A microgrid energy management and control system
By designing a microgrid energy management and control system, and utilizing ZigBee network and wireless communication module to achieve real-time monitoring and management of microgrid data, the problem of stable operation of microgrids is solved, and the security and reliability of the system are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN QINGCHEN ZHIHONG TECHNOLOGY CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-06-26
AI Technical Summary
In existing technologies, it is difficult to effectively monitor and manage the stable operation of microgrids, resulting in system instability and insufficient security.
A microgrid energy management and control system was designed, including a measurement device node, a main coordinator node, and a remote monitoring center. Data is collected using voltage transformers, current transformers, and energy metering chips, and transmitted to the remote monitoring center via a ZigBee network for management and control. Combined with a dual-processor structure of MCU+DSP and a 4G/5G wireless communication module, real-time data monitoring and alarm functions are realized.
It enables data measurement and monitoring during the operation of microgrids, providing a safe and reliable foundation, reducing costs and improving system stability and reliability.
Smart Images
Figure CN224418509U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of microgrid technology, and in particular relates to a microgrid energy management and control system. Background Technology
[0002] With the increasing prominence of energy and environmental issues, developing a low-carbon economy, building an ecological civilization, and achieving sustainable development have become a universal consensus in human society. Distributed generation, such as photovoltaic power generation and wind power generation, makes full use of renewable energy. Microgrids combine distributed generation, energy storage devices, and loads to form a controllable power supply system, which is an important way to make full use of renewable energy generation. Therefore, the stable operation of microgrids is a current research focus. Summary of the Invention
[0003] In view of this, the present invention aims to overcome the shortcomings of the above-mentioned problems in the prior art and propose a microgrid energy management and control system.
[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:
[0005] A microgrid energy management and control system includes a measurement device node, a main coordinator node, and a remote monitoring center; the measurement device node is connected to the main coordinator node, and the main coordinator node is connected to the remote monitoring center.
[0006] The measurement device node includes a measurement device, a ZigBee module, and a power supply module. The measurement device includes a voltage transformer, a current transformer, an energy metering chip, and a data processing unit. The voltage transformer, current transformer, and energy metering chip are respectively connected to the data processing unit. The voltage transformer and current transformer are also respectively connected to the energy metering chip. The data processing unit includes a low-voltage main control board and a high-voltage main control board. The low-voltage main control board includes a central processing unit module, a memory module, and an interface module. The memory module and the interface module are electrically connected to the central processing unit module. The central processing unit module adopts a dual-processor structure of MCU+DSP. The MCU is responsible for system management and communication, and the DSP is used for data processing. The high-voltage main control board includes a power supply module, an analog signal acquisition module, and an analog signal output module. The low-voltage main control board and the high-voltage main control board are connected via a connector.
[0007] The master coordinator node includes a ZigBee transceiver module, a microcontroller, and a wireless communication module. The ZigBee transceiver module is electrically connected to the microcontroller, and the microcontroller is connected to the remote monitoring center through the wireless communication module.
[0008] Furthermore, the power metering chip used is ADE7878.
[0009] Furthermore, the microcontroller adopts a single-chip microcomputer minimum system, including a single-chip microcomputer, a power supply circuit, a clock circuit, a reset circuit, and a JTAG emulation and debugging circuit. The power supply circuit, clock circuit, reset circuit, and JTAG emulation and debugging circuit are all electrically connected to the single-chip microcomputer.
[0010] Furthermore, the wireless communication module includes a 4G / 5G wireless network communication module.
[0011] Furthermore, the remote monitoring center includes a host computer and a server.
[0012] Furthermore, the host computer is also connected to a smart terminal.
[0013] Furthermore, the host computer is also equipped with an alarm.
[0014] Furthermore, the low-voltage main control board is also equipped with a comparator, which is connected to the central processing unit module.
[0015] Compared with existing technologies, the microgrid energy management and control system described in this utility model has the following advantages:
[0016] This invention enables the measurement and monitoring of data during the operation of a microgrid, providing a solid and reliable foundation for the safe and stable operation of the microgrid. This invention also utilizes a ZigBee network for data transmission, which is low-cost and highly reliable. Attached Figure Description
[0017] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:
[0018] Figure 1 This is a schematic diagram of the structure of a microgrid energy management and control system according to the present invention;
[0019] Figure 2 This is a schematic diagram of a microgrid energy management and control system according to the present invention.
[0020] Figure 3 This is a schematic diagram of the reset circuit of this utility model.
[0021] Explanation of reference numerals in the attached figures
[0022] 1-Measurement device node; 2-Main coordinator node; 3-Remote monitoring center; 4-Intelligent terminal. Detailed Implementation
[0023] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other.
[0024] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0026] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0027] like Figure 1-2 As shown, this utility model provides a microgrid energy management and control system, including a measurement device node 1, a main coordinator node 2, and a remote monitoring center 3; the measurement device node 1 is connected to the main coordinator node 2, and the main coordinator node 2 is connected to the remote monitoring center 3;
[0028] Measurement device node 1 includes a measurement device, a ZigBee module, and a power supply module. The measurement device includes a voltage transformer, a current transformer, an energy metering chip, and a data processing unit. The voltage transformer, current transformer, and energy metering chip are respectively connected to the data processing unit. The voltage transformer and current transformer are also respectively connected to the energy metering chip. The data processing unit includes a low-voltage main control board and a high-voltage main control board. The low-voltage main control board includes a central processing unit module, a memory module, and an interface module. The memory module and the interface module are electrically connected to the central processing unit module. The central processing unit module adopts a dual-processor structure of MCU+DSP. The MCU is responsible for system management and communication, and the DSP is used for data processing. The high-voltage main control board includes a power supply module, an analog signal acquisition module, and an analog signal output module. The low-voltage main control board and the high-voltage main control board are connected through a connector to realize signal communication.
[0029] The main coordinator node 2 includes a ZigBee transceiver module, a microcontroller, and a wireless communication module. The ZigBee transceiver module is electrically connected to the microcontroller, and the microcontroller is connected to the remote monitoring center 3 through the wireless communication module.
[0030] Specifically, the power metering chip used is ADE7878.
[0031] Specifically, the microcontroller adopts a single-chip microcomputer minimum system, including a single-chip microcomputer, a power supply circuit, a clock circuit, a reset circuit, and a JTAG emulation and debugging circuit. The power supply circuit, clock circuit, reset circuit, and JTAG emulation and debugging circuit are all electrically connected to the single-chip microcomputer. The reset circuit of this utility model is as follows: Figure 3 As shown, the monitoring chip SP706S is used.
[0032] Specifically, the wireless communication module includes a 4G / 5G wireless network communication module.
[0033] Specifically, the remote monitoring center 3 includes a host computer and a server.
[0034] Specifically, the host computer is also connected to the smart terminal 4.
[0035] Specifically, the host computer is also equipped with an alarm.
[0036] Specifically, the low-voltage main control board is also equipped with a comparator, which is connected to the central processing unit module.
[0037] This invention distributes measurement device nodes among distributed power sources and energy storage devices in a microgrid. It collects real-time operating data from the microgrid's underlying layers through voltage transformers, current transformers, and energy metering chips, and transmits this data to a remote monitoring center via a ZigBee network for management. The remote monitoring center can then control and manage the microgrid based on the received data to ensure its stable operation.
[0038] This invention utilizes voltage transformers to collect voltage data from various modules in a microgrid system in real time, compares the data with a threshold set in a comparator, and sends the results to a host computer via a ZigBee network. The host computer then determines whether the data is abnormal based on the results, and if an abnormality is detected, it alerts relevant personnel to handle the situation.
[0039] This invention utilizes a current transformer to collect current data from each module in a microgrid system in real time, compares it with a threshold set in a comparator, and sends the result to a host computer via a ZigBee network. The host computer then determines whether the data is abnormal based on the result, and if an abnormality is detected, it alerts relevant personnel to handle the situation.
[0040] This invention inputs data from voltage transformers and current transformers into an energy metering chip to calculate energy consumption, and sends the results to a host computer via a ZigBee network. The host computer then determines whether the energy data is abnormal based on the results, and if an abnormality is detected, it alerts relevant personnel to handle the issue.
[0041] This invention also achieves high-voltage and low-voltage isolation through a low-voltage main control board and a high-voltage main control board to prevent electrical interference.
[0042] It should be noted that all components used in this utility model are existing products, and the connection relationships between the components are also conventional connection relationships in this field.
[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A microgrid energy management and control system, characterized by: It includes a measurement device node (1), a main coordinator node (2), and a remote monitoring center (3); the measurement device node (1) is connected to the main coordinator node (2), and the main coordinator node (2) is connected to the remote monitoring center (3); The measurement device node (1) includes a measurement device, a ZigBee module, and a power supply module. The measurement device includes a voltage transformer, a current transformer, an energy metering chip, and a data processing unit. The voltage transformer, current transformer, and energy metering chip are respectively connected to the data processing unit. The voltage transformer and current transformer are also respectively connected to the energy metering chip. The data processing unit includes a low-voltage main control board and a high-voltage main control board. The low-voltage main control board includes a central processing unit module, a memory module, and an interface module. The memory module and the interface module are electrically connected to the central processing unit module. The central processing unit module adopts a dual-processor structure of MCU+DSP. The MCU is responsible for system management and communication, and the DSP is used for data processing. The high-voltage main control board includes a power supply module, an analog signal acquisition module, and an analog signal output module. The low-voltage main control board and the high-voltage main control board are connected by a plug-in connector. The main coordinator node (2) includes a ZigBee transceiver module, a microcontroller, and a wireless communication module. The ZigBee transceiver module is electrically connected to the microcontroller, and the microcontroller is connected to the remote monitoring center (3) through the wireless communication module.
2. The microgrid energy management and control system of claim 1, wherein: The power metering chip used is ADE7878.
3. The microgrid energy management and control system of claim 1, wherein: The microcontroller adopts a single-chip microcomputer minimum system, including a single-chip microcomputer, a power supply circuit, a clock circuit, a reset circuit, and a JTAG emulation and debugging circuit. The power supply circuit, clock circuit, reset circuit, and JTAG emulation and debugging circuit are all electrically connected to the single-chip microcomputer.
4. The microgrid energy management and control system of claim 1, wherein: The wireless communication module includes a 4G / 5G wireless network communication module.
5. The microgrid energy management and control system of claim 1, wherein: The remote monitoring center (3) includes a host computer and a server.
6. A microgrid energy management and control system according to claim 5, characterized in that: The host computer is also connected to a smart terminal (4).
7. A microgrid energy management and control system according to claim 5, characterized in that: The host computer is also equipped with an alarm.
8. A microgrid energy management and control system according to claim 1, characterized in that: The low-voltage main control board is also equipped with a comparator, which is connected to the central processing unit module.