中文摘要：

为研究多谐波源系统的电能质量问题，提出一种快速的非迭代式谐波潮流分析算法。该算法将基频下的谐波源视为恒功率负荷，根据基频结果计算谐波源的运行参数及模型。联立求解系统的谐波导纳方程和谐波源模型方程，无需迭代即可得到系统中所有节点的各次谐波电压。该算法可考虑谐波源的各次谐波电压和谐波电流之间的相互耦合，也可考虑系统中多个谐波源之间的相互抵消作用。算法以AC／DC整流装置类谐波源为例阐述，可拓展应用于含其他非线性电力电子装置类谐波源的系统中。以存在多个分散式谐波源的实际系统为例，Matlab编程实现算法并与PSCAD时域仿真对比，结果表明：算法准确度高、计算速度快。

英文摘要：

A fast non-iterative harmonic power flow method was proposed in this paper to analyze the power quality problem for power systems with multiple harmonic sources. The harmonic sources were represented as constant PQ loads under fundamental frequency and the operating parameters necessary for harmonic modeling were acquired based on the fundamental frequency power flow results. By solving the system harmonic matrix equations together with the harmonic source model equations, the whole system harmonic power flow results can be calculated without iteration. By using this method, not only the couplings between harmonic voltages and currents but also the mutual effect among distributed harmonic sources can be taken into account. AC/DC converters were used as example harmonic sources to verify the proposed method. However, the method can also be applied to analyze other nonlinear power electronic devices. The comparison results between the proposed method and the PSCAD simulation reveal that the non-iterative algorithm is accurate and fast.