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公开(公告)号:US5905643A
公开(公告)日:1999-05-18
申请号:US35499
申请日:1998-03-05
申请人: Kurt Gopfrich , Olaf Hadrich
发明人: Kurt Gopfrich , Olaf Hadrich
摘要: A method and a circuit arrangement for shaping any actual a.c. voltage characteristic into any reference a.c. voltage characteristic are described, which store the excess power in voltage overshoots in the form of a current in a current storage device using power electronic switching elements, and thus they compensate for the power deficiency when there is a voltage shortfall. The power electronic switching elements are driven by a digital automatic state machine through appropriate control pulses so that there is no fixed switching rate. The preferred field of application is for active filtering of the voltage of an electric three-phase or a.c. power supply system.
摘要翻译: 一种用于成形任何实际交流电压的方法和电路装置。 电压特性为任意参考值。 描述了使用电力电子开关元件在电流存储装置中以电流形式存在过电压的过剩功率的电压特性,因此它们在电压不足时补偿功率不足。 功率电子开关元件由数字自动状态机通过适当的控制脉冲驱动,使得不存在固定的开关速率。 优选的应用领域是用于有源滤波电三相或直流电压。 供电系统