Analysis of the Impacts of Multi Wind Region Integration on System Small Signal Stability

doi:10.11930/j.issn.1004-9649.2014.6.106.4

Abstract

Abstract: With vigorous development of wind resources, a lot of wind farms have been accessed to power grid, and the access voltage of wind farms have developed from the low voltage level of distribution networks to high voltage level of transmission networks. Because of the growing impacts of wind power generation on the system stability, the small disturbance stability of wind power system cannot be ignored. Since wind farms are interconnected through the major power grid, the impacts of wind power on system stability not only comes from a single wind farm, but also from several wind farms in a wind region or multiple wind farms in several wind regions of the same power grid. An analysis of the output changes of several wind farms in a single wind region and multiple wind farms in several wind regions shows that the impacts of wind farms on system small disturbance stability are mainly represented by oscillation mode and oscillation characteristics of the system. The conclusion is verified through simulation of a typical grid in Xinjiang region with the PSASP program. This study results can provide an important reference for wind power integration, wind farm operation and power system planning.

Key words: wind power integration, small signal stability, low frequency oscillation, eigenvalue, damping ratio, oscillation characteristic

CLC Number:

TM614

ZHOU Zhuan, YAO Xiu-ping, CHANG Xi-qiang, REN Hua. Analysis of the Impacts of Multi Wind Region Integration on System Small Signal Stability[J]. Electric Power, 2014, 47(6): 106-110.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2014.6.106.4

https://www.electricpower.com.cn/EN/Y2014/V47/I6/106

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