摘要
为了降低矿用电机车电驱组件的成本,使用四开关逆变器代替六开关逆变器以驱动永磁电机。由于B4逆变器省去2个开关器件,针对其存在直流侧电容中点电压波动的固有弊病提出电压补偿策略,同时针对矿用设备要求的无传感器设计,采用基于反电动势检测的控制算法,并在其基础上提出动态系数给定策略以提高估算速度和精度以满足全速域运行。实验结果表明,电压补偿算法可以有效消除电机中的电流畸变;而动态系数控制策略可以实现电机全速域的位置角快速估算并有效抑制信号噪声。所介绍的基于B4逆变器的永磁电机无传感器控制系统满足矿用电机车的控制需要。
In order to reduce the cost of mining electric locomotive electric drive components, a four-switch inverter was used for replaceing six-switch inverter to drive the permanent magnet motor. Since the B4 inverter switching devices eliminating two proposed compensation policy for the DC voltage side capacitor midpoint voltage fluctuations inherent shortcomings of its existence. While no sensor design for mining equipment requirements, the control algorithm based on counter electromotive force detection, and proposed a dynamic coefficient of a given policy to improve the speed and accuracy of estimation domains running at full speed to meet on its basis. Experimental results show that the voltage compensation algorithm can effectively eliminate the motor current distortion; and dynamic coefficient control strategy can achieve full speed position angle of the motor domain and effectively inhibit the rapid estimation of signal noise. Based B4 inverter sensorless permanent magnet motor control system to meet the control needs of the proposed mining electric locomotives.
出处
《微特电机》
北大核心
2017年第2期46-50,共5页
Small & Special Electrical Machines
基金
河南省科技厅科技攻关计划项目(142102210227)
关键词
四开关逆变器
矿用电机车
无传感器控制
动态系数策略
four-switch inverter
mine electric locomotive
sensorless control
dynamic coefficient of strategy
