基于综合灵敏度的两阶段电压控制分区方法  

Two-stage Voltage Control Partition Method Based on Comprehensive Sensitivity

作　　者：李英量 王康 高兆迪 蔡鹤鸣 李飞 LI Ying-liang;WANG Kang;GAO Zhao-di;CAI He-ming;LI Fei(School of Electronic Engineering, Xi’an Shiyou University, Xi’an 710065, China)

机构地区：[1]西安石油大学电子工程学院,西安710065

出　　处：《科学技术与工程》2022年第6期2284-2290,共7页Science Technology and Engineering

基　　金：陕西省自然科学基础研究计划(2020JM-542);国家自然科学基金企业创新发展联合基金重点项目(U20B2029);陕西省科技计划基础研究项目(2021JM-404);陕西省重点研发计划(2021KW-33)。

摘　　要：针对传统电压分方法中发电机节点转换会影响负荷区域灵敏度的问题,提出一种基于综合灵敏度的两阶段电压控制分区方法。第一阶段采用综合灵敏度实现负荷节点的聚合分区,并在该阶段完成主导节点的识别。第二阶段首先考虑电压稳定性归并PV节点,然后采用灵敏度法逐次归并剩余发电机节点。综合灵敏度模型能全面反映负荷区域功率与电压的耦合性,主导节点的识别可以优化控制节点数。新方法以区域电压稳定性为主导、灵敏度法为递补,减轻了节点类型转化对负荷灵敏度的影响,避免了人为归并发电机的弊端。仿真结果验证了所提方法的有效性。In the traditional voltage division method,the generator nodes conversion will affect the sensitivity of the load area,so a two-stage voltage control division method based on comprehensive sensitivity was proposed.The first stage adopted comprehensive sensitivity to realize the aggregation and partition of load nodes,and completes the identification of dominant nodes in this stage.The second stage first considered the voltage stability and merges the generator nodes,and then used the sensitivity method to merge the remaining generator nodes one by one.The comprehensive sensitivity model can fully reflect the coupling of power and voltage in the load area,and the identification of dominant nodes can optimize the number of control nodes.The new method takes the regional voltage stability as the leading factor and the sensitivity method as the incremental compensation,which reduces the influence of node type conversion on load sensitivity and avoids the drawbacks of artificial merging of generators.The simulation results verify the effectiveness of the proposed method.

关 键 词：电压控制分区 综合灵敏度 节点聚合 电压稳定性 断线分析法 

分 类 号：TM732[电气工程—电力系统及自动化]