable and timely logical adjustments, resulting in power outages and unstable power at night, which is not conducive to the stability and reliability of the photovoltaic community.

[0004] In view of at least one of the above technical problems, the present disclosure provides a method and device for controlling electricity consumption in a photovoltaic community, a photovoltaic community system and a medium, which can use priority control to perform hierarchical management of various power-consuming devices, making electricity consumption more stable and reliable.

[0005] According to one aspect of the present disclosure, a method for controlling electricity consumption in a photovoltaic community is provided, comprising:

[0006] Determining whether the power available from the photovoltaic system is less than a predetermined threshold;

[0007] When the power that can be provided by the photovoltaic system is less than a predetermined threshold, the energy storage system is controlled to supply power to the power-consuming equipment according to the priority of the power-consuming equipment, wherein the power-consuming equipment is the power-consuming equipment within the photovoltaic community.

[0008] In some embodiments of the present disclosure, controlling the energy storage system to supply power to the electrical equipment according to the priority of the electrical equipment includes:

[0009] Determine the target power consumption of each power consumption device based on the power consumption that the energy storage system can provide and the priority of each power consumption device;

[0010] An incremental proportional-integral-differential control method is adopted to control the power consumption of each electrical device to achieve the target power consumption.

[0011] In some embodiments of the present disclosure, determining the target power consumption of each electrical device according to the power consumption that can be provided by the energy storage system and the priority of each electrical device includes:

[0012] Calculate the sum of the rated power of the electrical equipment of each priority level;

[0013] Each priority from the highest priority to the lowest priority is taken as the current priority in turn;

[0014] For the current priority electrical equipment, determine whether the electrical power that can be provided by the energy storage system is greater than or equal to the first power sum, wherein the first power sum is greater than or equal to the sum of the rated powers of the current priority electrical equipment;

[0015] When the electric power that can be provided by the energy storage system is greater than or equal to the first power sum, the target electric power of the electric device with the current priority is determined to be the rated power of the electric device.

[0016] In some embodiments of the present disclosure, determining the target power consumption of each electrical device according to the power consumption that can be provided by the energy storage system and the priority of each electrical device further includes:

[0017] When the electric power that can be provided by the energy storage system is less than the first power sum, the target electric power of the electric equipment with a priority lower than or equal to the current priority is determined to be a predetermined proportion of the rated power of the electric equipment.

[0018] In some embodiments of the present disclosure, the value range of the predetermined ratio is greater than or equal to 0 and less than 1.

[0019] In some embodiments of the present disclosure, determining the target power consumption of each electrical device according to the power consumption that can be provided by the energy storage system and the priority of each electrical device includes:

[0020] Calculate the sum of the rated power of the electrical equipment of each priority level;

[0021] For N priorities, determine N first power sums, where N is the number of priorities of electrical equipment in the photovoltaic community, and the first power sum is the sum of the rated powers of electrical equipment that is higher than or equal to the current priority;

[0022] According to the sum of the N first powers, N+1 power value ranges are determined; when the power consumption that can be provided by the energy storage system is within each range of the N+1 power value ranges, the target power consumption of each electrical device is determined respectively.

[0023] In some embodiments of the present disclosure, the priority of the electrical equipment includes a first priority, a second priority, a third priority and a fourth priority, wherein the first priority is higher than the second priority, the second priority is higher than the third priority, and the third priority is higher than the fourth priority.

[0024] In some embodiments of the present disclosure, determining N+1 power value ranges according to the sum of the N first powers; and determining the target power of each electrical device respectively when the power that can be provided by the energy storage system is within each range of the N+1 power value ranges includes:

[0025] When the power consumption provided by the energy storage system is greater than or equal to the sum of the rated powers of all the electrical devices, the target power consumption of all the electrical devices is determined to be the rated power of the electrical devices;

[0026] When the power that can be provided by the energy storage system is less than the sum of the rated powers of all electrical equipment and is greater than or equal to the sum of the rated powers of the electrical equipment of the first priority, the second priority and the third priority, the target power powers of the first priority, the second priority and the third priority are determined as the rated powers of the electrical equipment, and the target power power of the electrical equipment of the fourth priority is determined as a predetermined proportion of the rated powers of the electrical equipment.

[0027] In some embodiments of the present disclosure, determining N+1 power value ranges according to the sum of the N first powers; and determining the target power of each electrical device respectively when the power that can be provided by the energy storage system is within each range of the N+1 power value ranges includes:

[0028] When the electric power that can be provided by the energy storage system is less than the sum of the rated powers of the electric equipment of the first priority, the second priority and the third priority, and is greater than or equal to the sum of the rated powers of the electric equipment of the first priority and the second priority, the target electric power of the first priority and the second priority is determined to be the rated power of the electric equipment, and the target electric power of the electric equipment of the third priority and the fourth priority is determined to be a predetermined proportion of the rated power of the electric equipment.

[0029] In some embodiments of the present disclosure, determining N+1 power value ranges according to the sum of the N first powers; and determining the target power of each electrical device respectively when the power that can be provided by the energy storage system is within each range of the N+1 power value ranges includes:

[0030] In the case where the power consumption that can be provided by the energy storage system is less than the sum of the rated powers of the power consumption equipment of the first priority and the second priority, and is greater than or equal to the sum of the rated powers of the power consumption equipment of the first priority, the target power consumption of the first priority is determined to be the rated power of the power consumption equipment, and the target power consumption of the power consumption equipment of the second priority, the third priority and the fourth priority is determined to be a predetermined proportion of the rated power of the power consumption equipment;

[0031] When the electric power that can be provided by the energy storage system is less than the sum of the rated powers of the electric devices of the first priority, the target electric power of all the electric devices is determined to be a predetermined proportion of the rated powers of the electric devices.

[0032] In some embodiments of the present disclosure, the incremental proportional integral differential control method is used to control the power consumption of each electrical device to achieve the target power consumption, including:

[0033] For each power-consuming device, obtaining the actual power consumption and target power consumption of the power-consuming device;

[0034] Determine the power difference of the electric device according to the actual electric power consumption and the target electric power consumption of the electric device;

[0035] An incremental proportional-integral-differential control method is adopted to control the actual power consumption of the electrical equipment for adjustment according to the power difference.

[0036] In some embodiments of the present disclosure, the predetermined threshold is the sum of the rated powers of all electrical equipment in the photovoltaic community.

[0037] In some embodiments of the present disclosure, the power consumption control method further includes:

[0038] When the power provided by the photovoltaic system is not less than a predetermined threshold, the photovoltaic system is controlled to supply power to the electrical equipment.

[0039] According to another aspect of the present disclosure, there is provided a power consumption control device, comprising:

[0040] A power determination module is configured to determine whether the power available from the photovoltaic system is less than a predetermined threshold;

[0041] The control module is configured to control the energy storage system to supply power to the power-consuming equipment according to the priority of the power-consuming equipment when the power consumption provided by the photovoltaic system is less than a predetermined threshold, wherein the power-consuming equipment is the power-consuming equipment within the photovoltaic community.

[0042] According to another aspect of the present disclosure, there is provided a power consumption control device, comprising:

[0043] a memory configured to store instructions; and

[0044] The processor is configured to execute the instructions so that the power consumption control device implements the power consumption control method as described in any of the above embodiments.

[0045] According to another aspect of the present disclosure, a photovoltaic community system is provided, comprising the power consumption control device as described in any of the above embodiments.

[0046] According to another aspect of the present disclosure, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and when the instructions are executed by a processor, the power consumption control method as described in any of the above embodiments is implemented.

[0047] According to another aspect of the present disclosure, a computer program product is provided, including a computer program, wherein when the computer program is executed by a processor, the power consumption control method as described in any of the above embodiments is implemented.

[0048] The present disclosure can utilize priority control to perform hierarchical management on various electrical equipment, making electricity consumption more stable and reliable, and can give priority to ensuring stable and reliable power supply for more important electrical equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0050] Figure 1 Schematic diagram of some embodiments of the power consumption control method of the photovoltaic community disclosed in the present invention.

[0051] Figure 2 Schematic diagrams of other embodiments of the power consumption control method for a photovoltaic community disclosed in the present invention.

[0052] Figure 3 Schematic diagram of incremental proportional-integral-derivative control in some embodiments of the present disclosure.

[0053] Figure 4 Schematic diagrams of some further embodiments of the power consumption control method for a photovoltaic community disclosed in the present invention.

[0054] Figure 5 It is a schematic diagram of the structure of some embodiments of the power control device disclosed in the present invention.

[0055] Figure 6 Schematic diagram of the structure of other embodiments of the power control device disclosed in the present invention.

[0056] Figure 7 It is a schematic diagram of the structure of some embodiments of the power consumption control system disclosed in the present invention.

[0057] Figure 8 Schematic diagram of the structure of other embodiments of the power control system disclosed in the present invention. DETAILED DESCRIPTION

[0058] The technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present disclosure and its application or use. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0059] Unless specifically stated otherwise, the relative arrangement of components and steps, the numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present disclosure.

[0060] At the same time, it should be understood that for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0061] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0062] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0063] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0064] Through research, the inventors found that a distributed photovoltaic air-conditioning system of the related technology solves the technical problem that the photovoltaic air-conditioning system in the prior art has low regional energy utilization efficiency and is difficult to achieve energy sharing. However, the related technology considers more the power grid side rather than the energy storage side, and does not solve the technical problem of how to more reasonably dispatch limited power resources when power is limited.

[0065] Figure 1 Schematic diagram of some embodiments of the power consumption control method of the photovoltaic community disclosed in the present invention. Figure 1 The embodiment can be executed by the photovoltaic community system disclosed herein or the power consumption control device disclosed herein. Figure 1 As shown, Figure 1 The method of the embodiment may include at least one of step 1 and step 2.

[0066] Step 1: determine whether the power available from the photovoltaic system is less than a predetermined threshold.

[0067] Step 2: When the power provided by the photovoltaic system is less than a predetermined threshold, the energy storage system is controlled to supply power to the power-consuming equipment according to the priority of the power-consuming equipment, wherein the power-consuming equipment is the power-consuming equipment within the photovoltaic community.

[0068] The above-mentioned embodiments of the present disclosure can utilize priority control to perform hierarchical management on various electrical equipment, so that electricity consumption is more stable and reliable, and stable and reliable power supply can be guaranteed to more important electrical equipment in priority.

[0069] In some embodiments of the present disclosure, the power consumption control method may further include: controlling the photovoltaic system to supply power to the power-consuming device when the power consumption that can be provided by the photovoltaic system is not less than a predetermined threshold.

[0070] In the above-mentioned embodiment of the present disclosure, when the photovoltaic power is greater than a predetermined threshold, photovoltaic power supply is preferentially adopted. Photovoltaic direct power supply avoids the energy loss during the process of photovoltaic to energy storage and external discharge of energy storage, thereby saving system electricity and improving system power quality.

[0071] In some embodiments of the present disclosure, the predetermined threshold is the sum of the rated powers of all electrical equipment in the photovoltaic community.

[0072] The above-mentioned embodiment of the present disclosure sets the predetermined threshold value as the sum of the rated powers of all electrical equipment in the photovoltaic community, which can better ensure that the photovoltaic system directly supplies power to the electrical equipment, thereby further saving system electricity consumption and improving the system power quality.

[0073] Figure 2 Schematic diagrams of other embodiments of the power consumption control method for a photovoltaic community disclosed in the present invention. Figure 2 The embodiment can be executed by the photovoltaic community system disclosed herein or the power consumption control device disclosed herein. Figure 2 As shown, Figure 2 The method of the embodiment (for example Figure 1 In the embodiment, the step of controlling the energy storage system to supply power to the electrical equipment according to the priority of the electrical equipment may include at least one step from step 21 to step 23.

[0074] In some embodiments of the present disclosure, the power control device of the present disclosure may be implemented as a flexible control system.

[0075] In some embodiments of the present disclosure, Figure 2 The embodiment is a simplified diagram of the algorithm sequence executed by the minimum control system of the flexible control system.

[0076] Step 21, determining the priority of the electrical equipment.

[0077] In some embodiments of the present disclosure, step 21 may include: determining the priority of each electrical device.

[0078] Step 22: determine the target power consumption and target power consumption of each electrical device.

[0079] In some embodiments of the present disclosure, step 22 may include: determining a target power consumption of each electrical device according to the power consumption that can be provided by the energy storage system and the priority of each electrical device.

[0080] In some embodiments of the present disclosure, step 22 may include at least one of steps 221 to 227 .

[0081] Step 221, calculating the sum of the rated powers of the electrical equipment of each priority level.

[0082] Step 222: Set the highest priority as the current priority.

[0083] Step 223, for the current priority electrical equipment, determine whether the electrical power that can be provided by the energy storage system is greater than or equal to the first power sum, wherein the first power sum is greater than or equal to the sum of the rated powers of the current priority electrical equipment.

[0084] Step 224 , when the power that can be provided by the energy storage system is less than the first power sum, determine the target power of the power-consuming equipment with a priority lower than or equal to the current priority as a predetermined proportion of the rated power of the power-consuming equipment.

[0085] In the above-mentioned embodiments of the present disclosure, if the total rated power of the electrical equipment with a priority lower than the current priority, the electrical equipment with a priority lower than or equal to the current priority will not be powered, or the electrical equipment with a priority lower than or equal to the current priority will be powered according to a predetermined ratio. Therefore, the above-mentioned embodiments of the present disclosure can ensure that high-priority electrical equipment can obtain stable and reliable power supply.

[0086] In some embodiments of the present disclosure, the value range of the predetermined ratio is greater than or equal to 0 and less than 1.

[0087] In some embodiments of the present disclosure, the predetermined ratio is 0.

[0088] In some other embodiments of the present disclosure, the predetermined ratio is 50%.

[0089] In the above embodiments of the present disclosure, when the energy storage power is insufficient, no power is supplied or less power is supplied to low-priority electrical equipment. Thus, the above embodiments of the present disclosure can ensure that high-priority electrical equipment can obtain stable and reliable power supply.

[0090] In the above embodiment of the present disclosure, if a processing method greater than or equal to 0 and less than 1 is adopted, compared with a processing method equal to 0, in the case of insufficient energy storage power, it is possible to appropriately ensure that a predetermined proportion of the rated power is supplied to low-priority electrical equipment.

[0091] Step 225 , when the power consumption that can be provided by the energy storage system is greater than or equal to the first power sum, determine the target power consumption of the current priority power consumption device as the rated power of the power consumption device; then execute step 226 .

[0092] The above embodiment of the present disclosure determines whether the power that the energy storage system can provide is greater than or equal to the sum of the first power of the highest priority starting from the highest priority; if it is greater than or equal to the sum of the first power of the highest priority, the power is supplied according to the rated power. Therefore, the above embodiment of the present disclosure can give priority to ensuring the stable and reliable power supply of the more important first priority electrical equipment.

[0093] Step 226, determine whether there is a priority level lower than the current priority level; if there is no priority level lower than the current priority level, the process ends; otherwise, if there is a priority level lower than the current priority level, execute step 227.

[0094] Step 227, taking a priority level one level lower than the current priority level as the current priority level; then repeating steps 223 to 226.

[0095] The above-mentioned embodiments of the present disclosure use a cyclic method to determine the target power consumption, and take each priority from the highest priority to the lowest priority as the current priority in turn, and judge whether the target power consumption of each priority device is met one by one. Therefore, the above-mentioned embodiments of the present disclosure can conveniently, quickly and accurately determine whether the power consumption that can be provided by the energy storage system can meet the power supply requirements of multi-level priority power consumption devices from high to low. By setting multiple priorities, the above-mentioned embodiments of the present disclosure can ensure that the stable and reliable power supply requirements of power consumption devices are met at multiple different levels.

[0096] In some embodiments of the present disclosure, step 22 may include: calculating the sum of the rated powers of electrical equipment of each priority level; for N priorities, determining N first power sums, wherein the first power sum is the sum of the rated powers of electrical equipment higher than or equal to the current priority level, and N is the number of priorities of electrical equipment in the photovoltaic community; determining N+1 power value ranges based on the N first power sums; and determining the target power of each electrical equipment separately when the power that can be provided by the energy storage system is within each range of the N+1 power value ranges.

[0097] Some other embodiments of the present disclosure use N priorities to determine N+1 power ranges, and then determine the specific technical solution for the target power consumption when the power consumption that the energy storage system can provide is within each range of the N+1 power value ranges. The above embodiments of the present disclosure can meet the stable and reliable power supply needs of power-consuming equipment at N+1 different levels by setting N priorities.

[0098] In some embodiments of the present disclosure, the priority of the electrical equipment includes a first priority, a second priority, a third priority and a fourth priority, wherein the first priority is higher than the second priority, the second priority is higher than the third priority, and the third priority is higher than the fourth priority.

[0099] In some embodiments of the present disclosure, the first-priority electrical equipment may be particularly important equipment, such as base stations, gateways, surveillance cameras in photovoltaic communities, touch screens equipped with energy storage boxes in photovoltaic communities, etc., among which the second-priority electrical equipment may be lighting equipment; the third-priority electrical equipment may be air conditioners, centrifuges, multi-split units, etc.; the fourth-priority electrical equipment may be other daily household appliances such as microwave ovens.

[0100] In some embodiments of the present disclosure, according to daily usage habits, the priority of electrical equipment needs to be set as follows: special important equipment > lighting equipment > air conditioning > other daily electrical equipment. Such a setting can be freely switched according to different usage scenarios and has flexibility.

[0101] In some embodiments of the present disclosure, for a 100kW energy storage converter development project, one energy storage box can control 100KW of electrical energy. Taking one energy storage box as an example, it can be allocated according to the proportion of special important equipment (10KW), lighting equipment (20KW), air conditioning (40KW), and other daily electrical equipment (30KW). The allocation of the above embodiments of the present disclosure belongs to the software end and can be set at any time.

[0102] The above embodiment of the present disclosure sets four priorities, so that the stable and reliable power supply requirements of electrical equipment can be met at four different levels. The above embodiment of the present disclosure can ensure that high-priority electrical appliances can obtain stable and reliable power supply.

[0103] In some embodiments of the present disclosure, when the priority of the electrical equipment includes a first priority, a second priority, a third priority and a fourth priority, the step of determining N+1 power value ranges based on the sum of N first powers; when the electrical power that can be provided by the energy storage system is within each range of the N+1 power value ranges, the step of separately determining the target electrical power of each electrical equipment may include at least one of steps 22a to 22e.

[0104] Step 22a: When the power consumption that can be provided by the energy storage system is greater than or equal to the sum of the rated powers of all the electrical devices, determine the target power consumption of all the electrical devices to be the rated powers of the electrical devices.

[0105] In the above-mentioned embodiment of the present disclosure, if the power that can be provided by the energy storage system is greater than or equal to the sum of the rated powers of all electrical devices, the stable and reliable power supply requirements of all electrical devices of four priorities can be met.

[0106] Step 22b, when the power consumption that can be provided by the energy storage system is less than the sum of the rated powers of all electrical equipment and is greater than or equal to the sum of the rated powers of the electrical equipment of the first priority, the second priority and the third priority, the target power consumption of the first priority, the second priority and the third priority is determined to be the rated power of the electrical equipment, and the target power consumption of the electrical equipment of the fourth priority is determined to be a predetermined proportion of the rated power of the electrical equipment.

[0107] In the above-mentioned embodiment of the present disclosure, if the electric power that can be provided by the energy storage system is less than the sum of the rated powers of all electrical devices, and is greater than or equal to the sum of the rated powers of the three highest priority electrical devices, it can be ensured that the three highest priority electrical devices can obtain stable and reliable power supply; the lowest priority electrical device can also be powered according to a predetermined proportion of the rated power.

[0108] Step 22c, when the power consumption that can be provided by the energy storage system is less than the sum of the rated powers of the power consumption equipment of the first priority, the second priority and the third priority, and is greater than or equal to the sum of the rated powers of the power consumption equipment of the first priority and the second priority, determine the target power consumption of the first priority and the second priority as the rated powers of the power consumption equipment, and determine the target power consumption of the power consumption equipment of the third priority and the fourth priority as a predetermined proportion of the rated powers of the power consumption equipment.

[0109] In the above embodiment of the present disclosure, if the power that the energy storage system can provide is less than the sum of the rated powers of the electrical equipment of the three highest priorities, and is greater than or equal to the sum of the rated powers of the electrical equipment of the two highest priorities, it can be ensured that the electrical equipment of the two highest priorities can obtain stable and reliable power supply, and the electrical equipment of the two lowest priorities can also be powered according to a predetermined ratio of the rated power, thereby the electrical equipment of the two lowest priorities can also obtain a certain degree of power supply guarantee.

[0110] Step 22d, when the power consumption that can be provided by the energy storage system is less than the sum of the rated powers of the power consumption equipment of the first priority and the second priority, and is greater than or equal to the sum of the rated powers of the power consumption equipment of the first priority, the target power consumption of the first priority is determined to be the rated power of the power consumption equipment, and the target power consumption of the power consumption equipment of the second priority, the third priority and the fourth priority is determined to be a predetermined proportion of the rated power of the power consumption equipment.

[0111] In the above embodiment of the present disclosure, if the sum of the rated powers of the electrical equipment with the highest two priorities is greater than or equal to the sum of the rated powers of the electrical equipment with the highest priority, it can be ensured that the electrical equipment with the highest priority can obtain stable and reliable power supply, and the electrical equipment with the lowest three priorities can also be powered according to a predetermined ratio of the rated powers, thereby the electrical equipment with the lowest three priorities can also obtain a certain degree of power supply guarantee.

[0112] Step 22e: when the power that can be provided by the energy storage system is less than the sum of the rated powers of the first priority electrical devices, determine the target power of all electrical devices to be a predetermined proportion of the rated powers of the electrical devices.

[0113] In the above embodiment of the present disclosure, if the power that can be provided by the energy storage system is less than the sum of the rated powers of the highest priority electrical equipment, a certain degree of power supply can be guaranteed for all electrical equipment.

[0114] In summary, the above embodiment of the present disclosure sets four priorities, which can ensure that the power demand of the electrical equipment is stable and reliable. The above embodiment of the present disclosure sets four priorities, which can ensure that the power demand that the energy storage system can provide is met at five different levels within five different ranges.

[0115] The following describes step 22 with respect to the energy storage box of a 100kW-class energy storage converter. Step 22 may include at least one of steps a to f.

[0116] Step a, calculate the sum of the rated power of electrical equipment of each priority, for example: special important equipment is 10KW, lighting equipment is 20KW, air conditioning is 40KW, and other daily electrical equipment is 30KW.

[0117] Step b: If the power consumption that the energy storage system can provide is greater than or equal to 100 kW, the target power consumption of all electrical equipment is set to the rated power of the electrical equipment.

[0118] Step c: if the power that the energy storage system can provide is less than 10 kW, then the target power of all electrical devices is set to a predetermined proportion (eg, 0 or 50%) of the rated power of the electrical devices.

[0119] Step d: If the power consumption that the energy storage system can provide is less than 100 kW and greater than or equal to 70 kW, the target power consumption of special important equipment, lighting equipment and air conditioning is set to the rated power of the equipment, and the target power consumption of other daily equipment is set to a predetermined proportion of the rated power of the equipment.

[0120] Step e: If the power consumption that the energy storage system can provide is less than 70 kW and greater than or equal to 30 kW, the target power consumption of special important equipment and lighting equipment is set to the rated power of the equipment, and the target power consumption of air conditioners and other daily electrical equipment is set to a predetermined proportion of the rated power of the equipment.

[0121] Step f: If the power consumption that the energy storage system can provide is less than 30 kW and greater than or equal to 10 kW, the target power consumption of special important equipment is set to the rated power of the equipment, and the target power consumption of lighting equipment, air conditioners and other daily electrical equipment is set to a predetermined proportion of the rated power of the equipment.

[0122] Step 23, using an incremental PID (proportional integral differential) control method to control the power consumption of each electrical device to achieve the target power consumption.

[0123] In some embodiments of the present disclosure, step 23 may include: using a PID control method to flexibly control the power consumption of each electrical device to achieve the target power consumption.

[0124] The above-mentioned embodiments of the present disclosure determine the target power consumption of each electrical device according to priority management, and dynamically adjust the power consumption of the electrical devices in the system using the PID control algorithm. The above-mentioned embodiments of the present disclosure perform priority management on the electrical devices, and give priority to ensuring that high-priority devices work at the target power consumption, thereby saving system power consumption and improving system power consumption efficiency. The above-mentioned embodiments of the present disclosure determine the target power consumption of each electrical device, and dynamically adjust the power consumption of the electrical devices in the system using the PID control algorithm, so that each electrical device works at the target power consumption. By real-time control of the power consumption, frequency and other parameters of the electrical devices, the power quality of the system is improved, and the adverse effects on the system caused by fluctuations in the operating frequency of the equipment can be effectively avoided.

[0125] The above-mentioned embodiments of the present disclosure can dynamically maintain the power consumption of the electrical equipment in the system at a reasonable level. Under the premise of ensuring the operation of the community's electrical equipment, the possibility of the community shutting down due to power shortage is greatly reduced.

[0126] The PID algorithm of the above embodiment of the present disclosure is implemented through a combination of three basic control actions: proportional (P), integral (I) and differential (D) control. Proportional control focuses on the current error and adjusts the output signal accordingly to reduce the error; integral control considers the past error accumulation to help eliminate steady-state errors; differential control predicts future error changes and adjusts the output signal in advance to prevent overshoot or oscillation.

[0127] The above embodiments of the present disclosure improve the performance of the control system by calibrating PID parameters (involving the setting of proportional gain, integral time and differential time), such as stability, response speed and overshoot, etc. At the same time, the above embodiments of the present disclosure control the parameters such as power consumption and frequency of the electrical equipment in real time, which can effectively avoid the adverse effects on the system caused by fluctuations in the operating frequency of the equipment.

[0128] The above embodiments of the present disclosure use a flexible PID control algorithm to adjust the power and operating frequency of each electrical device, which has the characteristics of precise and efficient control. The PID algorithm of the above embodiments of the present disclosure uses an incremental PID algorithm, which has the advantages of small calculation amount and small impact range when the machine fails.

[0129] In some embodiments of the present disclosure, step 23 may include at least one step from step 231 to step 233 .

[0130] Step 231: For each electric device, obtain the actual power consumption and target power consumption of the electric device.

[0131] Step 232: Determine the power difference of the electric device according to the actual power consumption of the electric device and the target power consumption.

[0132] In some embodiments of the present disclosure, step 232 may include: determining the power difference of the electric device according to the difference between the actual electric power consumption of the electric device and the target electric power consumption.

[0133] Step 233, using an incremental proportional-integral-differential control method, the actual power consumption of the electrical equipment is controlled and adjusted according to the power difference.

[0134] The PID algorithm of the above embodiment of the present disclosure is mainly used to adjust the operating power of the electrical equipment to achieve efficient control and energy saving. The PID control for adjusting the target power in the above embodiment of the present disclosure comprehensively considers the gap between the actual operating state of the electrical equipment and the expected output power, thereby dynamically adjusting the actual power of the electrical equipment to reach the target power.

[0135] The above-mentioned embodiments of the present disclosure perform real-time statistics on the power of electrical equipment, continuously make a difference between the target power and the actual power, and then perform dynamic adjustment to achieve flexible dynamic control.

[0136] In the above embodiments of the present disclosure, when the power is insufficient, the power of the electrical equipment in some secondary areas is gradually reduced as a whole to ensure that the power consumption in the core area is rated power. In the above embodiments of the present disclosure, air conditioners, lights and other equipment can also be clustered as a large category. In the above embodiments of the present disclosure, the user can adjust the energy storage box on the touch screen, and the PID algorithm is integrated on the control panel of the energy storage box.

[0137] Figure 3 Schematic diagram of incremental proportional integral derivative control method in some embodiments of the present disclosure. Figure 3 As shown in the figure, k is the sampling sequence number, which is each moment; u(k) is the PID calculation output value at the kth sampling moment; r(t) is the set operating power of the equipment (that is, the target power consumption of the electrical equipment); y(t) is the actually measured equipment operating power (that is, the actual power consumption of the electrical equipment); e(k) is the power difference between r(t) and y(t).

[0138] The above embodiments of the present disclosure adopt an incremental PID algorithm. Figure 3 This is the formula and process of the incremental PID algorithm. The above-mentioned embodiment of the present invention requires real-time statistics of the power of the electrical equipment, continuously subtracting the target power from the actual power, and then performing dynamic adjustments to achieve flexible dynamic control.

[0139] In some embodiments of the present disclosure, according to the classical PID control theory, the position PID expression is shown in formula (1).

[0140] + [ ] (1)

[0141] In formula (1), k is the sampling number, u(k) is the PID calculation output value at the kth sampling time, e(k) in the figure is the deviation value input at the kth sampling time, that is, the difference between the target power r(t) of the electrical equipment and the measured actual power y(t), and e(k-1) is the deviation value input at the k-1th sampling time. is the proportionality coefficient; is the integration coefficient; is the differential coefficient. According to formula (1), formula (2) can be derived as shown below.

[0142] + [ ] (2)

[0143] Subtracting formula (2) from formula (1) yields the incremental PID control algorithm expression, as shown in formula (3).

[0144] 𝚫 + [ ] (3)

[0145] The incremental PID control algorithm has the advantages of small calculation amount and small impact range when the machine fails. Let A = ( ), B=( ), C = , can be obtained as Figure 3 The schematic diagram of the incremental proportional integral derivative control method is shown in the figure.

[0146] The above-mentioned embodiments of the present disclosure can continuously make a difference between the actual power and the required power, and continuously send the error back to the incremental PID algorithm to continuously perform correction and adjustment, so that the operating power of the equipment is always accurately controlled and always close to the required power (target power).

[0147] Figure 4 Schematic diagrams of some further embodiments of the power consumption control method for a photovoltaic community disclosed in the present invention. Figure 4 The embodiment can be executed by the photovoltaic community system disclosed herein or the power consumption control device disclosed herein. Figure 4 As shown, Figure 4 The method of the embodiment may include at least one of steps 41 to 48 .

[0148] In some embodiments of the present disclosure, the power control device of the present disclosure may be implemented as a flexible control module.

[0149] Step 41, the photovoltaic community system is running.

[0150] Step 42, the flexible control module determines whether the photovoltaic system has sufficient power generation. If the photovoltaic system has sufficient power generation, step 47 is executed; otherwise, if the photovoltaic system has insufficient power generation, step 43 is executed.

[0151] In some embodiments of the present disclosure, step 42 may include: the flexible control module determines whether the power consumption provided by the photovoltaic system is greater than or equal to a predetermined threshold. If the power consumption provided by the photovoltaic system is greater than or equal to the predetermined threshold, step 47 is executed; otherwise, if the power consumption provided by the photovoltaic system is less than the predetermined threshold, step 43 is executed.

[0152] Step 43, the electrical equipment is powered by the energy storage system.

[0153] Step 44: the flexible control module switches to the electrical equipment priority determination mode.

[0154] Step 45: The flexible control module determines the power consumption of each electrical device.

[0155] Step 46, the flexible control module uses an incremental proportional integral differential algorithm to accurately control the power of the electrical equipment, thereby achieving the goal of saving electricity and improving efficiency in the photovoltaic community; thereafter, the other steps of this embodiment are no longer executed.

[0156] Step 47, the electrical equipment is powered by the photovoltaic system.

[0157] Step 48: The flexible control module provides normal operating power (rated power) to all electrical devices by default.

[0158] The above-mentioned embodiment of the present disclosure proposes a flexible control method for photovoltaic community electricity consumption, and innovatively adds a flexible control module to the original system. It can dynamically maintain the power consumption of electrical equipment in the system (such as air conditioners, centrifuges, multi-split units, household appliances, etc.) at a reasonable level according to the power value of the energy storage box. Under the premise of ensuring the operation of community electrical equipment, the possibility of community shutdown due to power shortage is avoided.

[0159] Figure 5 Schematic diagram of the structure of some embodiments of the power control device disclosed in the present invention. Figure 5 As shown, the power consumption control device disclosed herein may include a power determination module 51 and a control module 52 .

[0160] The power determination module 51 is configured to determine whether the power that can be provided by the photovoltaic system is less than a predetermined threshold.

[0161] In some embodiments of the present disclosure, the predetermined threshold is the sum of the rated powers of all electrical equipment in the photovoltaic community.

[0162] The control module 52 is configured to control the energy storage system to supply power to the electrical equipment according to the priority of the electrical equipment when the electrical power that can be provided by the photovoltaic system is less than a predetermined threshold, wherein the electrical equipment is the electrical equipment within the photovoltaic community.

[0163] In some embodiments of the present disclosure, the control module 52 may also be configured to control the photovoltaic system to supply power to the electrical equipment when the electrical power that can be provided by the photovoltaic system is not less than a predetermined threshold.

[0164] In some embodiments of the present disclosure, when the control module 52 controls the energy storage system to supply power to the electrical equipment according to the priority of the electrical equipment, it can be configured to determine the target power consumption of each electrical equipment according to the power that can be provided by the energy storage system and the priority of each electrical equipment; and adopt an incremental proportional integral differential control method to control the power consumption of each electrical equipment to achieve the target power consumption.

[0165] In some embodiments of the present disclosure, the control module 52 can be configured to calculate the sum of the rated powers of the electrical equipment of each priority level when determining the target power of each electrical equipment based on the power that can be provided by the energy storage system and the priority of each electrical equipment; and sequentially take each priority from the highest priority to the lowest priority as the current priority level; for the electrical equipment of the current priority level, determine whether the power that can be provided by the energy storage system is greater than or equal to the first power sum, wherein the first power sum is the sum of the rated powers of the electrical equipment of the current priority level; when the power that can be provided by the energy storage system is greater than or equal to the first power sum, determine the target power of the electrical equipment of the current priority level to be the rated power of the electrical equipment; when the power that can be provided by the energy storage system is less than the first power sum, determine the target power of the electrical equipment of the current priority level to be a predetermined proportion of the rated power of the electrical equipment.

[0166] In some embodiments of the present disclosure, the value range of the predetermined ratio may be greater than or equal to 0 and less than 1.

[0167] In some embodiments of the present disclosure, the control module 52 can be configured to determine the target power consumption of each power device according to the power consumption that can be provided by the energy storage system and the priority of each power device, and to determine the target power consumption of the power device of the current priority as the rated power of the power device when the power consumption that can be provided by the energy storage system is greater than the first power sum, and to take the priority one level lower than the current priority as the current priority; then execute the operation of judging whether the power consumption that can be provided by the energy storage system is greater than or equal to the first power sum for the power device of the current priority, and to determine the target power consumption of the power device of the current priority as the rated power of the power device when the power consumption that can be provided by the energy storage system is greater than or equal to the first power sum, and to determine the target power consumption of the power device of the current priority as the rated power of the power device when the power consumption that can be provided by the energy storage system is greater than or equal to the first power sum, and to determine the target power consumption of the power device of the current priority as a predetermined proportion of the rated power of the power device when the power consumption that can be provided by the energy storage system is less than the first power sum.

[0168] In some embodiments of the present disclosure, the priority of the electrical equipment includes a first priority, a second priority, a third priority and a fourth priority, wherein the first priority is higher than the second priority, the second priority is higher than the third priority, and the third priority is higher than the fourth priority.

[0169] In some embodiments of the present disclosure, the control module 52 determines the target power consumption of each electrical device based on the power consumption that can be provided by the energy storage system and the priority of each electrical device. In this case, the control module 52 can be configured to determine the target power consumption of all electrical devices to be the rated power of the electrical devices when the power consumption that can be provided by the energy storage system is greater than or equal to the sum of the rated powers of all electrical devices.

[0170] In some embodiments of the present disclosure, the control module 52 can be configured to calculate the sum of the rated powers of the electrical equipment of each priority level when determining the target power of each electrical equipment based on the power that can be provided by the energy storage system and the priority of each electrical equipment; for N priorities, determine N first power sums, where N is the number of priorities of the electrical equipment in the photovoltaic community, and the first power sum is the sum of the rated powers of the electrical equipment higher than or equal to the current priority level; determine N+1 power value ranges based on the N first power sums; and determine the target power of each electrical equipment separately when the power that can be provided by the energy storage system is within each range of the N+1 power value ranges.

[0171] In some embodiments of the present disclosure, the control module 52 determines the target power consumption of each power device based on the power consumption that can be provided by the energy storage system and the priority of each power device. In addition, the control module 52 can be configured to determine the target power consumption of the first and second priorities as the rated power of the power devices, and determine the target power consumption of the third and fourth priorities as a predetermined proportion of the rated power of the power devices, when the power consumption that can be provided by the energy storage system is less than the sum of the rated power of the power devices of the first, second and third priorities, and is greater than or equal to the sum of the rated power of the power devices of the first and second priorities.

[0172] In some embodiments of the present disclosure, the control module 52 determines the target power consumption of each electrical device based on the power consumption that can be provided by the energy storage system and the priority of each electrical device. In addition, when the power consumption that can be provided by the energy storage system is less than the sum of the rated powers of the electrical devices of the first and second priorities, and is greater than or equal to the sum of the rated powers of the electrical devices of the first priority, the control module 52 can also be configured to determine the target power consumption of the first priority as the rated power of the electrical device, and determine the target power consumption of the electrical devices of the second, third and fourth priorities as a predetermined proportion of the rated power of the electrical devices.

[0173] In some embodiments of the present disclosure, the control module 52 determines the target power consumption of each electrical device based on the power consumption that can be provided by the energy storage system and the priority of each electrical device. In addition, when the power consumption that can be provided by the energy storage system is less than the sum of the rated powers of the electrical devices of the first priority, the control module 52 can also be configured to determine the target power consumption of all electrical devices to be a predetermined proportion of the rated power of the electrical devices.

[0174] In some embodiments of the present disclosure, the control module 52 adopts an incremental proportional-integral-differential control method to control the power consumption of each electrical device to achieve the target power consumption. The control module 52 can be configured to obtain the actual power consumption and the target power consumption of each electrical device for each electrical device; determine the power difference of the electrical device based on the actual power consumption and the target power consumption of the electrical device; and adopt an incremental proportional-integral-differential control method to control the actual power consumption of the electrical device to adjust according to the power difference.

[0175] In some embodiments of the present disclosure, the power consumption control device of the present disclosure may be configured to implement the power consumption control method as described in any of the above embodiments.

[0176] Figure 6 Schematic diagram of the structure of some other embodiments of the power control device disclosed in the present invention. Figure 6 As shown, the power control device disclosed herein may include a memory 61 and a processor 62 .

[0177] The memory 61 is used to store instructions, the processor 62 is coupled to the memory 61, and the processor 62 is configured to execute the power consumption control method of the photovoltaic community involved in the above embodiment based on the instructions stored in the memory.

[0178] like Figure 6 As shown, the power control device further includes a communication interface 63 for information exchange with other devices. At the same time, the power control device further includes a bus 64, through which the processor 62, the communication interface 63, and the memory 61 communicate with each other.

[0179] The memory 61 may include a high-speed RAM memory, and may also include a non-volatile memory, such as at least one disk memory. The memory 61 may also be a memory array. The memory 61 may also be divided into blocks, and the blocks may be combined into virtual volumes according to certain rules.

[0180] In addition, the processor 62 may be a central processing unit (CPU), or may be an application specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiments of the present disclosure.

[0181] Figure 7 Schematic diagram of the structure of some embodiments of the power consumption control system disclosed in the present invention. Figure 7 As shown, the power consumption control device of the present disclosure may include a power consumption control device 71 , a photovoltaic system 72 , a photovoltaic DC / DC (direct current / direct current) conversion device 73 , an energy storage system 74 , an energy storage DC / DC conversion device 75 and a power consumption device 76 .

[0182] In some embodiments of the present disclosure, the power supply of the photovoltaic community relies on the photovoltaic system 72 and the energy storage system 74. When the photovoltaic system 72 and the energy storage system 74 can be converted into the power required by the power consumption equipment through the photovoltaic DC / DC conversion device 73 and the energy storage DC / DC conversion device 75, respectively, to supply power to the power consumption equipment 76, the present disclosure adds a power consumption control device 71 between the photovoltaic DC / DC conversion device 73, the energy storage DC / DC conversion device 75 and the power consumption equipment 76, such as Figure 7 shown.

[0183] In some embodiments of the present disclosure, the power control device 71 of the present disclosure may be implemented as a flexible control module.

[0184] In some embodiments of the present disclosure, the flexible control module of the present disclosure can be implemented as a control panel of an energy storage box. The flexible control module has a touch screen. The user can adjust the energy storage box on the touch screen, and the PID algorithm is integrated on the control panel of the energy storage box.

[0185] In some embodiments of the present disclosure, the power control device 71 of the present disclosure can be implemented as any of the above embodiments (for example Figure 5 or Figure 6 Embodiment) described in the power control device.

[0186] In some embodiments of the present disclosure, the power consumption control device 71 of the present disclosure can be configured to judge the power supply system (photovoltaic system, energy storage system) after the photovoltaic community system is in operation; if the power that the photovoltaic system can provide exceeds a predetermined threshold, the power consumption equipment in the photovoltaic community will rely on the power generated by the photovoltaic system and operate at rated power.

[0187] In some embodiments of the present disclosure, the power control device 71 of the present disclosure can also be configured to use the energy storage system to power the equipment if the power that the photovoltaic system can provide is lower than a predetermined threshold. Since the energy storage system is composed of many batteries, in order to avoid power outages in the photovoltaic community due to power exhaustion, the power control device 71 here adopts flexible control, which is mainly divided into: power equipment priority judgment and PID control.

[0188] The above embodiment of the present disclosure adds a flexible control module to the photovoltaic community system, which uses the PID control algorithm to dynamically adjust the power consumption of the power-consuming devices in the system; at the same time, the module of the above embodiment of the present disclosure uses priority control to hierarchically manage each power-consuming device, making the power consumption more stable and reliable. Finally, the above embodiment of the present disclosure achieves the effect of saving system power consumption, improving system power quality, and improving system power efficiency.

[0189] Figure 8 Schematic diagram of the structure of other embodiments of the power control system disclosed in the present invention. Figure 8 This is a schematic diagram of the power consumption control system of the present disclosure being powered by the energy storage system. Figure 8 As shown, the power consumption control system of the present disclosure includes a power consumption control device 71 , an energy storage system 74 , an energy storage DC / DC conversion device 75 and a power consumption device 76 .

[0190] In some embodiments of the present disclosure, Figure 8 As shown, the energy storage system 74 , the power control device 71 , and the power equipment 76 all communicate using the 485 communication method; the energy storage system 74 outputs electric energy to the power control device 71 and the power equipment 76 through the energy storage DC / DC conversion device 75 .

[0191] In some embodiments of the present disclosure, Figure 8 As shown, the power control device 71 of the present disclosure may include an interface terminal 711 and a minimum control system 712 .

[0192] In some embodiments of the present disclosure, the minimum control system 712 includes a main control chip, a memory chip, a storage device, etc. to maintain the operation of the algorithm in the power control device.

[0193] The above-mentioned embodiment of the present disclosure first determines the priority of the power consumption of the equipment, and then performs PID algorithm control on the power consumption of each power-consuming equipment.

[0194] According to another aspect of the present disclosure, a computer program product is provided, including a computer program, wherein when the computer program is executed by a processor, the power consumption control method as described in any of the above embodiments is implemented.

[0195] According to another aspect of the present disclosure, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and when the instructions are executed by a processor, the power consumption control method as described in any of the above embodiments is implemented.

[0196] The computer-readable storage medium of the present disclosure may be implemented as a non-transitory computer-readable storage medium.

[0197] Those skilled in the art will appreciate that the embodiments of the present disclosure may be provided as methods, devices, or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present disclosure may take the form of a computer program product implemented on one or more computer-usable non-transient storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0198] The present disclosure is described with reference to flowcharts and / or block diagrams of methods, devices (systems) and computer program products according to embodiments of the present disclosure. It should be understood that each process and / or block in the flowchart and / or block diagram and the combination of processes and / or blocks in the flowchart and / or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0199] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0200] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0201] The power consumption control device, minimum control system, power judgment module and control module described above can be implemented as a general-purpose processor, a programmable logic controller, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component or any appropriate combination thereof for performing the functions described in the present disclosure.

[0202] Those skilled in the art will appreciate that all or part of the steps of the above-described embodiment method of the present disclosure may be accomplished by hardware, and the hardware may be implemented as a general-purpose processor, a programmable logic controller, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or any appropriate combination thereof for executing the method described in the present disclosure.

[0203] So far, the present disclosure has been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0204] A person skilled in the art will understand that all or part of the steps to implement the above embodiments may be accomplished by hardware, or may be accomplished by instructing the relevant hardware through a program, and the program may be stored in a non-transitory computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a disk or an optical disk, etc.

[0205] The description of the present disclosure is given for the purpose of illustration and description, and is not intended to be exhaustive or to limit the present disclosure to the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present disclosure, and to enable those of ordinary skill in the art to understand the present disclosure and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A method for controlling electricity consumption in a photovoltaic community, comprising: Determining whether the power available from the photovoltaic system is less than a predetermined threshold; When the power that can be provided by the photovoltaic system is less than a predetermined threshold, the energy storage system is controlled to supply power to the power-consuming equipment according to the priority of the power-consuming equipment, wherein the power-consuming equipment is the power-consuming equipment within the photovoltaic community.

2. The method for controlling electricity consumption in a photovoltaic community according to claim 1, wherein: The controlling the energy storage system to supply power to the electrical equipment according to the priority of the electrical equipment comprises: Determine the target power consumption of each power consumption device based on the power consumption that the energy storage system can provide and the priority of each power consumption device; An incremental proportional-integral-differential control method is adopted to control the power consumption of each electrical device to achieve the target power consumption.

3. The method for controlling electricity consumption in a photovoltaic community according to claim 2, wherein: Determining the target power consumption of each power consumption device according to the power consumption that can be provided by the energy storage system and the priority of each power consumption device includes: Calculate the sum of the rated power of the electrical equipment of each priority level; Each priority from the highest priority to the lowest priority is taken as the current priority in turn; For the current priority electrical equipment, determine whether the electrical power that can be provided by the energy storage system is greater than or equal to the first power sum, wherein the first power sum is greater than or equal to the sum of the rated powers of the current priority electrical equipment; When the electric power that can be provided by the energy storage system is greater than or equal to the first power sum, the target electric power of the electric device with the current priority is determined to be the rated power of the electric device.

4. The method for controlling electricity consumption in a photovoltaic community according to claim 3, wherein: Determining the target power consumption of each power consumption device according to the power consumption that can be provided by the energy storage system and the priority of each power consumption device also includes: When the electric power that can be provided by the energy storage system is less than the first power sum, the target electric power of the electric equipment with a priority lower than or equal to the current priority is determined to be a predetermined proportion of the rated power of the electric equipment.

5. The method for controlling electricity consumption in a photovoltaic community according to claim 4, wherein: The value range of the predetermined ratio is greater than or equal to 0 and less than 1.

6. The method for controlling electricity consumption in a photovoltaic community according to any one of claims 2 to 5, wherein: Determining the target power consumption of each power consumption device according to the power consumption that can be provided by the energy storage system and the priority of each power consumption device includes: Calculate the sum of the rated power of the electrical equipment of each priority level; For N priorities, determine N first power sums, where N is the number of priorities of electrical equipment in the photovoltaic community, and the first power sum is the sum of the rated powers of electrical equipment that is higher than or equal to the current priority; According to the sum of the N first powers, N+1 power value ranges are determined; when the power consumption that can be provided by the energy storage system is within each range of the N+1 power value ranges, the target power consumption of each electrical device is determined respectively.

7. The method for controlling electricity consumption in a photovoltaic community according to claim 6, wherein: The priorities of the electrical equipment include a first priority, a second priority, a third priority and a fourth priority, wherein the first priority is higher than the second priority, the second priority is higher than the third priority, and the third priority is higher than the fourth priority.

8. The method for controlling electricity consumption in a photovoltaic community according to claim 7, wherein: The step of determining N+1 power value ranges according to the sum of the N first powers; and determining the target power of each power-consuming device respectively when the power that can be provided by the energy storage system is within each range of the N+1 power value ranges comprises: When the power consumption provided by the energy storage system is greater than or equal to the sum of the rated powers of all the electrical devices, the target power consumption of all the electrical devices is determined to be the rated power of the electrical devices; When the power that can be provided by the energy storage system is less than the sum of the rated powers of all electrical equipment and is greater than or equal to the sum of the rated powers of the electrical equipment of the first priority, the second priority and the third priority, the target power powers of the first priority, the second priority and the third priority are determined as the rated powers of the electrical equipment, and the target power power of the electrical equipment of the fourth priority is determined as a predetermined proportion of the rated powers of the electrical equipment.

9. The method for controlling electricity consumption in a photovoltaic community according to claim 7, wherein: The step of determining N+1 power value ranges according to the sum of the N first powers; and determining the target power of each power-consuming device respectively when the power that can be provided by the energy storage system is within each range of the N+1 power value ranges comprises: When the electric power that can be provided by the energy storage system is less than the sum of the rated powers of the electric equipment of the first priority, the second priority and the third priority, and is greater than or equal to the sum of the rated powers of the electric equipment of the first priority and the second priority, the target electric power of the first priority and the second priority is determined to be the rated power of the electric equipment, and the target electric power of the electric equipment of the third priority and the fourth priority is determined to be a predetermined proportion of the rated power of the electric equipment.

10. The method for controlling electricity consumption in a photovoltaic community according to claim 7, wherein: The step of determining N+1 power value ranges according to the sum of the N first powers; and determining the target power of each power-consuming device respectively when the power that can be provided by the energy storage system is within each range of the N+1 power value ranges comprises: In the case where the power consumption that can be provided by the energy storage system is less than the sum of the rated powers of the power consumption equipment of the first priority and the second priority, and is greater than or equal to the sum of the rated powers of the power consumption equipment of the first priority, the target power consumption of the first priority is determined to be the rated power of the power consumption equipment, and the target power consumption of the power consumption equipment of the second priority, the third priority and the fourth priority is determined to be a predetermined proportion of the rated power of the power consumption equipment; When the electric power that can be provided by the energy storage system is less than the sum of the rated powers of the electric devices of the first priority, the target electric power of all the electric devices is determined to be a predetermined proportion of the rated powers of the electric devices.

11. The method for controlling electricity consumption in a photovoltaic community according to any one of claims 2 to 6, wherein: The incremental proportional-integral-differential control method is used to control the power consumption of each electrical device to achieve the target power consumption, including: For each power-consuming device, obtaining the actual power consumption and target power consumption of the power-consuming device; Determine the power difference of the electric device according to the actual electric power consumption and the target electric power consumption of the electric device; An incremental proportional-integral-differential control method is adopted to control the actual power consumption of the electrical equipment for adjustment according to the power difference.

12. The method for controlling electricity consumption in a photovoltaic community according to any one of claims 1 to 6, further comprising: When the power provided by the photovoltaic system is not less than a predetermined threshold, the photovoltaic system is controlled to supply power to the electrical equipment.

13. The method for controlling electricity consumption in a photovoltaic community according to any one of claims 1 to 6, wherein: The predetermined threshold is the sum of the rated powers of all electrical equipment in the photovoltaic community.

14. An electricity control device, comprising: A power determination module is configured to determine whether the power available from the photovoltaic system is less than a predetermined threshold; The control module is configured to control the energy storage system to supply power to the power-consuming equipment according to the priority of the power-consuming equipment when the power consumption provided by the photovoltaic system is less than a predetermined threshold, wherein the power-consuming equipment is the power-consuming equipment within the photovoltaic community.

15. An electricity control device, comprising: a memory configured to store instructions; and The processor is configured to execute the instructions so that the power consumption control device implements the power consumption control method as described in any one of claims 1-13.

16. A photovoltaic community system, comprising the power consumption control device according to claim 14 or 15.

17. A computer-readable storage medium, wherein: The computer-readable storage medium stores computer instructions, and when the instructions are executed by a processor, the power consumption control method according to any one of claims 1 to 13 is implemented.

18. A computer program product comprising a computer program, wherein: When the computer program is executed by a processor, the power consumption control method according to any one of claims 1 to 13 is implemented.

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