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In this paper, a Fractional-Order Fuzzy PID (FOFPID) controller is designed for and applied to the Egyptian Power System Load Frequency Control (ELFC) to achieve superior performance without steady-state error in the system frequency. The hybrid linear FOFPID controller is made by grouping the Proportional-Integral (PI) and Proportional-Derivative (PD) parts of the PID with the Fuzzy Inference Engine...
With the increase in load demand, generation should also be increased or interconnection of network must be done to ensure the quality of power generated and to feed the load. LFC is used for stabilizing the factors in the power system (i.e frequency and tie-line power) with the use of different controllers. A system using three sources of generation are used and simulated in MATLAB2015b
This paper addresses adaptive fuzzy logic controller for load frequency control of a multi-source two area power system with different power generation sources viz hydro gas & thermal power plant. Expert knowledge is required for conventional fuzzy logic control in developing parameters. Whereas in this method rules are tuned online by adaptation algorithm according to operating condition. The...
This paper presents an analysis of the simplified model of the Great Britain (GB) power system for 2030 projections. Electric Vehicles (EVs), Battery Energy Storage System (BESS), and Fly-Wheel Energy Storage System (FESS) are connected in the primary frequency control loop. PD -like Fuzzy Logic controller (PDFLC) is used as a secondary frequency control as well as the classical PID controller for...
This paper presents a fuzzy based frequency control strategy by the aggregator based plug-in electric vehicles (PEVs). The frequency control is proposed from the view point of the frequency instability which possibly caused by the distribution level PV power penetration and load demand variation as well as uncontrolled charging and discharging of PEVs. Two fuzzy logic controllers (FLCs) have been...
In islanding mode, system frequency is severely disturbed due to imbalance between generation and load demand resulting in overloading or loss of generation cases. In order to cope with these events, under-frequency load shedding scheme (UFLS) is applied to stabilize the frequency. This paper presents an intelligent under frequency load shedding scheme implemented on mini-hydro operating in islanded...
A photovoltaic (PV) system's output power fluctuates according to the weather conditions. Fluctuating PV power causes frequency deviations in the power utilities when the penetration is large. Usually, an energy storage system (ESS) is used to smooth the PV output power fluctuations and then the smoothed power is supplied to the utility. In this paper, a simple fuzzy-based frequency-control method...
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