Harmonic and transient state assessment in the time-domain

Ismael Molina-Moreno, A. Medina, R. Cisneros-Magaña, O. Anaya‐Lara
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引用次数: 1

Abstract

Power quality simulation is required to provide an evaluation of the adverse phenomena such as transients, harmonics, and voltage sags in a power system, among others. This paper details a methodology to assess adverse power quality effects. In this methodology, the power system is modeled in the continuous-time by an ordinary differential equations set. The equations set are solved through a numerical integration procedure. The methodology is applied to the modified New Zealand test power system including linear and nonlinear loads. The results are validated through a direct comparison of the state response against the actual response obtained from the time-domain power system simulation performed using the SimPowerSystems toolbox of Simulink®. The obtained results indicate that the methodology accurately estimates power quality harmonic and transient state, respectively.
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时域谐波与暂态评估
电能质量仿真需要提供诸如电力系统中的瞬态、谐波和电压跌落等不良现象的评估。本文详细介绍了一种评估电能质量不利影响的方法。在该方法中,用常微分方程组在连续时间内对电力系统进行建模。通过数值积分法对方程组进行求解。将该方法应用于包括线性和非线性负荷的改进的新西兰试验电力系统。通过将状态响应与使用Simulink®的SimPowerSystems工具箱进行的时域电力系统仿真获得的实际响应进行直接比较,验证了结果。结果表明,该方法能准确地估计出电能质量的谐波和暂态。
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