METHOD AND CONTROL SYSTEM FOR CONTROLLING A VOLTAG

专利名称：METHOD AND CONTROL SYSTEM FOR

CONTROLLING A VOLTAGE SOURCECONVERTER USING POWER-SYNCHRONISATION CONTROL

发明人：HARNEFORS, Lennart申请号：EP18159233.8申请日：20180228公开号：EP3534522A1公开日：20190904

专利附图：

摘要：A method of controlling a grid-connected voltage source converter, VSC, using

power-synchronisation control, wherein the method comprises: determining an activepower control error, determining a VSC phase angle based on an integration of a sumincluding a scaled active power control error and a scaled imaginary part of a voltage ofcommon coupling, determining a damping component based on a virtual dampingresistance, a VSC current vector and a reference current vector for the VSC currentvector, determining a voltage vector based on a VSC voltage magnitude and the dampingcomponent, transforming the voltage vector to a current vector, comparing a magnitudeof the current vector with a maximum threshold current value, and in case the magnitudeof the current vector is greater than the maximum threshold current value: reducing themagnitude of the current vector to a value below the maximum threshold current valueto obtain a limited current vector, transforming the limited current vector to a limitedvoltage vector, controlling the VSC based on the VSC phase angle and the limited voltagevector, multiplying an imaginary part of a voltage of common coupling with a gain toobtain a scaled imaginary part of voltage of common coupling.

申请人：ABB Schweiz AG

地址：Brown Boveri Strasse 6 5400 Baden CH

国籍：CH

代理机构：Savela, Reino Aleksi

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