Optimal planning of large passive-harmonic-filters set at high voltage level

This paper proposes the optimal, planning of large passive-harmonic-filters set at high voltage level based on multi-type and multi-set of filters, fr om which, the types, set numbers, capacities and the important parameters o f filters are well determined to satisfy the requirements of harmonic filte ring and power factor. Four types of filters, namely single-tuned filter, s econd-order, third-order and C-type damped filters are selected for the pla nning. Firstly, the characteristics of filters are analyzed. The cost funct ion and the constraints of filters and system are constructed for formulati ng the optimization problem of the planning of filters, Secondly the simula ted-annealing (SA) algorithm for searching optimal solution of planning of biters is developed, Finally, three cases of filter planning are presented to show that the superiority and availability of the SA algorithm and propo sed planning results of filters.