Combined compensation system of injection-type hybrid active power filter and static var compensator
A technology of static var compensation and source filter, which is applied in active power filtering, reactive power adjustment/elimination/compensation, flexible AC transmission system, etc., to achieve the effect of reducing capacity, reducing cost and improving filtering effect
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[0014] Such as figure 1 Shown is the connection diagram of the joint compensation system in the electrified traction system. Considering the structural characteristics of the electrified railway traction system and the operating conditions of locomotives, in order to achieve the purpose of optimizing and comprehensively controlling reactive power, negative sequence and harmonics, a joint compensation system is installed on both power supply bridge arms of the traction system.
[0015] see figure 2 , the joint compensation system of the present invention is composed of an injection hybrid active power filter and a static var compensator (SVC), which are all connected to the power supply 1 of the traction power supply system. The injection hybrid active power filter is composed of a separate injection active power filter 4 and a high-pass filter 2 . Separate injection active power filter includes three-phase uncontrolled rectifier bridge, inverter, output filter reactor L o ...
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