突加负载对同步发电机整流系统直流侧电压的影响  

Influence of suddenly-applied load on DC-side voltage of synchronous generator rectifier system

作　　者：肖晗[1] 叶志浩[1] 纪锋[1] 颜青松 XIAO Han;YE Zhi-hao;JI Feng;YAN Qing-song(National Key Laboratory of Science and Technology on Vessel Integrated Power System,Naval Univ.of Engineering,Wuhan 430033,China)

机构地区：[1]海军工程大学舰船综合电力技术国防科技重点实验室,武汉430033

出　　处：《海军工程大学学报》2019年第1期25-30,共6页Journal of Naval University of Engineering

基　　金：国家自然科学基金资助项目(51377167;51607185);国家部委基金资助项目(613294)

摘　　要：为了研究发电机整流系统输出直流母线电压随突加负载的变化机理,基于交流发电机突加静态平衡负载的分析方法,给出了发电机整流系统直流侧突加负载时的瞬时电压表达式。首先,给出了发电机整流系统等效电路模型;然后,将直流侧负载等效到整流桥的交流侧,并利用整流桥本身的特性,推导了突加负载时直流侧瞬时电压表达式;最后,通过交流发电机突加静态平衡负载的理论计算结果检验了相应PSCAD仿真模型的可行性,并在此基础上,建立了发电机整流系统直流侧突加负载的PSCAD仿真模型,仿真结果验证了所提计算方法的正确性。A study of instantaneous voltage changes in the generator rectifier system during the sudden application of DC load is based on the analysis of a suddenly-applied balanced static load in the alternator.Firstly,an equivalent circuit model of the generator rectifier system is established.Then,the DC-side load is made to be equivalent to the AC-side load of the bridge rectifier,and the behavior of the rectifier itself is used to derive an expression for DC-side instantaneous voltage at the time of the sudden application of load.Finally,the results of theoretical calculation and PSCAD simulation are given respectively according to a suddenly-applied balanced static load in the alternator and suddenly-applied DC load in the generator rectifier system.The theoretical calculation verifies the feasibility of the PSCAD simulation model and proves to be accurate by the results of PSCAD simulation.

关 键 词：发电机整流系统 突加负载 瞬时电压 

分 类 号：TM301.3[电气工程—电机]