船舶电力系统电能质量相关问题的仿真研究

Research of Power Quality in Ship Electric System

时域仿真法是研究电力系统电能质量的一种重要方法,本文基于Ansoft/Simplorer软件平台对电气负载对船舶电力系统电能质量的影响进行分析。研究的主要对象是感性负载、容性负载和整流型负载,根据外特性在仿真环境中建立感性负载和容性负载的等效阻抗模型,利用电力电子器件建立变压整流器的模型。通过仿真对电能质量中的三相不平衡问题、功率因数问题、谐波问题和直流脉动问题进行研究,以分析电气负载对船舶电力系统电能质量的影响。

Time domain simulation is a major method in power quality research; the effect of electric loads to ship electric system in power quality is analyzed, based on Ansoft/Simplorer program. According to the external characteristic of lagging loads, capacitive loads and rectifier loads, in this paper equivalent impedance models of lagging loads and capacitive loads are made, rectifier loads is built with power electric element models in the simulation environment. Three-phase disequilibrium, power factor, harmonic wave and DC pulsation phenomenon is simulated to analyze the effect in power quality of electric loads to ship electric power system.