Load-frequency control in a multi-source power system connected to wind farms through multi terminal HVDC systems

被引:46
作者
Tavakoli, Mehdi [1 ]
Pouresmaeil, Edris [2 ,3 ]
Adabi, Jafar [4 ]
Godina, Radu [5 ]
Catalao, Joao P. S. [3 ,5 ,6 ,7 ]
机构
[1] Mazandaran Univ Sci & Technol, Dept Elect Engn, Babol Sar, Mazandaran, Iran
[2] Aalto Univ, Dept Elect Engn & Automat, Espoo 02150, Finland
[3] Univ Lisbon, Inst Super Tecn, INESC ID, P-1049001 Lisbon, Portugal
[4] Babol Noshirvani Univ Technol, Fac Elect & Comp Engn, POB 484, Babol Sar, Iran
[5] Univ Beira Interior, C MAST, P-6201001 Covilha, Portugal
[6] Univ Porto, INESC TEC, P-4200465 Porto, Portugal
[7] Univ Porto, Fac Engn, P-4200465 Porto, Portugal
关键词
Frequency control; Particle swarm optimization (PSO); Wind farm; Multi-terminal HVDC; AUTOMATIC-GENERATION CONTROL; DIFFERENTIAL EVOLUTION ALGORITHM; TRANSMISSION; PARAMETERS; DESIGN;
D O I
10.1016/j.cor.2018.03.002
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
This paper addresses the wind farm contribution in frequency control during the integration in the power grid. In the proposed model, the wind farm utilizes inertia control and droop control techniques with the purpose of improving the frequency regulation. In order to achieve optimal results, all the parameters of the controllers for the different units in the power grid are obtained by using a particle swarm optimization algorithm (PSO) and by introducing a modified objective function instead of a conventional objective function e.g., Integral Time-weighted Absolute Error (ITAE). Also, different constraints such as reheat turbine, time delay, governor dead band and generation rate constraint (GRC) are considered for thermal and hydro units with the aim of studying a more realistic power system, which is the main contribution of this paper when compared to the other works in this field. It is shown that, in case of a perturbation in power demand, the system frequency will recover quickly and effectively in comparison with the traditional approaches. In addition, a sensitivity test is carried out in a single power grid area in order to examine the effectiveness of the proposed approach. Then, the system is extended to a multi-area power system using a multi-terminal HVDC for further investigation of the suggested strategy. Simulation results are presented in order to assess the performance of the proposed approach in the power system. (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码:305 / 315
页数:11
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