Abb Schweiz Ag

Abb Research Ltd.

Charles Sao

Yao Liang Chen

Guoju Zhang

Bertil Berggren

Kerstin Linden

Rajat Majumder

Yao Chen

The present invention provides coordinated control methods of generator and SVC for improving power plant active power throughput and controller thereof. The method comprises: measuring the required input parameters for the generator and SVC control; judging the system topology and the control mode of SVC to determine the operation mode; and calculating the control reference based on the operation mode to control the generator and/or SVC. The proposed methods and coordinated controllers enable the SVC to share the required reactive power output of the power plant, convert the generator into 'unity-power-factor-generator', and therefore extend the active power output capability of the power plant.

Coordinated control method of generator and SVC for improving power throughput and controller thereof

Method and apparatus for controlling at least one generator and a Static Var Compensator (SVC) to improve dynamic performance of the power plant are provided. The method comprises: obtaining the required input parameters for control of said generators and SVC; determining a control mode of the generators and the SVC; calculating the control references based on the input parameters and the control mode of the generators and the SVC; and controlling the generators and/or the SVC according to the control references. The invention also relates to a corresponding apparatus which can implement the method of the invention.

Method and apparatus for power plant dynamic var regulation and transient stability improvement

A method for controlling power flow within a DC power flow within a DC power transmission network includes two or more interconnected converter stations. The method includes the steps of: establishing a common feedback signal (U, &#x168;) to the converter stations, the common feedback signal (U, &#x168;) being based on an overall voltage level in the DC transmission, power network; providing, in the converter stations, a control signal (S, S, S, S) based on the common feedback signal (U) and a drooped error signal (P, U); and controlling the power flow within the DC power transmission network towards set operating points (U,) by using the control signal (S, S, S, S). A control device and computer program product is also described.

Method and control device for controlling power flow within a DC power transmission network

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Vasteras, Sweden

Charles Sao