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Intelligent micro-grid peak shaving controller of energy storage system

A technology of intelligent micro-grid and energy storage system, applied in the field of power distribution, can solve problems such as increasing project cost, difficulty in project implementation, and AGC command response delay

Pending Publication Date: 2019-12-20
NANJING INTELLIGENT APP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The EMS system is generally implemented in the background of the computer, which needs to be configured separately. The user’s energy storage station also needs to build a central control room to place the EMS background, which increases the project cost and the difficulty of project implementation. Moreover, the EMS system runs on a non-real-time operating system, which requires AGC commands. The response has a certain delay

Method used

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  • Intelligent micro-grid peak shaving controller of energy storage system
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  • Intelligent micro-grid peak shaving controller of energy storage system

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with accompanying drawing.

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] The intelligent micro-grid controller of the energy storage system in this embodiment includes a communication management module, a data acquisition module and a control strategy module. figure 1 It is a schematic diagram of the hardware structure of this embodiment, and the working principle of each module is as follows:

[0027] ① The communication management module is mainly composed of CPU2 and FPGA2.

[0028] FPGA2 expands the serial port and CAN interface, the serial port is used to integrate PCS, air conditioner and other equipment information, and the CAN interface is used to integrate BMS information. After CPU2 reads the information, it sends it to CPU1 through the Ethernet interface for policy control; it connects the 4G module th...

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Abstract

The invention provides an intelligent micro-grid peak shaving controller of an energy storage system. The micro-grid peak shaving controller comprises a communication management module, a data acquisition module and a control strategy module. According to the micro-grid controller, a single controller can operate in a micro-grid system, or multiple controllers can be connected in parallel for joint operation. When the single controller operates, the controller realizes peak shaving control on the energy storage system in combination with PCS / BMS data and a set fixed value; and during the jointoperation, the controllers are interconnected through a ring network switching module, wherein one controller is a main machine, other controllers are slave machines, the slave machines collect information of respective PCSs and BMSs and send the information to the main machine, and the main machine controls slave machine systems in combination with feedback states of the slave machines. According to the intelligent micro-grid controller, the PCS can be subjected to the peak shaving control directly according to a device state and the preset fixed value, and an AGC command can be received, sothat time delay is short and the efficiency is high.

Description

technical field [0001] The invention relates to the technical field of power distribution, in particular to an intelligent micro-grid peak regulation controller for an energy storage system. Background technique [0002] One of the main functions of the energy storage system is peak shaving. By charging at idle times and discharging at peak times, and coordinating with the dispatching center for control, it can play a role in peak shaving and valley filling and reactive power compensation for the power grid, thereby improving power quality and improving power supply. reliability. A complete energy storage system consists of batteries, BMS battery management system, PCS energy storage converter, protocol converter and EMS power management system. The EMS power management system implements the peak shaving strategy and responds to AGC dispatching commands at the same time. The EMS system is generally implemented in the background of the computer, which needs to be configured ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/32
CPCH02J3/32
Inventor 张杭陈国富张燕丁洁
Owner NANJING INTELLIGENT APP
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