调感式串联谐振智能装置自动化设计

摘要

In order to solve the problems of the size of transformer and regulator getting very large and inconvenient in the power frequency withstand voltage test,the technology of PLC and resonance were investigated in the power frequency series resonance equipment.After the analysis of resonant state,the relationship between quality factor and sample's capacity was established.A method was presented to control the regulator by PLC.The method was evaluated on the theory of resonance,it changes the inductance of reactor to make the circuit in the resonant state,and control the contact of the regulator by PLC.As a result,the power frequency withstand voltage test of samples is realized under a low voltage.The experimental results show that an equipment of large capacity can accomplish the power frequency withstand voltage test under a small capacity by using the power frequency series resonance equipment,in addition,it makes the experiment more convenient.%基于串联谐振原理,分析试品容量与品质因数的内在关系,通过PLC进行调压控制,改变电抗器的电感量使电路达到谐振,借助低压输入耐压试验,不但功能完善,而且改进了原来装置笨、重、大的问题,同时引入了智能控制的理念,完全实现了自动化；结果表明不但大容量的设备在较小的电源容量下不但能实现耐压试验,而且系统提供的参数完备、科学可靠.