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本文研究对串联二极管式电压型逆变器,使用辅助充电线路以改善其高速时的换流性能.为了提高逆变器的换流能力,通过分析和试验,作者将原来具有R、C的换流回路,改变为R、L、C的换流线路,使其成为振荡脉冲的换流方式,换流效果显著;同时也提高了逆变器的稳定性能.为了使逆变器的设备充分发挥其输出能力,本文提供了选择换流参数的计算方法.特别值得注意的是,当负载增加,可控硅的结温增高,将导致关断时间的增大.因此,有必要结合元件的发热情况选择参数.
In this paper, we study the series diode voltage inverter, using auxiliary charging circuit to improve its high-speed commutation performance.In order to improve inverter commutation capability, through analysis and experiment, the author will have the original R, C for the exchange Flow circuit, change to R, L, C commutation line, make it become commutation way of the oscillating pulse, the commutating effect is remarkable; At the same time also improve the stability of the inverter .In order to give full play to the inverter equipment Its output capacity, this article provides a method to select the commutation parameters.Especially noteworthy is that when the load increases, the SCR junction temperature will increase the off-time.Therefore, it is necessary to combine the components of the heat Situation selection parameters.