山东大学学报(工学版) ›› 2017, Vol. 47 ›› Issue (4): 37-42.doi: 10.6040/j.issn.1672-3961.0.2017.101
潘羿威,袁帅,陈阿莲,张承慧*
PAN Yiwei, YUAN Shuai, CHEN Alian, ZHANG Chenghui*
摘要： 针对广泛应用于直流配电网的双有源桥的启动电流冲击问题,提出一种简单的直流变换器软启动方法。在设定的启动时间内,输入侧H桥输出方波电压占空比从0逐渐增加到0.5,同时通过移相控制调节输出侧电压在相同的时间内从0逐渐增加到给定值。通过这两种方法的协同控制,可以有效抑制启动时电流冲击和直流电压振荡,系统具备很好的抗扰能力且不需要采用传统软启动的复杂模式切换。分析和仿真验证了软启动方法的有效性。
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