基于IGBT的软启动器研究
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摘要
针对传统软启动器起动转矩小的问题,研究了一种新型软启动器。软启动器的控制模块按照一定的算法,向全控器件IGBT(Insulated Gate Bipolar Transistor,绝缘栅双极型晶体管)发出一组触发脉冲,利用IGBT的通断可控特性,改变电源频率、控制定子电压,在抑制起动电流的同时,提高起动转矩,实现电机重载情况下的平稳起动。文章介绍了该软启动器的系统组成与各模块实现的功能及其基于IGBT软启动的控制策略。
Aiming at the low starting torque of the traditional soft starter,this paper designs a new kind of soft starter based on IGBT(Insulated Gate Bipolar Transistor).According to certain algorithm,the control module of the soft starter sends a group of trigger pulse to the controlled device IGBT,using the IGBT turn off characteristic to change the power frequency,control stator voltage,restrain the starting current and increase the starting torque,and stable starting is realized under the heavy load of motor.This paper introduced the composition and the function of each module and control strategy of soft starter based on IGBT system.
Aiming at the low starting torque of the traditional soft starter,this paper designs a new kind of soft starter based on IGBT(Insulated Gate Bipolar Transistor).According to certain algorithm,the control module of the soft starter sends a group of trigger pulse to the controlled device IGBT,using the IGBT turn off characteristic to change the power frequency,control stator voltage,restrain the starting current and increase the starting torque,and stable starting is realized under the heavy load of motor.This paper introduced the composition and the function of each module and control strategy of soft starter based on IGBT system.
引文
[1]牟红刚,李小宁,徐俊峰.重载机械传动系统软启动技术的研究[J].煤矿机械,2018(11):59-61.
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[4]张丽敏.三相异步电动机软起动的研究[D].哈尔滨工业大学,2010.
[5]赵新丽,李志刚.三相交流异步电动机软启动器的研究[J].黑龙江科技信息,2014(19):92.
[6]胡文浩,张硕.软启动器在大功率电动机上的应用分析[J].自动化应用,2017(12):183-184.
[7]冯伟,张永忠,武文杰.调频晶体管高频功率放大器的组成与特点[J].科技传播,2013(24):140,142.
[8]战延智.交流电动机晶闸管软启动与节电[J].电子技术与软件工程,2015(4):247-247.
[9]郭志冬.基于西门子PLC的电机转速测量系统设计[J].湖南邮电职业技术学院学报,2018(3):40-41,44.
[10]周英俊,罗荣海.绝缘栅双极型晶体管可靠性分析[J].日用电器,2014(8):34-36.
[2]章丽红.全数字式SVPWM控制的异步电动机变频调速系统[J].电力系统及其自动化学报,2006(1):58-62.
[3]宁权.一种实用型电机软启动器的设计与实现[J].中国仪器仪表,2018(11):51-56.
[4]张丽敏.三相异步电动机软起动的研究[D].哈尔滨工业大学,2010.
[5]赵新丽,李志刚.三相交流异步电动机软启动器的研究[J].黑龙江科技信息,2014(19):92.
[6]胡文浩,张硕.软启动器在大功率电动机上的应用分析[J].自动化应用,2017(12):183-184.
[7]冯伟,张永忠,武文杰.调频晶体管高频功率放大器的组成与特点[J].科技传播,2013(24):140,142.
[8]战延智.交流电动机晶闸管软启动与节电[J].电子技术与软件工程,2015(4):247-247.
[9]郭志冬.基于西门子PLC的电机转速测量系统设计[J].湖南邮电职业技术学院学报,2018(3):40-41,44.
[10]周英俊,罗荣海.绝缘栅双极型晶体管可靠性分析[J].日用电器,2014(8):34-36.