论文部分内容阅读
一、制动电流和励磁电流的检测装置电阻制动工况下,在对制动电流和励磁电流进行恒流控制时,必须检测出励磁电流和制动电流的数值,并将其转换成与电流值成正比的直流电压,以作为控制系统的反馈信号。东风_4机车上采用ZDS-1000型霍尔电流传感器来检测励磁电流和制动电流的数值,总共安装有七个电流传感器,其中一个用于检测励磁电流,另外六个用于检测六台牵引电动机的制动电流。 ZDS-1000型霍尔电流传感器的主要技术性能如下: 测量范围 0～1000A直流单匝贯通输出电压 0～-10V
First, the braking current and excitation current detection device Resistance braking conditions, the braking current and excitation current for constant current control, the excitation current and braking current value must be detected and converted into Current value is proportional to the DC voltage, as the control system feedback signal. Dongfeng _4 locomotive on the use of ZDS-1000-type Hall current sensor to detect excitation current and braking current values, a total of seven current sensors installed, one for the detection of excitation current, the other six for the detection of six traction Braking current of the motor. ZDS-1000-type Hall current sensor main technical performance as follows: Measuring range 0 ~ 1000A DC single-pass through the output voltage 0 ~ -10V