汽车机械惯量电模拟技术  

Electrical simulation of vehicle mechanical inertia

作　　者：莫志勇[1,2] 张为公[1] 吉同舟[2] 

机构地区：[1]东南大学仪器科学与工程学院,南京210096 [2]南京师范大学电气与自动化工程学院,南京210042

出　　处：《中国惯性技术学报》2009年第1期123-126,共4页Journal of Chinese Inertial Technology

摘　　要：为了在汽车测试中模拟汽车惯量,研究了机械惯量电模拟的方法。分析总结了传统飞轮组模拟方法的局限性。分析和给出在不同测试目的和测试结构下,汽车等效惯量的不同计算方法。分析了测试系统的运动方程,从中导出了在电模拟时需要补偿的转矩,分别讨论了加减速过程和惯量不匹配这两种情况下补偿转矩的性质。研究了异步电动机的4象限运行机械特性,针对具体实现时所使用的变频拖动系统的特点,结合工程条件,求解异步电动机变频变压时的机械特性方程,给出了频率控制方程。仿真结果表明,控制方法是可行的。The method of vehicle inertia simulation was studied in order to establish electrical simulation in vehicle testing system. Two different formulas of equivalent inertia was provided for the tests of different purpose and different testing structure. Expression of compensation torque was drawn based on the study of motion equation of electrical simulation system. Then the quality of the torque in situations of accelerating process and inertia mismatch was analyzed. According to the theory of mechanical characteristic in four quadrants of asynchronous electromotor, the output frequency of inverter was figured out from the formula of mechanical characteristic. Simulation result shows that the control method is feasible.

关 键 词：汽车惯量 惯量模拟 转矩补偿 机械特性 变频调速 

分 类 号：TP276[自动化与计算机技术—检测技术与自动化装置]