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2. 发明授权

US06178076B1 Power-electronic circuit arrangement for compensating for mains system disturbances and mains voltage reductions 失效
标题翻译：用于补偿电力系统干扰和电源电压降低的电力电子电路装置
公开(公告)号：US06178076B1
公开(公告)日：2001-01-23
申请号：US09285448
申请日：1999-04-02
申请人： Peter D{umlaut over (a)}hler , Horst Gr{umlaut over (u)}ning
发明人： Peter D{umlaut over (a)}hler , Horst Gr{umlaut over (u)}ning
IPC分类号： H02J312
CPC分类号： H02J3/24 , H02J3/1814 , Y02E40/18 , Y10T307/615
摘要： In a power-electronic circuit arrangement for compensating for mains system voltage reductions and mains system disturbances, a second auxiliary voltage source is provided, whose voltage is chosen to be less than that of the first auxiliary voltage source. The second auxiliary voltage source can be coupled to the feeder converter with the aid of a switch. The circuit according to the invention can thus operate in two different modes: when the first auxiliary voltage source is coupled to the feeder converter, the available voltage is sufficiently high to compensate for mains system failures or mains system voltage reductions. However, when less severe disturbances occur, the second, lower auxiliary voltage source is coupled to the feeder converter, and mains system disturbances can in consequence be compensated for without any major switching losses. The circuit then operates in a regulated mode, and the switching losses of the semiconductor switches in the feeder converter can be kept at an acceptable level, which is typically less than the losses when switched on. A further option for influencing the voltage is achieved by pulsing, in particular by pulse-width modulation of the switches, in a regulated mode.
摘要翻译：在用于补偿市电系统电压降低和电力系统干扰的电力 - 电子电路装置中，提供第二辅助电压源，其电压被选择为小于第一辅助电压源的电压。借助于开关，第二辅助电压源可以耦合到馈线转换器。因此，根据本发明的电路可以以两种不同的模式工作：当第一辅助电压源耦合到馈电转换器时，可用电压足够高以补偿电网系统故障或电力系统电压降低。然而，当发生不太严重的干扰时，第二个较低的辅助电压源耦合到馈线转换器，因此在没有任何重大开关损耗的情况下可以补偿电网干扰。然后，电路以调节模式工作，并且馈线转换器中的半导体开关的开关损耗可以保持在可接受的水平，其通常小于接通时的损耗。影响电压的另一个选择是通过在调节模式下脉冲，特别是脉冲宽度调制开关实现的。

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