考虑分布式电源限流作用的主动配电网连续潮流计算  

Continuous power flow calculation for active distribution network with consideration of current limitation of distributed generation

作　　者：杨杉[1] 同向前[1] 

机构地区：[1]西安理工大学自动化与信息工程学院,陕西西安710048

出　　处：《电力自动化设备》2017年第10期57-62,共6页Electric Power Automation Equipment

基　　金：国家自然科学基金资助项目(51677151;51507139);陕西省重点学科建设专项基金资助项目(5X1301)~~

摘　　要：当配电网含有换流器型分布式电源时,连续潮流需要考虑换流器的限流特性。根据换流器型分布电源的控制策略与限流特性,得到换流器型分布式电源的连续潮流计算等效模型。基于该模型,提出一种含换流器型分布式电源配电网的连续潮流计算方法。该方法在连续潮流计算过程中增加了换流器型分布式电源限流状态的判断环节;当换流器型分布式电源进入限流状态后,需要修改该分布式电源的节点类型以及预估和校正环节雅可比矩阵中与限流分布式电源节点相关的元素。某33节点配电网算例验证了所提方法的正确性。The current limiting characteristics of inverter should be considered for continuous power flow of distribution network with inverter based distributed generation. The equivalent model of inverter based distributed generation for continuous power flow calculation is obtained according to the control strategy and current limiting characteristics of the distributed generation. Based on the model,a method of continuous power flow calculation for distribution network with inverter based distributed generations is proposed,which adds a judgement part of the current limiting state in the process of continuous power flow calculation. When the distributed generation steps into the current limiting state,the bus type of the distributed generation and the elements related to the current limited bus in the Jacobi matrix of prediction and correction process should be modified. Simulations of a 33-bus distribution network verify the correctness of the proposed method.

关 键 词：换流器型分布式电源 主动配电网 连续潮流 节点类型 电压稳定性 模型 

分 类 号：TM711[电气工程—电力系统及自动化]