电力系统保护与控制2017，Vol.45Issue(2)：85-93,9.DOI:10.7667/PSPC160137
面向中高压智能配电网的电力电子变压器建模方法与控制策略研究
Research on medium and high-voltage smart distribution gird oriented power electronic transformer modeling and control strategies
刘海军 1李刚 2王志凯 1赵国亮 1田鑫 1刘闯3
作者信息
- 1. 国网智能电网研究院,北京102209
- 2. 国家电网公司科技部,北京100031
- 3. 东北电力大学,吉林吉林132000
- 折叠
摘要
Abstract
This paper analyzes the research status of traditional power electronic transformer modeling and control strategies,as well as limitations for medium and high voltage distribution network of power electronic transformer modeling and control strategy.According to the analysis above,based on the working characteristics of the resonant converter,a unified reduced order modeling and single-level control strategy is proposed for the high-voltage power electronics transformer.Such strategy owns a simpler topology and more effective control ability.Compared with the traditional power electronic transformer modeling approach and control strategy,the proposed control strategy utilizes the work characteristics of high-frequency isolated converters,high-frequency transformer-isolated converter in conjunction with front-end cascaded as a whole,it simplifies the control system,so that it will not be more complicated with the number of modules increase.Finally,a 10 kV power electronic transformer topology and its control feasibility of the strategy are verified in PSCAD simulation environment.关键词
智能电网/配电网/电力电子变压器/控制策略/统一降阶模型Key words
smart grid/distribution network/power electronics transformer/control strategies/unified reduced order model引用本文复制引用
刘海军,李刚,王志凯,赵国亮,田鑫,刘闯..面向中高压智能配电网的电力电子变压器建模方法与控制策略研究[J].电力系统保护与控制,2017,45(2):85-93,9.
