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In this paper the hybrid BA/TS is developed. This hybrid is merged from bee algorithm (BA) and tabu search (TS) to solve economic dispatch (ED) problem. The 6 units system and 10 units system are used to demonstrate for the improvement of the proposed by comparing with general BA. The generator constraint is used to determine the power of generator of test system for normal operation. All test results...
Nowadays some nuclear power plant in Japan is shut down due to problem of security in earthquake disaster. Consequently, Japan will encounter a lack of electrical energy in the future if new electrical generation is not constructed. Solar energy is one of appropriate renewable energy for Japan. Solar panel produces electrical energy by using the natural solar radiation from sun. PV Solar farm consists...
Cost minimization is one of the main goals in electric market so economic dispatch and load allocating, named as optimal power flow (OPF), are more interesting concerns. In this paper a Modified Genetic Algorithm (MGA) is presented for the solution of the OPF. The control variables are unit active power outputs, generator-bus voltages and discrete transformer-tap settings. To overcome the operating...
Solving the deterministic unit commitment (UC) model may yield the optimal commitment for each unit for a certain condition of the power system. Changing the system condition due to a sudden change or uncertainties may render the obtained solution infeasible or inapplicable to the system under study. This paper presents a fuzzy model to handle uncertainties associated with the UC problem and introduces...
This paper presents a new application of the Bees algorithm (BA) for solving the optimal power flow (OPF). The power flow is optimized to find minimum fuel cost of power system with various constraints. The proposed methodology which is evaluated on IEEE 30 and IEEE 118 bus systems is implemented to minimize the total fuel cost considering operational constraints i.e. power flow equations, generation...
This Paper presents a Biogeography-Based Optimization (BBO) algorithm to solve Optimal Power Flow (OPF) problems OPF) problems of a power system with generators having quadratic fuel cost characteristics. Different operational constraints such as generator capacity limits, power balance constraint, line flow limits, bus voltages, transformer tap settings and reactive power compensating device settings...
This paper presents a method for environmentally constrained economic dispatch in power systems. Economic dispatch problem is basically an optimization problem where objective function may be highly nonlinear, non-convex, non-differentiable and may have multiple local minima. Therefore classical optimization methods may be trapped to any local minima and may not be able to reach the global minima...
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