Electric energy mass and powerless compensation combination controller
Title：
Electric energy mass and powerless compensation combination controller
Application Number：
 200410009536
Application Date：
 2004/09/10
Announcement Date：
 2005/03/23
Pub. Date：
 2007/11/07
Publication Number：
 1599187
Announcement Number：
 100347922
Grant Date：
 2007-11-7
Granted Pub. Date：
 2007-11-7
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 H02J 3/18
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Sun Yuanzhang, Li Guojie, Li Xiong
Key Words：
 Electric energy mass, powerless compensation, combination controller
Abstract：
 The quality of power supply and the reactive compensation combination controller belongs to the field of the dynamic voltage compensation and reactive compensation technology of the power system. It adopts the design of the series-parallel connection, connects with the silicon controlled in series and with the inverter parallelly through the measure and control circuit centered on the DSP in normal working and increases the reliability and efficiency. When the voltage falls, the inverter will send out the corresponding sine wave to compensate the needed quantity of the voltage and thus can guarantee the failure free operation of users' equipments. When users' reactive demand is excess or negative and affects the level of the voltage, it will devote the shunt-wound general-patching capacitor in stages or get rid of it to compensate the reactive. When the interphase reactive is not balanced, solve the problem of the imbalanced interphase reactive through the casting control to the shunt-wound capacitor. It also solves the problems of fall of the alternating voltage and the reactive compensation in the power system and improves the level of the voltage.
Claim：
Priority：
PCT：
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2008-4-17
  Selected patents owned by Tsinghua University filed in 2005 are loaded.
2008-3-31
  Selected patents owned by Tsinghua University filed in 2006 and 2007 are load.







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