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Combined with an HVDC transmission system closely, the voltage stability of the system is studied which is based on the sensitivity analysis method. First, a hybrid HVDC system sensitivity calculation method is deduced. On the basis of the method, the active and reactive power sensitivity matrix which is about the voltage amplitude of several AC transmission system important nodes to the DC channel...
In the calculation of AC / DC power flow, how to consider the control mode of HVDC transmission system effectively is a problem that must be considered in power system planning and operation. In this paper, based on the principle of equivalent power and AC / DC system alternating decoupling solving, a power flow calculation program is presented. The main control modes of HVDC transmission system and...
The paper studies reactive power compensation strategy of wind farm based on optislip wound rotor induction generators (WRIGs). The WRIGs wind farm shares high market occupancy in China, but academic researches on this grid-connected wind generation are few. Due to the WRIGs wind turbines not allowing the control of the reactive power, so it is necessary that reactive power compensation device is...
Misbalance between reactive power production and consumption in power system causes the variation of node voltage outside the proposed limit. It is a main task for system operators to maintain the voltage profile against any unexpected disturbance. In this paper a practical coordinated secondary voltage control (CSVC) scheme was present, which was based on the optimal power flow algorithm. Additional...
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