Analysis method for DVR compensation policy
An analysis method and strategy technology, applied in the direction of AC network circuits, instruments, and regulating electrical variables, etc., can solve problems such as unclear physical concepts and difficult analysis of voltage sags (swells), and achieve simple calculations and facilitate analysis Definite, physically-clear effects
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[0024] The preferred embodiments will be described in detail below in conjunction with the accompanying drawings. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.
[0025] figure 2 It is a schematic diagram of the DVR principle. figure 2 , the dynamic voltage compensator DVR is connected in series with the system power supply U S and load, the load voltage U LOAD is the system voltage U S and the sum of DVR compensation voltage. During normal operation, the power supply voltage is within the allowable range, the DVR output compensation voltage is 0, and the load voltage U LOAD equal to the system voltage U S . When the system supply voltage U S When a sag (swell) occurs, the DVR outputs a compensation voltage U DVR , so that the load voltage U LOAD Operate within the allowable range. Due to the limited capacity of the DVR device, its output voltage has a limit, which ...
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