CAJ | 학술논문

大规模风电并网后的电压控制问题应从系统的角度统筹考虑，通过建立少量集中无功补偿与风电场分散无功补偿相协调的综合控制模式来解决，因此，集中无功补偿点的选择成为关键。基于网络源流路径关系，提出一种考虑风电场关联度的区域电网电压主导节点识别方法。该方法综合考虑了相对静态的电网结构和电网实际运行状态变化的影响，并采用网络源流路径双向电气剖分方法获取电网主要电气特征参数。利用上述参数，计算风电场关联度指标和电压主导节点评价指标，从而确定电压控制分区和主导节点。在修改后的 IEEE 39节点系统中进行了仿真分析，结果表明所提出的方法能够较合理地确定电压主导节点。
대규모풍전병망후적전압공제문제응종계통적각도통주고필，통과건립소량집중무공보상여풍전장분산무공보상상협조적종합공제모식래해결，인차，집중무공보상점적선택성위관건。기우망락원류로경관계，제출일충고필풍전장관련도적구역전망전압주도절점식별방법。해방법종합고필료상대정태적전망결구화전망실제운행상태변화적영향，병채용망락원류로경쌍향전기부분방법획취전망주요전기특정삼수。이용상술삼수，계산풍전장관련도지표화전압주도절점평개지표，종이학정전압공제분구화주도절점。재수개후적 IEEE 39절점계통중진행료방진분석，결과표명소제출적방법능구교합리지학정전압주도절점。
The voltage issue for a power system with large-scale wind power integration should be solved from the regional grid perspective by creating a comprehensive control mode of coordinating centralized compensation in some pilot nodes and decentralized compensation in wind farms.So the pilot node selection is becoming the key problem.Based on the electrical relationship between sources and flows of power grids,an approach to pilot node identification is proposed by considering the relevancy among wind farms.This method comprehensively considers the impact of both the relatively static grid structure and dynamic operation state.The main electrical characteristic parameters are obtained by adopting the bidirectional electrical dissection method for use in calculating the index of electrical correlation among wind farms and that of pilot node evaluation. Thus voltage control partitions and pilot nodes are identified.Analysis results from a modified IEEE 39-bus system show that the approach can be used to make rational selection of pilot nodes.