摘要
针对绕线转子异步电动机,研究并设计一种转速、电流双闭环控制的串级调速系统。分析双闭环控制串级调速系统的组成与工作原理,在此基础上,研究调速系统各个环节的传递函数,进而得出双闭环串级调速系统的动态结构图,分析按照典型Ⅰ型系统设计电流环、按照典型Ⅱ型系统设计转速环的工程化设计方法。给出串级调速系统的仿真参数,仿真结果表明:所设计的双闭环控制串级调速系统具有较快地起动、带载过程,而且能够实现无静差稳速运行,并能高效、高质量的回馈电网。
A cascade speed control system with double closed⁃loop control of speed and current was studied and designed for the wound rotor asynchronous motor.The composition and working principle of double closed⁃loop cascade speed control system were analyzed,basing on which the transfer function of each link of the designed speed control system was studied.Moreover,the dynamic structure diagram of the double closed⁃loop cascade speed control system was obtained,and the engineering design method of designing current loop according to typical type I system and speed loop according to typical type II system was analyzed.The simulation parameters of cascade speed control system were given.The simulation results show that the double closed⁃loop cascade speed control system has a fast starting and load process,and can realize stable operation without static difference,and can provide high efficiency and high quality feedback to power grid.
作者
张厚升
朱胜杰
孟宪鹏
杜钦君
ZHANG Housheng;ZHU Shengjie;MENG Xianpeng;DU Qinjun(School of Electrical&Electronic Engineering,Shandong University of Technology,Zibo 255049,China;Shandong Luneng Software Technology Co.,Ltd.,Jinan 250001,China)
出处
《山东电力技术》
2021年第9期23-27,共5页
Shandong Electric Power
基金
国家重点研发计划项目(2018YFC1707104)
国家自然科学基金面上项目(62076152)
山东省研究生教育质量提升计划项目“《现代电力传动控制系统》教学案例库建设”(SDYAL19108)
山东理工大学研究生教育质量提升计划项目“双一流背景下电气工程专业学位研究生校企联合三段螺旋式培养模式的探索与实践”(4053/220070)。
关键词
异步电机
串级调速
转矩
双闭环控制
asynchronous motor
cascade speed control
torque
double closed⁃loop control
