三相交流同步发电机瞬态参数的仿真计算  

Simulation calculation of transient parameters of three phase AC synchronous generator

作　　者：迟睿新 CHI Ruixin(Shanghai Marathon-Gexin Electric Co.,Ltd.,Shanghai Enterprise Technology Center,Shanghai 200444,China)

机构地区：[1]上海马拉松·革新电气有限公司,上海市企业技术中心,上海200444

出　　处：《电气应用》2022年第11期1-5,I0004,共6页Electrotechnical Application

摘　　要：三相交流同步发电机瞬态参数目前可通过试验测试、电磁计算获得。试验方法主要有突然短路法、电压恢复法,测试比较准确,但需要相当庞大的试验设备投入,测试中对电网容量有要求,并且对被测试的系统有机械和电气的冲击损坏。电磁计算投入少、计算快,瞬态参数在发电机设计阶段通过电磁计算程序获得,但计算不够准确,与试验测试值存在一定差值。为减小瞬态参数计算值和测量值之间的差值,采用ANSYS Maxwell和MATLAB编程模拟,对励磁机、主机以及系统的运动模型联合求解,仿真其瞬态过程,对仿真数据进行拟合识别处理得出瞬态参数和超瞬态参数。The transient parameters of three phose AC synchronous generators can be obtained by experimental tests and electromagnetic calculations at present.The main experimental tests are the sudden short circuit method and the voltage recovery method.The test is more accurate,but requires considerable investment in test equipment,requires grid capacity in the test,and causes mechanical and electrical shock damage to the test system.The electromagnetic calculation is less input and faster,and the transient parameters are obtained through the electromagnetic calculation program during the generator design,but the calculation is not accurate enough and there is a certain difference with the experimental test value.In order to reduce the difference between the calculated and measured values of transient parameters,ANSYS Maxwell and MATLAB software are used to simulate the transient process by modeling the sub exciter,main exciter and main engine separately and finally solving them jointly,and fitting and identifying the simulation data to derive the transient and sub transient parameters.

关 键 词：联合仿真 三相交流同步发电机 瞬态参数 超瞬态参数 

分 类 号：TM341[电气工程—电机]