Energy controller for micro-grid

Abstract

The utility model relates to an energy controller used for a micro-grid. The energy controller comprises a master control module, an RS485 communication module, a CAN communication module, an LORA communication module and a carrier communication module. The main control module is used for controlling and managing energy equipment of the micro-grid, and the main control module is electrically connected with the RS485 communication module, the controller local area network bus communication module, the local wireless communication module and the remote wireless communication module; the RS485 communication module is used for being in communication connection with energy equipment using an RS485 communication protocol in the micro-grid; the CAN communication module is used for communicating with energy equipment using a CAN communication protocol in the micro-grid; the LORA communication module is used for performing wireless communication with energy equipment in the micro-grid; and the carrier communication module is used for carrying out power line carrier communication with energy equipment in the micro-grid.

Description

Technical Field

[0001] The utility model relates to an energy controller for a microgrid, belonging to the technical field of energy controllers. Background Technique

[0002] With the increasing global attention to environmental protection and sustainable development, green energy has become an important direction for future energy development. As an important carrier for the development of modern industries, the energy consumption method in industrial parks and the grid connection operation technology between green energy in the park and the traditional power grid are of great significance for promoting the development of green energy.

[0003] The research status of green energy consumption technology in industrial parks shows a positive development trend. Through extensive literature reviews and case studies, it can be seen that certain research results have been achieved in this field. Currently, the research on green energy consumption technology in industrial parks mainly focuses on the efficient utilization of energy, the reduction of environmental pollution, and the stable operation of the system. At the same time, the relevant theories of microgrid intelligent management have also been deeply explored, providing new ideas and methods for energy management in industrial parks.

[0004] However, there is a lack of a core device in the green energy devices in the microgrid that can realize information and data collection, control, and management, and it is impossible to achieve interconnection and interoperability, and the ability to truly achieve grid connection operation with the power grid. Content of the Utility Model

[0005] In order to solve the problems existing in the above-mentioned prior art, the utility model proposes an energy controller for a microgrid.

[0006] The technical solution of the utility model is as follows:

[0007] The utility model provides an energy controller for a microgrid, including a main control module, an RS485 communication module, a CAN communication module, a LORA communication module, and a carrier communication module;

[0008] The main control module is used to control and manage the energy devices in the microgrid, and the main control module is electrically connected to the RS485 communication module, the controller area network bus communication module, the local wireless communication module, and the remote wireless communication module respectively;

[0009] The RS485 communication module is used to communicate and connect with the energy devices in the microgrid that use the RS485 communication protocol;

[0010] The CAN communication module is used to communicate with the energy devices in the microgrid that use the CAN communication protocol;

[0011] The LORA communication module is used to wirelessly communicate with the energy devices in the microgrid;

[0012] The carrier communication module is used for performing power line carrier communication with energy devices in the microgrid.

[0013] As a preferred embodiment of the present utility model, the LORA communication module includes an LORA main control unit, an LORA power amplifier unit, and an antenna;

[0014] One end of the LORA main control unit is connected to the main control module, one end of the LORA power amplifier unit is connected to the other end of the LORA main control unit, and one end of the antenna is connected to the other end of the LORA power amplifier unit;

[0015] The LORA main control unit is used for converting the data input by the main control module into an LORA wireless signal and sending it to the LORA power amplifier unit, and converting the LORA wireless signal processed by the LORA power amplifier unit into data and inputting it into the main control module;

[0016] The LORA power amplifier unit is used for processing the LORA wireless signal;

[0017] The antenna is used for sending the LORA wireless signal processed by the LORA power amplifier unit and receiving the LORA wireless signal and inputting it into the LORA power amplifier unit.

[0018] As a preferred embodiment of the present utility model, the carrier communication module includes a carrier main control unit, a carrier drive unit, and a coupling transformer;

[0019] One end of the carrier main control unit is connected to the main control module, one end of the carrier drive unit is connected to the other end of the carrier main control unit, and one end of the coupling transformer is connected to the other end of the carrier drive unit;

[0020] The carrier main control unit is used for converting the data input by the main control module into a carrier signal and sending it to the carrier drive unit, and converting the carrier signal processed by the carrier drive unit into data and inputting it into the main control module;

[0021] The carrier drive unit is used for processing the carrier signal;

[0022] The coupling transformer is connected to the power line and is used for coupling the carrier signal processed by the carrier drive unit to the power line and receiving the carrier signal in the power line and inputting it into the carrier drive unit.

[0023] As a preferred embodiment of the present utility model, a storage module is further included, and the storage module includes an EEPROM unit and a real-time clock unit;

[0024] The EEPROM unit is respectively connected to the real-time clock unit and the main control module;

[0025] The real-time clock unit is used to provide a real-time clock calendar;

[0026] The EEPROM unit is used to record the working records of the main control module and record the specific time through the real-time clock unit.

[0027] As a preferred embodiment of the present invention, an indicator light module is further included, and the indicator light module is connected to the main control module;

[0028] The indicator light module is used to display the working state of the energy controller.

[0029] As a preferred embodiment of the present invention, a power supply module is further included, and the power supply module is used to supply power to the energy controller.

[0030] As a preferred embodiment of the present invention, a security module is further included, and the security module is used to perform security protection on the data transmission between the energy controller and the devices connected thereto.

[0031] The present invention has the following beneficial effects:

[0032] 1. The present invention adopts the modular design concept, designs the energy controller terminal into multiple modular structures with independent functions, configures the corresponding module combinations according to the use requirements, and establishes the interconnection relationship between the hardware modules through different hardware module combination forms to implement the hardware design schemes of different intelligent terminals. Description of the Drawings

[0033] Figure 1 It is a structural diagram of the present invention. Detailed Embodiments

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0035] It should be understood that the step numbers used in the text are only for convenient description and do not limit the execution order of the steps.

[0036] It should be understood that the terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include the plural forms.

[0037] The terms "comprising" and "including" indicate the presence of the described features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or their combinations.

[0038] The term "and / or" refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0039] Example 1:

[0040] See Figure 1 , an energy controller for a microgrid, comprising a main control module, an RS485 communication module, a CAN communication module, a LORA communication module, and a carrier communication module;

[0041] The main control module is used to control and manage the energy devices of the microgrid, and the main control module is electrically connected to the RS485 communication module, the controller area network bus communication module, the local wireless communication module, and the remote wireless communication module respectively;

[0042] The RS485 communication module is used to communicate and connect with the energy devices using the RS485 communication protocol in the microgrid;

[0043] The CAN communication module is used to communicate with the energy devices using the CAN communication protocol in the microgrid;

[0044] The LORA communication module is used to wirelessly communicate with the energy devices in the microgrid;

[0045] The carrier communication module is used to perform power line carrier communication with the energy devices in the microgrid.

[0046] Specifically, in this embodiment, the main control module MCU selects a high-performance -M4 32-bit RISC processor, 512KB of Flash, 192KB of SRAM storage, supporting CAN interface, serial port, SPI interface, I2C interface, USB interface, etc., with a main frequency of 200M and an industrial-grade temperature of -40°C to 85°C.

[0047] The RS485 communication module selects an RS485 chip with isolation drive function. The NSi83085 features high reliability, high isolation withstand voltage, high common-mode immunity, and high integration. It can withstand a relatively complex EMC environment, such as ESD, EFT, surge, etc. The isolation withstand voltage can reach 5kVrms in line with the UL1577 standard, and the CMTI reaches 150kV / us. It integrates two functional designs of digital isolation and RS485 drive, simplifying the complexity of system design.

[0048] As a preferred embodiment of the present invention, the LORA communication module includes a LORA main control unit, a LORA power amplifier unit, and an antenna;

[0049] One end of the LORA main control unit is connected to the main control module, one end of the LORA power amplifier unit is connected to the other end of the LORA main control unit, and one end of the antenna is connected to the other end of the LORA power amplifier unit;

[0050] The LORA main control unit is used to convert the data input by the main control module into a LORA wireless signal and send it to the LORA power amplifier unit, and convert the LORA wireless signal processed by the LORA power amplifier unit into data and input it into the main control module;

[0051] The LORA power amplifier unit is used to process the LORA wireless signal;

[0052] The antenna is used to send the LORA wireless signal processed by the LORA power amplifier unit, receive the LORA wireless signal, and input it into the LORA power amplifier unit;

[0053] Specifically, in this embodiment, the LORA communication module uses the 433M frequency band and conducts data interaction with the main control module MCU through the serial port UART. It mainly consists of a USB protection circuit, a power management unit, a microprocessor, a Lora module, an antenna, an indicator light, etc.

[0054] As a preferred embodiment of the present invention, the carrier communication module includes a carrier main control unit, a carrier drive unit, and a coupling transformer;

[0055] One end of the carrier main control unit is connected to the main control module, one end of the carrier drive unit is connected to the other end of the carrier main control unit, and one end of the coupling transformer is connected to the other end of the carrier drive unit;

[0056] The carrier main control unit is used to convert the data input by the main control module into a carrier signal and send it to the carrier drive unit, and convert the carrier signal processed by the carrier drive unit into data and input it into the main control module;

[0057] The carrier drive unit is used to process the carrier signal;

[0058] The coupling transformer is connected to the power line and is used to couple the carrier signal processed by the carrier driving unit to the power line, and receive the carrier signal in the power line and input it into the carrier driving unit;

[0059] Specifically, in this embodiment, the carrier communication module selects a domestic broadband carrier chip, the physical layer specification conforms to the IEEE1901.1 PLC standard, the communication protocol stack conforms to the PLBUS PLC protocol, and advanced technologies such as OFDM modulation and time-frequency domain channel interleaving are adopted to ensure communication; at the same time, it supports the MESH network technology, supports point-to-point peer communication, and instant communication should support point-to-point two-way communication, broadcast, and multicast.

[0060] As a preferred implementation manner of this embodiment, it further includes a clock module, and the clock module includes an EEPROM unit and a real-time clock unit;

[0061] The EEPROM unit is respectively connected to the real-time clock unit and the main control unit;

[0062] The real-time clock unit is used to provide a real-time clock calendar;

[0063] The EEPROM unit is used to record the working records of the main control module and record the specific time through the real-time clock unit;

[0064] In this embodiment, the real-time clock unit selects the RX-8025T chip, uses the I2C bus to connect to the main control module, and the clock chip is designed with dual power supply. When the device works normally, it is powered by the device power supply. When the device loses power, it is powered by the battery, and the battery can provide normal operation of the clock chip for at least 5 years.

[0065] As a preferred implementation manner of this embodiment, it further includes an indicator light module, and the indicator light module is connected to the main control module;

[0066] The indicator light module is used to display the working state of the energy controller.

[0067] As a preferred implementation manner of this embodiment, it further includes a power supply module, and the power supply module is used to supply power to the energy controller. The power supply module is mainly composed of an AC-DC circuit, a DC-DC circuit, a backup power supply circuit and power management, etc., and also has a storage battery to provide battery power supply function.

[0068] As a preferred implementation manner of this embodiment, it further includes a security module, and the security module is used to perform security protection on the data transmission between the energy controller and the devices connected thereto;

[0069] In this embodiment, the security module uses a single security chip, which supports the key management for the operation and distribution specialties, and realizes the key generation, storage and use of the energy controller terminal. The security chip shall support the self-protection of the energy controller terminal and the security protection functions when the energy controller terminal interacts with the master station, the Internet of Things management platform and the operation and maintenance tools. The security module uses the operation and distribution integration security module of Zhixin.

[0070] This energy controller is adapted to various communication protocols to achieve the unified access of heterogeneous service terminals. The main supported communication technologies include: Ethernet, PLC, RS485, WiFi, ZigBee, LPWAN, CAN, optical port, etc., and it supports corresponding industry standards or custom protocols as well as other field communication protocols. The adaptation of various communication protocols can be achieved by means of dynamically loadable communication software or communication plugins.

[0071] In the embodiments of this application, "at least one" means one or more, and "a plurality" means two or more. "And / or" describes the association relationship of associated objects and indicates that three relationships can exist. For example, A and / or B can represent the cases of A existing alone, A and B existing simultaneously, and B existing alone. Among them, A and B can be singular or plural. The character " / " generally represents an "or" relationship between the front and rear associated objects. "At least one of the following" and its similar expressions refer to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b and c can represent: a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, c can be single or multiple.

[0072] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. An energy controller for a microgrid, characterized in that: Including main control module, RS485 communication module, CAN communication module, LORA communication module and carrier communication module; The main control module is used to control and manage the energy equipment of the microgrid, and the main control module is electrically connected to the RS485 communication module, the controller area network bus communication module, the local wireless communication module and the remote wireless communication module respectively; The RS485 communication module is used to communicate with energy equipment in the microgrid using the RS485 communication protocol; The CAN communication module is used to communicate with energy devices in the microgrid using the CAN communication protocol; The LORA communication module is used to communicate wirelessly with energy equipment in the microgrid; The carrier communication module is used to perform power line carrier communication with energy equipment in the microgrid.

2. An energy controller for a microgrid according to claim 1, characterized in that: The LORA communication module includes a LORA main control unit, a LORA power amplifier unit and an antenna; One end of the LORA main control unit is connected to the main control module, one end of the LORA power amplifier unit is connected to the other end of the LORA main control unit, and one end of the antenna is connected to the other end of the LORA power amplifier unit; The LORA main control unit is used to convert the data input by the main control module into a LORA wireless signal and send it to the LORA power amplifier unit, and convert the LORA wireless signal processed by the LORA power amplifier unit into data input to the main control module; The LORA power amplifier unit is used to process the LORA wireless signal; The antenna is used to send the LORA wireless signal processed by the LORA power amplifier unit and receive the LORA wireless signal and input it into the LORA power amplifier unit.

3. An energy controller for a microgrid according to claim 1, characterized in that: The carrier communication module includes a carrier main control unit, a carrier driving unit and a coupling transformer; One end of the carrier main control unit is connected to the main control module, one end of the carrier driving unit is connected to the other end of the carrier main control unit, and one end of the coupling transformer is connected to the other end of the carrier driving unit; The carrier main control unit is used to convert the data input by the main control module into a carrier signal and send it to the carrier driving unit, and convert the carrier signal processed by the carrier driving unit into data and input it into the main control module; The carrier driving unit is used to process the carrier signal; The coupling transformer is connected to the power line and is used to couple the carrier signal processed by the carrier driving unit to the power line and receive the carrier signal in the power line and input it into the carrier driving unit.

4. The energy controller for a microgrid according to claim 1, characterized in that: Also includes a storage module, the storage module includes an EEPROM unit and a real-time clock unit; The EEPROM unit is connected to the real-time clock unit and the main control module respectively; The real-time clock unit is used to provide a real-time clock calendar; The EEPROM unit is used to record the working records of the main control module and record the specific time through the real-time clock unit.

5. The energy controller for a microgrid according to claim 1, characterized in that: It also includes an indicator light module, which is connected to the main control module; The indicator light module is used to display the working status of the energy controller.

6. The energy controller for a microgrid according to claim 1, characterized in that: It also includes a power supply module, which is used to supply power to the energy controller.

7. The energy controller for a microgrid according to claim 1, characterized in that: It also includes a security module, which is used to provide security protection for data transmission between the energy controller and the devices connected to it.

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