RT Journal Article
A1 Washima Tasnin
A1 Lalit C. Saikia

PB iet
T1 Maiden application of an sine–cosine algorithm optimised FO cascade controller in automatic generation control of multi-area thermal system incorporating dish-Stirling solar and geothermal power plants
JN IET Renewable Power Generation
VO 12
IS 5
SP 585
OP 597
AB The present study highlights an attempt of integrating the geothermal power plant (GTPP) in automatic generation control of an interconnected system comprising of dish-Stirling solar–thermal system (DSTS) and the conventional thermal system (TS). Generation rate constraints of 3%/min are considered for the TSs. A new fractional-order (FO) cascade controller named as FO proportional (P)–integral (I)–FOP–derivative (D) (FOPI–FOPD) is proposed as secondary controller and performance is compared with commonly used classical controllers. Controller gains and other parameters are optimised using a novel stochastic algorithm called sine–cosine algorithm. The analysis reveals the superiority of FOPI–FOPD over others. The effect of inclusion of GTPP and DSTS is also analysed on the conventional TS, both in a combined manner and separately. Sensitivity analysis reflects the robustness of optimum FOPI–FOPD controller gains and other parameters obtained at nominal and recommend that the optimised parameters do not suffer much deviations and are able to withstand wide fluctuations in system operating conditions, system loading and inertia constant. The dynamic behaviour of the system is studied with 1% step load perturbation in area1.
K1 automatic generation control
K1 DSTS
K1 secondary controller
K1 generation rate constraints
K1 FOPI-FOPD controller gains
K1 dish-Stirling solar-thermal system
K1 inertia constant
K1 system operating conditions
K1 geothermal power plants
K1 fractional-order cascade controller
K1 dish-Stirling solar power plants
K1 GTPP
K1 sine-cosine algorithm
K1 system loading
K1 FO cascade controller
K1 interconnected system
K1 stochastic algorithm
K1 multiarea thermal system
DO https://doi.org/10.1049/iet-rpg.2017.0063
UL https://digital-library.theiet.org/;jsessionid=jgdcf7je682r.x-iet-live-01content/journals/10.1049/iet-rpg.2017.0063
LA English
SN 1752-1416
YR 2018
OL EN