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Integration of fixed-speed wind Chapter | 14  385


             maximization of PPL and DPF, and minimization of the THDV Mean and
             VUF.The VUF and harmonic distortion limits, stated in the standards and
             the desired DPF and rms bus voltage ranges, were regarded as constraints of
             the optimal design problem. The PSO algorithm was employed to find the
             optimal parameters of the proposed compensator.
                The simulation results were presented for the system without and with
             three different compensators as the proposed optimal compensator
             (SC 1 STF), optimal SC, and optimal STF designs. It should be noted that
             optimal SC design was attained by considering the proposed compensator’s
             problem formulation except the objectives and constraints related to voltage
             harmonic distortion. In addition, optimal STF design was provided regarding
             the proposed compensator’s problem formulation except the objectives and
             constraints related to voltage unbalance.
                It can clearly be mentioned from the analysis that the proposed one
             achieved the highest PPL, and it provided better collective mitigation of
             THDV Mean , DPF, and VUF when compared to the other two compensators.
                Finally, performance of the proposed optimal compensator was tested
             under varying utility voltage and load-side conditions. The results showed
             that the proposed compensator provides THDV Mean , PPL, and DPF enhance-
             ment under low loading levels and ideal sinusoidal utility voltages even if it
             was optimally designed for the rated loading level and considerably distorted
             and unbalanced utility voltage conditions. In addition to that, it avoided VUF
             increment for low loading level or ideal utility voltage conditions.

             References

             [1] S.H.E. Abdel Aleem, A.F. Zobaa, H.M. Abdel Mageed, Assessment of energy credits for the
                enhancement of the Egyptian Green Pyramid Rating System, Energy Policy 87 (2015) 407 416.
             [2] S. Sakar, M.E. Balci, S.H.E. Abdel Aleem, A.F. Zobaa, Integration of large-scale PV plants
                in non-sinusoidal environments: considerations on hosting capacity and harmonic distortion
                limits, Renew. Sustain. Energy Rev. 82 (2018) 176 186.
             [3] F.H. Guan, D.M. Zhao, X. Zhang, B.T. Shan, Z. Liu, Research on distributed generation
                technologies and its impacts on power system, in: SUPERGEN’09, Nanjing, China, April
                2009, pp. 1 6.
             [4] S.M. Ismael, S.H.E. Abdel Aleem, A.Y. Abdelaziz, A.F. Zobaa, State-of-the-art of hosting
                capacity in modern power systems with distributed generation, Renew. Energy 130 (2019)
                1002 1020.
             [5] P.S. Georgilakis, N.D. Hatziargyriou, A review of power distribution planning in the mod-
                ern power systems era: models, methods and future research, Electr. Power Syst. Res. 121
                (2015) 89 100.
             [6] Conti S., Raiti S., Tina G., Vagliasindi U. Distributed Generation in LV distribution net-
                works: voltage and thermal constraints, in: 2003 IEEE Bologna PowerTech   Conf.,
                Bologna, Italy, June 2003, pp. 413 418.
             [7] F.D. Kanellos, N.D. Hatziargyriou, The effect of variable-speed wind turbines on the opera-
                tion of weak distribution networks, IEEE Trans. Energy Convers. 17 (2002) 543 548.
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