Incorporation of Synchronous Power Controlled Energy Storage System in Wind Farms to Provide Inertial and Primary Frequency Support

Publication Type:
Conference Proceeding
26th Iranian Conference on Electrical Engineering, ICEE 2018, 2018, pp. 1379 - 1384
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© 2018 IEEE. Modern power systems are characterized by high renewables penetration. Therefore, dynamic frequency support from wind farms is decisive. However, existing wind farms are not designed to meet the emerging grid code requirements. In this regard, this research proposes an Energy Storage System (ESS) solution to get integrated into the present wind farms. This alternative effectively provides the desired dynamic frequency support without spilling the wind power. A Synchronous Power Controller (SPC) is well tailored to emulate electrochemical and electrical characteristics of a synchronous generator during grid support by excavating the chemical energy stored in the ESS. Also, a new State Of Charge (SOC) controller is implemented in the neighboring conventional power plant governor to maintain the ESS state of the charge in the optimum setpoint and mitigate the need for a high capacity ESS. Simulation results on a representative power network in MATLAB/SIMULINK platform demonstrate the feasibility of the proposed hybrid system and SOC controller to provide dynamic frequency support and maintaining the SOC.
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