小型电力推进船舶电力系统谐波抑制的仿真研究

建立了小型电力推进系统谐波分析的数学模型,进行了谐波抑制装置的设计;利用MATLAB,采用分层结构和模块化设计实现了该系统和谐波抑制装置的数字仿真。仿真结果证明了该仿真模型和设计方法的正确性。

The Harmonic Suppression Simulation Research of Small Ship Power System with Electric Propulsion

With the rapid development of ship electric propulsion system which is based on the advance technology of variable velocity and variable frequency, the commercial ships with electric propulsion are increasing, and the various form of electric propulsion is designed, and have been concerned by more and more people. However, due to the small capacity of small ship power and the relatively heavy power of electric driver, serious harmonic pollution of power system is produced, which would influence the choice of ship power capacity and the ship safety. The harmonic suppression of variable frequency driver is becoming an improtant research way. In this paper, a harmonic analysis mathematical model of the fresh-water ship electric propulsion system is established and a set of harmonic suppression installation is designed. The harmonic analysis mathematical model and harmonic suppression installation, as well as harmonic distribution are clearly displayed through simulation system in MATLAB. The validity of the mathematical model and the efficiency of the harmonic suppression installation are testified through the simulation results.