Parameter Deviation Effect Study of the Power Generation Unit on a Doubly-Fed Induction Machine-based Shipboard Propulsion System  

作　　者：Kai Ni Yihua Hu Chun Gan 

机构地区：[1]State Key Laboratory of Advanced Electromagnetic Engineering and Technology,the School of Electrical and Electronic Engineering,Huazhong University of Science and Technology,Wuhan,Hubei 430074,China [2]Department of Electronics Engineering,Heslington,University of York,York,YO105DD,U.K.

出　　处：《CES Transactions on Electrical Machines and Systems》2020年第4期339-348,共10页中国电工技术学会电机与系统学报（英文）

基　　金：the National Natural Science Foundation of China under Grant 52007071 and 51907073;the China Postdoctoral Science Foundation under Grant 3004131154 and 2020M672355;the Applied Basic Frontier Program of Wuhan under Grant 2020010601012207。

摘　　要：To lower the difficulty of fault protection,a doubly-fed induction machine based shipboard propulsion system(DFIM-SPS)that is partially power decoupled is presented.In such an intrinsically safe SPS architecture,a synchronous generator(SG)is employed for power generation,and the accuracy of the parameters of power generation unit(PGU)plays an important role in SPS stable operation.In this paper,the PGU parameter deviations are studied to evaluate the effects on system performance.The models of salient-pole SG,type DC1A excitation system(EXS)and DFIM are illustrated first.Besides,the corresponding control scheme is explained.For the 16 important parameters of PGU,up to 40%of parameter deviations are applied to implement parameter sensitivity analysis.Then,simulation studies are carried out to evaluate the parameter deviation effects on system performance in detail.By defining three parameter deviation effect indicators(PDEIs),the effects on the PGU output variables,which are the terminal voltage and output active power,are studied.Moreover,the increasing rates of PDEIs with different degrees of parameter deviations for the key parameters are analyzed.Furthermore,the overall system performance is investigated for the two most influential PGU parameters.This paper provides some vital clues on SG and EXS parameter identification for DFIM-SPS.

关 键 词：shipboard propulsion system partially power decoupled doubly-fed induction machine synchronous generator parameter deviation 

分 类 号：TM346[电气工程—电机] U674.7[交通运输工程—船舶及航道工程]