摘要
随着交直流混合配电网的推广与发展,潮流计算方法的适用性愈发重要。在此形势下,提出了一种能够适应交流三相不平衡的交直流混合配电网潮流计算方法。首先介绍了电压源型换流器的三相不平衡潮流模型,对换流器潮流方程进行了推导。然后对直流潮流计算模型进行详细的论述,并在此基础上提出了一种交直流配电网的交替迭代潮流计算方法。该方法采用模块化思想,实现了交直流解耦。最后,对修改的 IEEE 33 节点配电系统进行仿真计算,仿真结果验证了算法良好的收敛性和有效性。
With the popularization and development of AC-DC hybrid distribution networks,the applicability of power flow calculation methods becomes more and more important.Under this situation,a method for power flow calculation of AC-DC hybrid distribution network that can adapt to AC three-phase imbalance is proposed.First,the three-phase unbalanced power flow model of the voltage source converter is introduced,and the converter power flow equation is derived.Then the DC power flow calculation model is discussed in detail,and an alternating iterative power flow calculation method for AC/DC power distribution network is proposed based on this.This method adopts the modular idea to realize AC and DC decoupling.Finally,the modified IEEE 33-node power distribution system is simulated.The simulation results verify the good convergence and effectiveness of the algorithm.
作者
汪涌泉
毕征程
杨军
李文嫄
Wang Yong-quan;Bi Zheng-cheng;Yang Jun;Li Wen-yuan(College of Electrical Engineering and Automation,Shandong University of Science and Technology,Shandong Qingdao 266590)
出处
《电子质量》
2020年第2期1-5,共5页
Electronics Quality
关键词
交直流混合配电网
三相不平衡
交替迭代
潮流计算
AC/DC hybrid distribution network
three-phase unbalance
alternating iteration
power flow calculation
