考虑损耗的内置式永磁同步电机标幺化系统硬件在环实时仿真与测试  

The Real-Time Simulation and Test of IPMSM Per-Unit HIL System Considering Loss

作　　者：高瑾[1] 殷桂来 霍锋伟 黄苏融[1] 

机构地区：[1]上海大学自动化系,上海200072

出　　处：《电工技术学报》2016年第19期147-154,共8页Transactions of China Electrotechnical Society

基　　金：国家高技术研究发展计划项目(863计划)资助(2012AA110801)

摘　　要：传统内置式永磁同步电机实时仿真建模通常只针对某一特定电机，且不考虑电机实际运行中存在的损耗，这存在两个缺点：一是采用实际值建模通用性不足，改变电机参数容易造成定点数溢出或芯片资源的浪费；二是如果不考虑实际电机尤其是大功率电机运行中的损耗，会引起一定的仿真误差。为解决这两个问题，建模采用标幺化，以适用于不同功率等级的电机；同时，建模时加入了等效损耗模型。为对比实时仿真模型相对于真实电机的准确度，搭建了2个实验平台，即硬件在环半实物平台（HILBench）和实物双电机对拖平台（M／G Bench）。以M／G Bench为基准，测试转矩从轻载到额定负载，得到电机在不同转速下的电流值，将相同工况下的HILBench电流值与之对比。结果表明，所提方法提高了HIE实时仿真的准确度，轻载误差为2％～6％，重载误差为1％～2％。Traditional interior permanent magnet synchronous motor real-time modeling usually aims at a particular motor and regard less of losses existing in operation. The method has two short comings. One is poor universality in actual value modeling. Data will overflow or chip resource will be wasted when motor parameters are changed. The other is that certain simulation error will be caused if losses are neglected in motors running especially in high power cases. To solve the above problems, a per-unit model is built, whieh ean adapt to motors in various power levels. Moreover, the equivalent loss model is added. In order to test the per-unit model precision, two experimental test platforms are presented. One is the hardware in the loop （HIL） real-time simulation platform （HIL Bench） and the other is the physical dragging motors bench （M/G Bench）. By taking the M/G Bench as a reference, the current data is measured in different speeds by varying torques range from no- load to the rated load. The comparison experiments of HIL Beneh and M/G Bench are then ealTied out within same operating conditions. The results show that the relative error of the peak current is about 2% to 6% when the motor is in the constant speed operation with light load, and will be decreased to 1% to 2% with heavy load.

关 键 词：内置式永磁同步电机 损耗 硬件在环 标幺化建模 

分 类 号：TM351[电气工程—电机]