|Table of Contents|

Distributed coordination reactive power sharing strategy for islanded microgrid

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2020年02期
Page:
246-251
Research Field:
Publishing date:

Info

Title:
Distributed coordination reactive power sharing strategy for islanded microgrid
Author(s):
Xiong Hui12Ren Jiangbo3Gu Qiaogen12Chang Fengran3
1.NARI-Relays Electric Co Ltd,Nanjing 211102,China; 2.State Grid Electric Power Research Institute,NARI Group Cooperation,Nanjing 211106,China 3.State Grid Hebei Electric Power Supply Company,Shijiazhuang 050021,China
Keywords:
islanded microgrid distributed coordination reactive power sharing droop control secondary control
PACS:
TM732
DOI:
10.14177/j.cnki.32-1397n.2020.44.02.017
Abstract:
In order to solve the problem that the distributed generator using the inverter droop control in the microgrid is difficult to realize the reasonable distribution of reactive power,and there are hidden problems in the safe operation of reactive power circulation,a distributed reactive power sharing strategy for islanded microgrid based on the finite time consistent control is proposed here. The reactive power output is equalized under the framework of no centralized controller,which can reduce the reactive circulating current of the system and improve the voltage quality. Compared with the traditional consistency strategy,the proposed reactive power sharing strategy has faster convergence speed,can optimize the convergence time and speed,and adapt to various disturbances in microgrid. In order to verify the reactive power sharing effect of the control strategy,a simulation model of the islanded microgrid is established in PSCAD/EMTDC. The effectiveness and adaptability of the distributed reactive power sharing strategy are verified in many scenarios.

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Last Update: 2020-04-20