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Because of the inherent defects of the traditional High-Voltage Direct Current (HVDC ) transmission systems, this paper proposes a control method of flexible HVDC transmission system based on shuffled frog leaping algorithm(SFLA), which will improve the anti-interference ability of the power system by optimizing active disturbance rejection controller(ADRC).
This paper study the power system restoration procedure with external power supplies through HVDC transmission channel. The simplified models of the transmission system under different control modes are established and their stability margin are analyzed by root locus diagram. In consideration of the influence of the short circuit capacity and rotating inertia of power grid at sending end on the stability...
Insufficient reactive power in DC converter stations may deteriorate the whole system operating conditions. In this paper, the ratio between reactive power consumption and active power transmission as a HVDC system provides Emergency DC Power Support (EDCPS) is analyzed and derived. Then multicircuit HVDC system EDCPS Strategies with reactive power controls, such as emergency reactive power compensation,...
This paper exposes the feasibility to connect high voltage DC transmission (HVDC) systems to very weak AC networks leading to short circuit ratios (SCR) lower than 1.5. The existing literature does not provide solutions for such a low SCR systems and often the HVDC expansions cannot grow enough as expected. The studies developed are for the short-term voltage stability phenomena, where a solution...
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