Microgrid energy storage converter empirical test platform

A test platform and converter technology, applied in the field of microgrid, can solve the problems of low degree of automation and insufficient performance testing items, and achieve the effect of realizing automation and realizing energy circulation

Pending Publication Date: 2020-09-25
ELECTRIC POWER RES INST STATE GRID SHANXI ELECTRIC POWER +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: how to solve the problems of low automation and insufficient performance testing items of the current energy storage converter test platform

Method used

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  • Microgrid energy storage converter empirical test platform
  • Microgrid energy storage converter empirical test platform
  • Microgrid energy storage converter empirical test platform

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Embodiment Construction

[0014] In this embodiment, the energy storage converter to be tested adopts the DC / AC220 / 380V energy storage converter produced by Nanjing Guochen DC Power Distribution Technology Co., Ltd., and the electronic analog load is a general existing electronic analog load. The key to realize RLC is worth setting. In this embodiment, the Chroma63800 three-phase AC analog load is used as the electronic analog load, which can simulate various power loads in any combination. The grid simulator uses the programmable AC power supply (chroma Model 61800 series) to simulate various conditions of the power grid, the power grid simulation device can meet the requirements of electrical performance testing and make the grid voltage controllable; the grid simulator is connected in series with the simulated grid impedance network, the purpose is to test The operation effect under non-ideal working conditions (over-undervoltage, over-underfrequency), the grid simulator can simulate non-ideal voltag...

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Abstract

The invention relates to the field of micro-grids. A microgrid energy storage converter empirical test platform comprises a battery simulation system, a to-be-tested energy storage converter, an electronic simulation load, a power grid, a simulation power grid impedance network, a power grid simulator, a step-down transformer and a data management platform. Two-way communication is achieved through wireless sensor terminal device, the characteristic that a communication module is low in power consumption and time delay is utilized, the running state of the energy storage inverter can be transmitted to a data management platform in real time, and real-time visualization of a monitoring interface is achieved. The battery simulation system and an actual power grid are connected through a step-down transformer to form an annular test platform, so that energy circulation is realized. The anti-islanding detection of the energy storage inverter adopts an electronic simulation load, switches K1, K2 and K3 are controlled through a computer during operation, the numerical value of the electronic simulation load RLC is obtained, and the automation of the anti-islanding detection can be realized.

Description

technical field [0001] The invention relates to the field of microgrids. Background technique [0002] Renewable energy such as solar power and wind power have unstable and intermittent power supply problems, which affect the stability of the power grid. The energy storage system (ESS, Energy Storage System) is used to buffer the dynamic differences in power generation, transmission and distribution, and power consumption. problems, reduce the impact caused by renewable energy grid integration, and increase the stability of grid operation. [0003] As the most common and core micro-grid device, the research on micro-grid on-grid and off-grid operation and its switching control plays a vital role in the development of micro-grid, so the advanced control of energy storage grid-connected control technology is getting more and more more attention. In addition, in order to reduce the time cost of research and improve test efficiency, it is necessary to study a test and R&D plat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 王金浩任远李胜文常潇杨超颖刘翼肇毛瑞李慧蓬高乐王旭孟润泉王锬樊瑞张世锋赵军张敏肖莹
Owner ELECTRIC POWER RES INST STATE GRID SHANXI ELECTRIC POWER
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