摘要
为适应现代直流调速实验教学的需要,研究了四象限三相全桥晶闸管相控整流系统的数字化控制。主控制芯片采用数字信号处理器DSP,在单个芯片内完成多路信号采样、转速电流双闭环跟踪控制、多路脉冲触发等功能,系统控制策略的升级更加灵活。对数字化的控制结构进行了详细介绍,包括给定值、反馈值的数字选取,调节器参数的数字设定。软件结构设计模块化,可根据实验要求进行组合。设计了伪故障发生功能,有利于培养学生的故障分析能力。该实验系统的开放性和灵活性较强。
The digital control of four-quadrant three-phase thyristor rectifying system is researched in order to adapt to the needs of modern DC speed-regulating experiment teaching. The control chip is a digital signal processor （DSP）, which can finish multi-signals sampling, speed-current double close-loop controlling and multi pulses triggering, so it is more flexible to upgrade the control strategy of system. The digital control structure is introduced in detail, including the digital choosing of given value, feedback value and the digital setting of regulator parameters. The software structure used modular design for combination according to the requirements. What＇s more, the function of pseudo failure is designed for the purpose of enhancing the students＇ ability of fault analysis. The openness and flexibility of system experiment are stronger.
出处
《实验技术与管理》
CAS
北大核心
2013年第11期102-106,共5页
Experimental Technology and Management
基金
合肥工业大学实验室自制仪器设备项目(Z200903)
关键词
实验教学
直流调速
伪故障
数字化控制
experimental teaching
DC speed regulating
pseudo failure
digital control
