摘要
为解决交直流混合电网潮流计算问题,提出了一种针对交直流混合电网潮流的交替迭代算法。首先,分析了VSC的稳态工作机理及基本控制策略,推导了交直流网络稳态潮流,在不同控制策略下对直流电网潮流计算方法进行了研究。然后,根据VSC所采用的不同控制策略,在每个计算周期内对直流电网潮流和交流电网潮流进行交替迭代计算。最后,基于Matlab软件进行交直流混合系统潮流计算,证明了所提方法的有效性。
In order to solve the problem of power flow calculation in AC/DC hybrid power system, an alternating iteration algorithm for power flow in AC/DC hybrid power system is proposed. The steady-state operation mechanism and basic control strategy of VSC are analyzed. The steady-state power flow of AC/DC network is deduced. The power flow calculation method of DC network is studied under different control strategies. According to the different control strategies adopted by VSC, the alternating iteration calculation of the DC power flow and AC power flow is carried out in each calculation cycle. The power flow calculation of AC/DC hybrid system based on MATLAB software proves that the method has the advantages of high accuracy and fast convergence.
引文
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