Analysis and improvement of steady-state voltage stability for isolated medium-voltage microgrid with wind power

作者：Zhao, Zhuoli; Yang, Ping; Cai, Zexiang; Zhou, Shaoxiong; Green, Timothy C.; Lei, Jinyong

来源：Electric Power Automation Equipment, 2015, 35(11): 13-19.

DOI：10.16081/j.issn.1006-6047.2015.11.003

• Doubly fed induction generator (DFIG)
• Micro grid
• Micro-grid systems
• Operating modes
• Pitch-angle control
• Power voltage characteristics
• Steady state voltage stabilities
• Storage stability

The power-voltage characteristics of DFIG (Doubly-Fed Induction Generator) with wind turbine in the isolated microgrid are analyzed and a strategy based on the local energy-storage stability control and fast pitch-angle control is proposed according to the constraints of different operating modes of microgrid with DFIG to enhance its steady-state voltage stability control. A model of microgrid system with stability control strategy is built based on PSCAD /EMTDC and the results of research indicate that, the proposed strategy enhances effectively the steady-state voltage stability of microgrid under the wind disturbances in different operating modes to guarantee its safe and stable operation.

• 出版日期2015-11-10
• 单位Imperial College london; 华南理工大学; 南方电网科学研究院有限责任公司