Genetic algorithm based control for VSC HVDC

Abstract

VSC HVDC has a wide application prospect and it has many merits in contrast to conventional HVDC. The models of AC/DC hybrid power system with VSC HVDC are established in this paper. Utilizing the fast power flow adjustment ability of VSC HVDC, a novel control strategy stabilizing AC and DC system synthetically is proposed. A performance index, which is composed of generator and AC system variables, is formed for the optimization of controller parameters by using Genetic Algorithm (GA). The simulation results illustrate that with the proposed control strategy, the AC and DC system can recover rapidly from a large disturbance; furthermore, they have no negative influence on each other.

PWM based VSC-HVDC systems — A review

“…New converter topologies are proposed to convert existing HVAC transmission into VSC-HVDC as the one in [53]. Others proposed new control technique for transmission systems composed of parallel HVAC and VSC-HVDC links [4], [54], [15] (Fig. 5).…”

“…In contrast, VSC-HVDC can easily supply remote loads and connect islanded DG networks or renewable sources to the grid [9]- [14]. Similarly, VSC-HVDC systems can easily supply ac networks with a low short circuit ratio [15]. 6) Harmonic mitigation and tuning of filters is a significant challenge using conventional HVDC [16].…”

Reactive power control to enhance the VSC-HVDC system performance under faulty and normal conditions

“…Recently there are new methods for optimization called meta heuristic methods which has ability to get the optimal value of any parameter near global value fast. Genetic algorithm is used to get the parameters of controller [9]. Artificial bee colony and mine blast algorithms are applied to get optimal gain of VSC-HVDC system with sliding mode control [10].…”

Parameters Optimization of VSC-HVDC Control System Based on Simplex Algorithm

“…With the development of soft computing in artificial intelligence field, many applications of soft computing in power system are going on. The papers [4]- [7] apply fuzzy control, neural network control and genetic algorithms to conventional HVDC control system. However, when applying fuzzy control, the relationship between k, T n and e (i.e.…”