LCL filtering based voltage type active rectifier steady control system and method
Title：
LCL filtering based voltage type active rectifier steady control system and method
Application Number：
 200710120875
Application Date：
 2007/08/28
Announcement Date：
 2008/03/12
Pub. Date：
Publication Number：
 101141100
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 H02M 7/219, H02M 1/12, H02M 1/42
Applicant(s)：
 Tsinghua University
Inventor(s)：
 Jiang Xinjian, Huang Yuqi, Qiu Arui
Key Words：
 LCL filtering, voltage type, active rectifier, steady control
Abstract：
 The utility model relates to a voltage type source rectifier stable control system and method based on LCL filter wave, belonging to the source rectifying technical range of electronic technology. The system comprises a DC voltage control cell, a current control cell, an active damp control cell and a voltage space vector generating cell. the utility model produces six PWM signals to gain the current signal of the filter wave capacitor branch directly or indirectly, outputs the reference value of the damp voltage and achieves the stable control on the system. The method provides an adjustable sine control on the DC voltage output and input current through the active damp vector control of the voltage type source rectifier stable control system, the damp voltage reference value outputted by the active damp vector control cell, and the network voltage to execute summation operation. The utility model has the advantages of controllable DC voltage, low aberrance rate of the network input current, high power factor, satisfying the requirement of energy double-redirection flowing, and achieving the stability of the system without increasing the quantity of hardware damp resistance.
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2008-4-17
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