Energy management method, device and equipment based on micro-grid system and medium

Abstract

The invention relates to the technical field of energy management, in particular to an energy management method and device based on a micro-grid system, equipment and a medium. The method comprises the following steps: acquiring first operation monitoring data and second operation monitoring data; determining the power supply state of the micro-grid system according to the first operation monitoring data and the second operation monitoring data; and determining an electric energy output adjustment parameter of the micro-grid system to the load unit according to the power supply state and the electric energy demand relationship of the load unit. The power supply state of the micro-grid system is determined through the first operation monitoring data and the second operation monitoring data, and the electric energy output adjustment parameters of the micro-grid system to the load unit can be flexibly adjusted by combining the electric energy demand relationship of the load unit in different states such as the good power supply state and the general power supply state. Therefore, the application can flexibly function to the load unit based on the micro-grid system with low cost and strong controllability, and can also improve the utilization rate of energy while meeting the electric energy demand of the load unit.

Description

Technical Field

[0001] The present application relates to the technical field of energy management, and particularly to an energy management method, device, equipment and medium based on a microgrid system. Background Art

[0002] With the increasing global dependence on renewable energy, the functional requirements of the power grid system are getting higher and higher. In traditional power grid systems, there are usually large-scale power generation devices, such as wind power generation and photovoltaic power generation. A large amount of manpower and material resources are required to construct and operate the entire power grid system to ensure effective power supply to the load unit and maintain the effective and healthy management of the power grid system. There are also some existing microgrid systems, but the energy management of these microgrid systems is not intelligent enough, and the energy utilization rate is low. Therefore, combining the disadvantages of the above two power grid systems, the present application proposes an energy management method applied to a microgrid system to solve the problems and pain points existing in the prior art. Summary of the Invention

[0003] The embodiments of the present application provide an energy management method, device, equipment and medium based on a microgrid system, which can improve the energy utilization rate on the basis of a microgrid system with low cost and simple structure.

[0004] On the one hand, an embodiment of the present application provides an energy management method based on a microgrid system, which is applied to a microgrid system. The microgrid system includes a wind power generation device, a photovoltaic power generation device, an energy storage device, a microgrid controller and a load unit; the wind power generation device and the photovoltaic power generation device can provide electric energy to the energy storage device and the load unit, and the energy storage device can also provide electric energy to the load unit; the method is executed by the microgrid controller, and the method includes: Obtain first operation monitoring data of the wind power generation device and the photovoltaic power generation device, and obtain second operation monitoring data of the energy storage device; Determine the power supply state of the microgrid system according to the first operation monitoring data and the second operation monitoring data; Determine an electric energy output adjustment parameter of the microgrid system for the load unit according to the power supply state and the electric energy demand relationship of the load unit.

[0005] Optionally, the first operation monitoring data includes first operation parameters of the wind power generation device and second operation parameters of the photovoltaic power generation device. The first operation parameters include a first current direction and a first output power; the second operation parameters include a second current direction and a second output power; the second operation monitoring data includes third operation parameters of the energy storage device, and the third operation parameters include a third current direction and a third output power.

[0006] Optionally, determining the power supply state of the microgrid system according to the first operation monitoring data and the second operation monitoring data includes: Determining the power transmission direction of the microgrid system according to the first current direction, the second current direction, and the third current direction; Determining the power output level of the microgrid system according to the first output power, the second output power, and the third output power; Determining the power supply state of the microgrid system according to the power transmission direction and the power output level.

[0007] Optionally, determining the power transmission direction of the microgrid system according to the first current direction, the second current direction, and the third current direction includes: If the first current direction, the second current direction, and the third current direction are all the first preset current direction, determining that the power transmission direction of the microgrid system is forward transmission; If the first current direction, the second current direction, and the third current direction are all the second preset current direction, determining that the power transmission direction of the microgrid system is reverse reception; Wherein, the first preset current direction is from the wind power generation device or the photovoltaic power generation device or the energy storage device towards the load unit; the first preset current direction is from the load unit towards the wind power generation device or the photovoltaic power generation device or the energy storage device.

[0008] Optionally, determining the power output level of the microgrid system according to the first output power, the second output power, and the third output power includes: Determining the first power output parameter of the wind power generation device according to a preset first output coefficient and the first output power; Determining the second power output parameter of the photovoltaic power generation device according to a preset second output coefficient and the second output power; Determining the third power output parameter of the energy storage device according to a preset third output coefficient and the third output power; If the sum of the first power output parameter, the second power output parameter, and the third power output parameter is within a first preset range, determining that the power output level is level one; If the sum of the first power output parameter, the second power output parameter, and the third power output parameter is within a second preset range, determining that the power output level is level two; If the sum of the first power output parameter, the second power output parameter and the third power output parameter is within a third preset range, determining that the power output level is level three; The maximum value of the first preset range is smaller than the minimum value of the second preset range, and the maximum value of the second preset range is smaller than the minimum value of the third preset range.

[0009] Optionally, determining the power supply state of the microgrid system according to the power transmission direction and the power output level includes: If the electric energy transmission direction is reverse reception and the electric energy output level is level 2 or level 3, then determining that the power supply state is a power supply reverse flow state; If the electric energy transmission direction is forward transmission and the electric energy output level is level one, then determining that the power supply state is a power shortage state; If the electric energy transmission direction is forward transmission and the electric energy output level is level 2, then determining that the power supply state is a sufficient power state; If the electric energy transmission direction is forward transmission and the electric energy output level is level three, it is determined that the power supply state is an electric energy pre-saturation state.

[0010] Optionally, determining the power output adjustment parameter of the microgrid system to the load unit according to the relationship between the power supply state and the power demand of the load unit includes: If the power supply state is the power supply reverse flow state and the power demand relationship is the first preset demand, determining the power output adjustment parameter to be a first adjustment parameter, wherein the first adjustment parameter is used to characterize a substantial reduction in the first output power and / or the second output power and / or the third output power; If the power supply state is the power shortage state and the power demand relationship is the second preset demand, determining the power output adjustment parameter to be a second adjustment parameter, wherein the second adjustment parameter is used to characterize a substantial increase in the first output power and / or the second output power and / or the third output power; If the power supply state is the sufficient power state and the power demand relationship is the first preset demand, determining that the power output adjustment parameter is a third adjustment parameter, the third adjustment parameter is used to represent a small reduction in the first output power and / or the second output power and / or the third output power; If the power supply state is the sufficient power state and the power demand relationship is the second preset demand, determining that the power output adjustment parameter is a fourth adjustment parameter, the fourth adjustment parameter is used to represent a small increase in the first output power and / or the second output power and / or the third output power; If the power supply state is the electric energy pre-saturation state and the electric energy demand relationship is the first preset demand, determine that the electric energy output adjustment parameter is the fifth adjustment parameter, where the fifth adjustment parameter is used to characterize a significant reduction in the first output power and / or the second output power and / or the third output power; If the power supply state is the electric energy pre-saturation state and the electric energy demand relationship is the second preset demand, determine that the electric energy output adjustment parameter is the sixth adjustment parameter, where the sixth adjustment parameter is used to characterize a slight reduction in the first output power and / or the second output power and / or the third output power.

[0011] According to one aspect of the embodiments of the present application, an energy management device based on a microgrid system is provided, which is applied to the microgrid system. The microgrid system includes a wind power generation device, a photovoltaic power generation device, an energy storage device, a microgrid controller, and a load unit; the wind power generation device and the photovoltaic power generation device can supply electric energy to the energy storage device and the load unit, and the energy storage device can also supply electric energy to the load unit; the device includes: An acquisition unit, configured to acquire first operation monitoring data of the wind power generation device and the photovoltaic power generation device, and acquire second operation monitoring data of the energy storage device; A first determination unit, configured to determine the power supply state of the microgrid system according to the first operation monitoring data and the second operation monitoring data; A second determination unit, configured to determine an electric energy output adjustment parameter of the microgrid system for the load unit according to the power supply state and the electric energy demand relationship of the load unit.

[0012] On the other hand, embodiments of the present application provide an electronic device, including a processor and a memory; The memory is used to store a computer program; The processor executes the computer program to implement the foregoing method.

[0013] On the other hand, embodiments of the present application provide a computer-readable storage medium, where the storage medium stores a computer program, and the computer program is executed by a processor to implement the foregoing method.

[0014] The embodiments of the present application have at least the following beneficial effects: According to an energy management method, device, equipment, and medium based on a microgrid system provided by the present application, the energy obtained from the wind power generation device and the photovoltaic power generation device can be stored in the energy storage device or directly delivered to the load unit, and the electric energy stored in the energy storage device can also be delivered to the load unit when needed, providing diverse electric energy delivery methods to supply power to the load unit.

[0015] Further, by obtaining the first operation monitoring data of the wind power generation device and the photovoltaic power generation device and obtaining the second operation monitoring data of the energy storage device, and determining the power supply state of the microgrid system through the first operation monitoring data and the second operation monitoring data, the power output adjustment parameters of the microgrid system for the load unit can be flexibly adjusted in different states such as good power supply state and general power supply state in combination with the power demand relationship of the load unit. Therefore, the present application can flexibly supply power to the load unit based on a microgrid system with low cost and strong controllability, and can improve the energy utilization rate while meeting the power demand of the load unit. Description of the Drawings

[0016] The drawings are used to provide a further understanding of the technical solutions of the present application, and constitute a part of the specification. They are used together with the embodiments of the present application to explain the technical solutions of the present application, and do not constitute a limitation to the technical solutions of the present application.

[0017] Figure 1 It is a specific structural diagram of the microgrid system provided by the embodiment of the present application; Figure 2 It is a schematic flow chart of the energy management method based on the microgrid system provided by the embodiment of the present application; Figure 3 It is a block diagram of the energy management device based on the microgrid system provided by the embodiment of the present application Figure 4 It is a schematic structural diagram of an electronic device provided by the embodiment of the present application.

[0018] Reference Signs Photovoltaic power generation device 1, wind power generation device 2, energy storage device 3, microgrid controller 4, load unit 5, charging pile 51, air-conditioning load 52, lighting load 53, power sensor 6, meter 7, grid-connected inverter 8, energy storage converter 9, fan controller 10. Detailed Embodiments

[0019] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the embodiments of the present application. They are only examples of devices and methods that are consistent with some aspects of the embodiments of the present application described in detail in the appended claims.

[0020] It can be understood that the terms "first", "second", etc. used in this application may be used herein to describe various concepts, but unless otherwise specified, these concepts are not limited by these terms. These terms are only used to distinguish one concept from another. For example, without departing from the scope of the embodiments of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the words "if", "when" as used herein may be interpreted as "when...", "when...", or "in response to determining".

[0021] The terms "at least one", "a plurality of", "each", "any one", etc. used in this application, at least one includes one, two or more than two, a plurality of includes two or more than two, each refers to each one of the corresponding plurality, and any one refers to any one of the plurality.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used herein are only for the purpose of describing the embodiments of this application and are not intended to limit this application.

[0023] The following provides a detailed introduction to the specific hardware environment of this application. The specific structure diagram of the microgrid system of this application can be as Figure 1 shown. The microgrid system includes a wind power generation device, a photovoltaic power generation device, an energy storage device, a microgrid controller, and a load unit. Figure 2 It includes a photovoltaic power generation device 1, a wind power generation device 2, an energy storage device 3, a microgrid controller 4, a load unit 5, a charging pile 51, an air-conditioning load 52, a lighting load 53, a power sensor 6, a meter 7, a grid-connected inverter 8, an energy storage converter 9, and a fan controller 10. Among them, the microgrid controller 4 is communicatively connected to the grid-connected inverter 8, the energy storage converter 9, and the fan controller 10.

[0024] As Figure 2 shown, in the embodiments of this application, an energy management method based on a microgrid system is provided. The energy management method based on the microgrid system is applied to the above-mentioned microgrid system. The microgrid system includes a wind power generation device, a photovoltaic power generation device, an energy storage device, a microgrid controller, and a load unit; the wind power generation device and the photovoltaic power generation device can provide electric energy to the energy storage device and the load unit, and the energy storage device can also provide electric energy to the load unit; the method is executed by the microgrid controller. Refer to Figure 2 shown, the energy management method based on the microgrid system provided in the embodiments of this application specifically includes but is not limited to steps S1 to S3: In step S1, first operation monitoring data of the wind power generation device and the photovoltaic power generation device is obtained, and second operation monitoring data of the energy storage device is obtained.

[0025] Specifically, the first operation monitoring data includes first operation parameters of the wind power generation device and second operation parameters of the photovoltaic power generation device. The first operation parameters include a first current direction and a first output power; the second operation parameters include a second current direction and a second output power; the second operation monitoring data includes third operation parameters of the energy storage device, and the third operation parameters include a third current direction and a third output power.

[0026] Further, the current direction (the first current direction or the second current direction or the third current direction described in this application) can be from the microgrid system to the load unit, or from the load unit to the microgrid system. However, there is a reverse current problem when the current direction is from the load unit to the microgrid system. This application can precisely determine the power output adjustment parameters of the microgrid system to the load unit when detecting the reverse current problem, and timely prevent the continuous occurrence of the reverse current problem to avoid causing significant functional damage to the load unit and the microgrid system.

[0027] In step S2, the power supply state of the microgrid system is determined according to the first operation monitoring data and the second operation monitoring data.

[0028] Specifically, through the first operation monitoring data and the second operation monitoring data, the power generation data of the microgrid system can be known, and then the power supply state of the microgrid system can be determined according to the power generation data. For example, when the current photovoltaic power generation device and the wind power generation device generate more power, the power supply state is good at this time. When it is detected that too much power is provided to the load unit, resulting in a reverse current problem, the microgrid controller timely sends command signals to the grid-connected inverter, the energy storage converter, and the fan controller to reduce the output power and reduce the excessive power provided to the load unit to prevent the reverse current problem.

[0029] In an embodiment of the present application, the determining the power supply state of the microgrid system according to the first operation monitoring data and the second operation monitoring data includes: Determining the power transmission direction of the microgrid system according to the first current direction, the second current direction, and the third current direction; Determining the power output level of the microgrid system according to the first output power, the second output power, and the third output power; Determining the power supply state of the microgrid system according to the power transmission direction and the power output level.

[0030] Specifically, the power transmission direction of the microgrid system is determined by the first current direction, the second current direction, and the third current direction, that is, to determine whether the current is flowing from the microgrid system to the load unit or from the load unit to the microgrid system, so as to judge whether there is a current reverse situation.

[0031] In an embodiment of the present application, the determining of the power transmission direction of the microgrid system according to the first current direction, the second current direction, and the third current direction includes: If the first current direction, the second current direction, and the third current direction are all the first preset current directions, it is determined that the power transmission direction of the microgrid system is forward transmission; If the first current direction, the second current direction, and the third current direction are all the second preset current directions, it is determined that the power transmission direction of the microgrid system is reverse reception; Wherein, the first preset current direction is from the wind power generation device or the photovoltaic power generation device or the energy storage device towards the load unit; the first preset current direction is from the load unit towards the wind power generation device or the photovoltaic power generation device or the energy storage device.

[0032] Specifically, the first preset current direction is that the microgrid system flows to the load unit, which represents forward transmission at this time; the second preset current direction is that the load unit flows to the microgrid system, which represents reverse reception at this time.

[0033] In an embodiment of the present application, the determining of the power output level of the microgrid system according to the first output power, the second output power, and the third output power includes: Determine the first power output parameter of the wind power generation device according to the preset first output coefficient and the first output power; Determine the second power output parameter of the photovoltaic power generation device according to the preset second output coefficient and the second output power; Determine the third power output parameter of the energy storage device according to the preset third output coefficient and the third output power; If the sum of the first power output parameter, the second power output parameter, and the third power output parameter is within the first preset range, it is determined that the power output level is level one; If the sum of the first power output parameter, the second power output parameter, and the third power output parameter is within the second preset range, it is determined that the power output level is level two; If the sum of the first power output parameter, the second power output parameter, and the third power output parameter is within a third preset range, determine that the power output level is level three; Wherein, the maximum value of the first preset range is less than the minimum value of the second preset range, and the maximum value of the second preset range is less than the minimum value of the third preset range.

[0034] Specifically, the power output level of the microgrid system is determined by the first output power, the second output power, and the third output power. That is, the output powers of the photovoltaic power generation device, the wind power generation device, and the energy storage device are determined respectively by the parameters reported by the grid-connected inverter, the energy storage converter, and the wind turbine controller to the microgrid controller, that is, the power data output by each. Based on this, the power output level of the microgrid system is determined. The power supply status of the microgrid system can be determined through the power transmission direction and the power output level.

[0035] Furthermore, the preset first output coefficient, second output coefficient, and third output coefficient can be set arbitrarily. In this application, the first output coefficient, second output coefficient, and third output coefficient are 0.4, 0.4, and 0.2 respectively. The final power output level can be determined through the determined first power output parameter, second power output parameter, and third power output parameter. For example, if the sum of the first power output parameter, the second power output parameter, and the third power output parameter is 500 kilojoules, and at this time the first preset range is set to 1 kilojoule to 300 kilojoules, the second preset range is set to 301 kilojoules to 600 kilojoules, and the third preset range is set to 601 kilojoules and above, then the power output level is level two at this time.

[0036] In an embodiment of this application, the determining the power supply status of the microgrid system according to the power transmission direction and the power output level includes: If the power transmission direction is reverse reception and the power output level is level two or level three, determine that the power supply status is a power supply reverse flow status; If the power transmission direction is forward transmission and the power output level is level one, determine that the power supply status is a power shortage status; If the power transmission direction is forward transmission and the power output level is level two, determine that the power supply status is a power sufficient status; If the power transmission direction is forward transmission and the power output level is level three, determine that the power supply status is a power pre-saturation status.

[0037] Further, if the power transmission direction is reverse reception and the power output level is level two or three, it indicates that the microgrid system is in a power supply countercurrent state at this time. It is necessary to adjust the power output parameters to reduce the power output of the photovoltaic power generation device, the wind power generation device, and the energy storage device. It should be noted that when the power output level is level one, the power output is less at this time, and there will be no situation where the power transmission direction is reverse reception.

[0038] Similarly, if the power transmission direction is forward transmission and the power output level is level one, it is determined that the power supply state is a power shortage state. If the power transmission direction is forward transmission and the power output level is level two, it is determined that the power supply state is a power sufficient state. If the power transmission direction is forward transmission and the power output level is level three, it is determined that the power supply state is a power pre-saturation state. The power pre-saturation state is the critical point of saturation. At this time, the power is very sufficient, and it is necessary to pay attention in time whether the countercurrent situation occurs.

[0039] In step S3, according to the relationship between the power supply state and the power demand of the load unit, the power output adjustment parameter of the microgrid system for the load unit is determined.

[0040] In an embodiment of the present application, determining the power output adjustment parameter of the microgrid system for the load unit according to the relationship between the power supply state and the power demand of the load unit includes: If the power supply state is the power supply countercurrent state and the power demand relationship is the first preset demand, it is determined that the power output adjustment parameter is the first adjustment parameter, and the first adjustment parameter is used to represent a substantial reduction in the first output power and / or the second output power and / or the third output power; If the power supply state is the power shortage state and the power demand relationship is the second preset demand, it is determined that the power output adjustment parameter is the second adjustment parameter, and the second adjustment parameter is used to represent a substantial increase in the first output power and / or the second output power and / or the third output power; If the power supply state is the power sufficient state and the power demand relationship is the first preset demand, it is determined that the power output adjustment parameter is the third adjustment parameter, and the third adjustment parameter is used to represent a slight reduction in the first output power and / or the second output power and / or the third output power; If the power supply state is the power sufficient state and the power demand relationship is the second preset demand, it is determined that the power output adjustment parameter is the fourth adjustment parameter, and the fourth adjustment parameter is used to represent a slight increase in the first output power and / or the second output power and / or the third output power; If the power supply state is the power pre-saturation state and the power demand relationship is the first preset demand, determine that the power output adjustment parameter is the fifth adjustment parameter, and the fifth adjustment parameter is used to characterize a large reduction in the first output power and / or the second output power and / or the third output power; If the power supply state is the power pre-saturation state and the power demand relationship is the second preset demand, determine that the power output adjustment parameter is the sixth adjustment parameter, and the sixth adjustment parameter is used to characterize a small reduction in the first output power and / or the second output power and / or the third output power.

[0041] Specifically, the power demand relationship of the load unit, that is, the power demands of the charging pile, the air-conditioning load, and the lighting load, are different at different times. Therefore, the first preset demand can be used to characterize that the power demand of the load unit is lower than the preset power threshold, that is, the power demand of the load unit is lower at this time. The second preset demand can be used to characterize that the power demand of the load unit is higher than the preset power threshold, that is, the power demand of the load unit is more at this time.

[0042] The present application provides a microgrid system integrating wind power generation, photovoltaic power generation, energy storage batteries, and charging piles. By means of an energy management method based on the microgrid system, higher-efficiency utilization of energy is achieved, and it has an anti-backflow function to ensure the stable operation of the power grid. The microgrid system has the characteristics of simple structure, reliable operation, and high energy utilization rate, and is applicable to various scenarios requiring distributed energy access and power management. At the same time, the microgrid system can also intelligently schedule the working states of various components in the microgrid system according to the load demand and the power generation situation of renewable energy, realize the optimized operation of the microgrid system, and provide strong support for the wide application of renewable energy.

[0043] According to one aspect of the present application, an energy management device based on a microgrid system is also proposed, as Figure 3 shown, Figure 3 is a block diagram of an energy management device based on a microgrid system. The energy management device based on the microgrid system is applied to the microgrid system, and the microgrid system includes a wind power generation device, a photovoltaic power generation device, an energy storage device, a microgrid controller, and a load unit; the wind power generation device and the photovoltaic power generation device can supply power to the energy storage device and the load unit, and the energy storage device can also supply power to the load unit. The device 300 includes: an acquisition unit 301, a first determination unit 302, and a second determination unit 303.

[0044] An acquisition unit 301, configured to acquire first operation monitoring data of the wind power generation device and the photovoltaic power generation device, and acquire second operation monitoring data of the energy storage device; A first determination unit 302, configured to determine a power supply state of the microgrid system according to the first operation monitoring data and the second operation monitoring data; A second determination unit 303, configured to determine an electric energy output adjustment parameter of the microgrid system for the load unit according to the power supply state and the relationship between the electric energy demand of the load unit.

[0045] An embodiment of the present application also discloses an electronic device, including: At least one processor; At least one memory, configured to store at least one program; When the at least one program is executed by the at least one processor, the at least one processor implements the method as described above.

[0046] It can be understood that the content in the specific embodiments of the above method is applicable to the embodiments of this electronic device. The functions specifically implemented by the embodiments of this electronic device are the same as those of the embodiments of the above method, and the beneficial effects achieved are also the same as those of the embodiments of the above method.

[0047] Exemplarily, refer to Figure 4 , Figure 4 which is a schematic structural diagram of an electronic device provided in an embodiment of the present application. Taking the electronic device as a terminal device as an example, Figure 4 in which, the terminal device 1200 may include an RF (Radio Frequency) circuit 1210, a memory 1220 including one or more computer-readable storage media, an input unit 1230, a display unit 1240, a sensor 1250, an audio circuit 1260, a short-range wireless transmission module 1270, a processor 1280 including one or more processing cores, and a power supply 1290 and other components. Those skilled in the art can understand that Figure 4 the device structure shown in does not constitute a limitation on the terminal device, and may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements.

[0048] The RF circuit 1210 can be used for receiving and transmitting information or signals during a call. Specifically, after receiving the downlink information from the base station, it is handed over to one or more processors 1180 for processing. Additionally, data related to the uplink is sent to the base station. Generally, the RF circuit 1210 includes, but is not limited to, antennas, at least one amplifier, a tuner, one or more oscillators, a Subscriber Identity Module (SIM) card, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, etc. In addition, the RF circuit 1210 can also communicate with the network and other devices via wireless communication. The wireless communication can use any communication standard or protocol, including but not limited to GSM (Global System of Mobile communication), GPRS (General Packet Radio Service), CDMA (Code Division Multiple Access), WCDMA (Wideband Code Division Multiple Access), LTE (Long Term Evolution), email, SMS (Short Messaging Service), etc.

[0049] The memory 1220 can be used to store software programs and modules (or units). The processor 1280 executes various functional applications and data processing by running the software programs and modules (or units) stored in the memory 1220. The memory 1220 mainly includes a program storage area and a data storage area. Among them, the program storage area can store an operating system, application programs required for at least one function (such as a sound playback function, an image playback function), etc.; the data storage area can store data created according to the use of the terminal device 1200 (such as audio data, a phone book), etc. In addition, the memory 1220 can include high-speed random access memory and can also include non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices. Correspondingly, the memory 1220 can also include a memory controller to provide access to the memory 1220 by the processor 1280 and the input unit 1230. Although Figure 4 the RF circuit 1210 is shown, it can be understood that it does not necessarily constitute a part of the terminal device 1200 and can be omitted entirely within the scope of not changing the essence of the invention according to needs.

[0050] The input unit 1230 can be used to receive input numerical or character information, and generate keyboard, mouse, joystick, optical or trackball signal inputs related to object settings and function controls. Specifically, the input unit 1230 can include a touch-sensitive surface 1231 and other input devices 1232. The touch-sensitive surface 1231, also known as a touch display screen or a touchpad, can collect touch operations of an object on or near it (such as operations of the object using any suitable object or accessory such as a finger, a stylus, etc. on or near the touch-sensitive surface 1231), and drive corresponding connection devices according to a preset program. Optionally, the touch-sensitive surface 1231 can include two parts: a touch detection device and a touch controller. Among them, the touch detection device detects the touch orientation of the object, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it to the processor 1280, and can receive and execute instructions sent by the processor 1280. In addition, various types such as resistive, capacitive, infrared, and surface acoustic wave can be used to implement the touch-sensitive surface 1231. In addition to the touch-sensitive surface 1231, the input unit 1230 can also include other input devices 1232. Specifically, the other input devices 1232 can include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, power-on keys, etc.), trackballs, mice, joysticks, etc.

[0051] The display unit 1240 can be used to display information input by an object or information provided to the object and control various graphical object interfaces of the terminal device 1200, and these graphical object interfaces can be composed of graphics, text, icons, videos and any combination thereof. The display unit 1140 can include a display panel 1241. Optionally, the display panel 1241 can be configured in forms such as LCD (Liquid Crystal Display) and OLED (Organic Light-Emitting Diode). Further, the touch-sensitive surface 1231 can cover the display panel 1241. After the touch-sensitive surface 1231 detects a touch operation on or near it, it is transmitted to the processor 1280 to determine the type of touch event, and then the processor 1280 provides a corresponding visual output on the display panel 1241 according to the type of touch event. Although in Figure 4 the touch-sensitive surface 1231 and the display panel 1241 are implemented as two independent components to achieve input and input functions, in some embodiments, the touch-sensitive surface 1231 and the display panel 1241 can be integrated to achieve input and output functions.

[0052] The terminal device 1200 may further include at least one sensor 1250, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor. Among them, the ambient light sensor can adjust the brightness of the display panel 1241 according to the brightness of the ambient light, and the proximity sensor can turn off the display panel 1241 or the backlight when the terminal device 1200 is moved to the ear. As a kind of motion sensor, the gravity acceleration sensor can detect the magnitude of acceleration in all directions (generally three axes), and can detect the magnitude and direction of gravity when stationary, and can be used in applications for identifying the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as for other sensors such as gyroscopes, barometers, hygrometers, thermometers, and infrared sensors that the terminal device 1200 may also be configured with, they will not be elaborated here.

[0053] The audio circuit 1260, the speaker 1261, and the microphone 1262 can provide an audio interface between the object and the terminal device 1200. The audio circuit 1260 can transmit the electrical signal converted from the received audio data to the speaker 1261, and the speaker 1261 converts it into a sound signal for output; on the other hand, the microphone 1262 converts the collected sound signal into an electrical signal, which is received by the audio circuit 1260 and then converted into audio data. After the audio data is output to the processor 1280 for processing, it is sent to another electronic device through the RF circuit 1210, or the audio data is output to the memory 1220 for further processing. The audio circuit 1260 may also include an earphone jack to provide communication between the peripheral earphone and the terminal device 1200.

[0054] The short-range wireless transmission module 1270 can be a WIFI (wireless fidelity) module, a Bluetooth module, an infrared module, etc. The terminal device 1200 can transmit information with the wireless transmission module set on other devices through the short-range wireless transmission module 1270.

[0055] The processor 1280 is the control center of the terminal device 1200, connecting various parts of the entire device through various interfaces and lines. By running or executing the software programs or modules stored in the memory 1220, and by calling the data stored in the memory 1220, it executes various functions of the terminal device 1200 and processes data, thereby performing overall management and control of the device. Optionally, the processor 1280 may include one or more processing cores; optionally, the processor 1280 may integrate an application processor and a modem processor. Among them, the application processor mainly processes the operating system, the object interface, and application programs, etc., and the modem processor mainly processes wireless communication. It can be understood that the above-mentioned modem processor may not be integrated into the processor 1280 either.

[0056] The terminal device 1200 also includes a power supply 1290 (such as a battery) for powering each component. Optionally, the power supply 1290 can be logically connected to the processor 1280 through a power management system, so as to implement functions such as management of charging, discharging, and power consumption management through the power management system. The power supply 1290 can also include any components such as one or more DC or AC power supplies, a recharge system, a power failure detection circuit, a power converter or inverter, and a power status indicator.

[0057] Although not shown, the terminal device 1200 may also include a camera, a Bluetooth module, etc., which will not be elaborated here.

[0058] The embodiment of the present application also discloses a computer-readable storage medium, in which a program executable by a processor is stored. The program executable by the processor, when executed by the processor, is used to implement the method embodiment as described above.

[0059] It can be understood that the content in the above method embodiment is applicable to the computer-readable storage medium embodiment. The functions specifically implemented by the computer-readable storage medium embodiment are the same as those of the above method embodiment, and the beneficial effects achieved are also the same as those of the above method embodiment.

[0060] The embodiment of the present application also discloses a computer program product or a computer program. The computer program product or the computer program includes computer instructions, and the computer instructions are stored in the above computer-readable storage medium; Figure 4 The processor of the shown electronic device can read the computer instructions from the above computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes the above method.

[0061] It can be understood that the content in the above method embodiment is applicable to the computer program product or the computer program embodiment. The functions specifically implemented by the computer program product or the computer program embodiment are the same as those of the above method embodiment, and the beneficial effects achieved are also the same as those of the above method embodiment.

[0062] In some alternative embodiments, the functions / operations recited in the block diagrams may not occur in the order noted in the operational illustrations. For example, depending upon the functionality / operation involved, two blocks shown in succession may actually be executed substantially concurrently or the blocks may sometimes be executed in the reverse order. Further, the embodiments presented and described in the flowcharts of the present application are provided by way of example in order to provide a more thorough understanding of the technology. The disclosed methods are not limited to the operations and logical flows presented herein. Alternative embodiments are contemplated in which the order of various operations is altered and in which sub-operations described as part of a larger operation are performed independently.

[0063] Moreover, although the present application has been described in the context of functional modules, it should be understood that, unless otherwise stated to the contrary, one or more of the functions and / or features may be integrated in a single physical device and / or software module, or one or more functions and / or features may be implemented in separate physical devices or software modules. It should also be understood that a detailed discussion of the actual implementation of each module is not necessary for an understanding of the present application. Rather, given the attributes, functions and internal relationships of the various functional modules in the devices disclosed herein, the actual implementation of the modules will be understood within the ordinary skill of an engineer. Thus, those skilled in the art will be able to implement the present application as set forth in the claims without undue experimentation. It should also be understood that the particular concepts disclosed are merely illustrative and not intended to limit the scope of the present application, the scope of which is determined by the full scope of the appended claims and their equivalents.

[0064] If the functionality is implemented in the form of a software functional unit and sold or used as a stand-alone product, it may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application, in essence or the part that contributes to the prior art or part of the technical solution, may be embodied in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods of the various embodiments of the present application. The foregoing storage medium includes: various media that can store program codes, such as a USB flash drive, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disc.

[0065] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a definite sequence list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable storage medium for use by an instruction execution system, apparatus or device (such as a computer-based system, a system including a processor, or other systems that can fetch and execute instructions from the instruction execution system, apparatus or device), or used in combination with these instruction execution systems, apparatus or devices. For the purposes of this specification, a "computer-readable storage medium" can be any device that can contain, store, communicate, propagate or transport a program for use by or in combination with an instruction execution system, apparatus or device.

[0066] It should be understood that various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. In the above embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, any one or a combination of the following techniques well known in the art can be used: discrete logic circuits having logic gate circuits for implementing logical functions on data signals, application specific integrated circuits having appropriate combinational logic gate circuits, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.

[0067] In the above description of this specification, the descriptions referring to the terms "one embodiment / example", "another embodiment / example" or "certain embodiments / examples", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0068] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

[0069] The above has specifically described the preferred embodiments of the present application, but the present application is not limited to the embodiments. Those skilled in the art can make various equivalent deformations or substitutions without departing from the spirit of the present application, and these equivalent deformations or substitutions are all included within the scope defined by the claims of the present application.

Claims

1. An energy management method based on a microgrid system, characterized in that, Applied to a microgrid system, the microgrid system includes a wind power generation device, a photovoltaic power generation device, an energy storage device, a microgrid controller, and a load unit; the wind power generation device and the photovoltaic power generation device can supply electric energy to the energy storage device and the load unit, and the energy storage device can also supply electric energy to the load unit; The method is executed by the microgrid controller, and the method includes: Obtain first operation monitoring data of the wind power generation device and the photovoltaic power generation device, and obtain second operation monitoring data of the energy storage device; Determine the power supply state of the microgrid system according to the first operation monitoring data and the second operation monitoring data; Determine the power output adjustment parameter of the microgrid system for the load unit according to the power supply state and the power demand relationship of the load unit.

2. The energy management method based on the microgrid system according to claim 1, wherein The first operation monitoring data includes first operation parameters of the wind power generation device and second operation parameters of the photovoltaic power generation device, the first operation parameters include a first current direction and a first output power; the second operation parameters include a second current direction and a second output power; The second operation monitoring data includes third operation parameters of the energy storage device, and the third operation parameters include a third current direction and a third output power.

3. The energy management method based on a microgrid system according to claim 2, wherein The determining the power supply state of the microgrid system according to the first operation monitoring data and the second operation monitoring data includes: Determine the electric energy transmission direction of the microgrid system according to the first current direction, the second current direction, and the third current direction; Determine the electric energy output level of the microgrid system according to the first output power, the second output power, and the third output power; Determine the power supply state of the microgrid system according to the electric energy transmission direction and the electric energy output level.

4. The energy management method based on a microgrid system according to claim 3, characterized in that The determining the electric energy transmission direction of the microgrid system according to the first current direction, the second current direction, and the third current direction includes: If the first current direction, the second current direction, and the third current direction are all the first preset current direction, determine that the electric energy transmission direction of the microgrid system is forward transmission; If the first current direction, the second current direction, and the third current direction are all the second preset current direction, determine that the electric energy transmission direction of the microgrid system is reverse reception; Wherein, the first preset current direction is from the wind power generation device or the photovoltaic power generation device or the energy storage device towards the load unit; the first preset current direction is from the load unit towards the wind power generation device or the photovoltaic power generation device or the energy storage device.

5. The energy management method based on a microgrid system according to claim 4, wherein The determining the electric energy output level of the microgrid system according to the first output power, the second output power, and the third output power includes: Determine the first electric energy output parameter of the wind power generation device according to a preset first output coefficient and the first output power; Determine the second electric energy output parameter of the photovoltaic power generation device according to a preset second output coefficient and the second output power; Determine the third electric energy output parameter of the energy storage device according to a preset third output coefficient and the third output power; If the sum of the first electric energy output parameter, the second electric energy output parameter, and the third electric energy output parameter is within a first preset range, determine that the electric energy output level is level one; If the sum of the first electric energy output parameter, the second electric energy output parameter, and the third electric energy output parameter is within a second preset range, determine that the electric energy output level is level two; If the sum of the first electric energy output parameter, the second electric energy output parameter, and the third electric energy output parameter is within a third preset range, determine that the electric energy output level is level three; Wherein, the maximum value of the first preset range is less than the minimum value of the second preset range, and the maximum value of the second preset range is less than the minimum value of the third preset range.

6. The energy management method based on a microgrid system according to claim 5, characterized in that The determining of the power supply state of the microgrid system according to the power transmission direction and the electric energy output level includes: If the power transmission direction is reverse reception and the electric energy output level is level two or level three, determine that the power supply state is a power supply reverse flow state; If the power transmission direction is forward transmission and the electric energy output level is level one, determine that the power supply state is a power shortage state; If the power transmission direction is forward transmission and the electric energy output level is level two, determine that the power supply state is a power sufficient state; If the power transmission direction is forward transmission and the electric energy output level is level three, determine that the power supply state is a power pre-saturation state.

7. The energy management method based on a microgrid system according to claim 6, wherein The determining of the electric energy output adjustment parameter of the microgrid system for the load unit according to the power supply state and the electric energy demand relationship of the load unit includes: If the power supply state is the power supply reverse flow state and the electric energy demand relationship is a first preset demand, determine that the electric energy output adjustment parameter is a first adjustment parameter, and the first adjustment parameter is used to characterize a substantial reduction in the first output power and / or the second output power and / or the third output power; If the power supply state is the power shortage state and the electric energy demand relationship is a second preset demand, determine that the electric energy output adjustment parameter is a second adjustment parameter, and the second adjustment parameter is used to characterize a substantial increase in the first output power and / or the second output power and / or the third output power; If the power supply state is the power sufficient state and the electric energy demand relationship is the first preset demand, determine that the electric energy output adjustment parameter is a third adjustment parameter, and the third adjustment parameter is used to characterize a slight reduction in the first output power and / or the second output power and / or the third output power; If the power supply state is the power sufficient state and the electric energy demand relationship is the second preset demand, determine that the electric energy output adjustment parameter is a fourth adjustment parameter, and the fourth adjustment parameter is used to characterize a slight increase in the first output power and / or the second output power and / or the third output power; If the power supply state is the power pre-saturation state and the power demand relationship is the first preset demand, determine that the power output adjustment parameter is the fifth adjustment parameter, and the fifth adjustment parameter is used to characterize a substantial reduction in the first output power and / or the second output power and / or the third output power; If the power supply state is the power pre-saturation state and the power demand relationship is the second preset demand, determine that the power output adjustment parameter is the sixth adjustment parameter, and the sixth adjustment parameter is used to characterize a slight reduction in the first output power and / or the second output power and / or the third output power.

8. An energy management device based on a microgrid system, characterized in that, Applied to a microgrid system, the microgrid system includes a wind power generation device, a photovoltaic power generation device, an energy storage device, a microgrid controller, and a load unit; the wind power generation device and the photovoltaic power generation device can supply power to the energy storage device and the load unit, and the energy storage device can also supply power to the load unit; the device includes: An acquisition unit, configured to acquire first operation monitoring data of the wind power generation device and the photovoltaic power generation device, and acquire second operation monitoring data of the energy storage device; A first determination unit, configured to determine the power supply state of the microgrid system according to the first operation monitoring data and the second operation monitoring data; A second determination unit, configured to determine a power output adjustment parameter of the microgrid system for the load unit according to the power supply state and the power demand relationship of the load unit.

9. An electronic device, characterized in that, The electronic device includes a memory and a processor, the memory stores a computer program, and when the processor executes the computer program, it implements the energy management method based on the microgrid system according to any one of claims 1 to 7.

10. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the energy management method based on the microgrid system according to any one of claims 1 to 7.

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