Direct power compensation in AC distribution networks with SCES systems via PI-PBC approach
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Date
2020-04-23
Authors
Gil-González, Walter
Martín-Serra, Federico
Montoya, Oscar Danilo
Ramírez, Carlos Alberto
Orozco-Henao, Cesar
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Abstract
Here, we explore the possibility of employing proportional-integral passivity-based control (PI-PBC) to support active and reactive power in alternating current (AC) distribution networks by using a supercapacitor energy storage system. A direct power control approach is proposed by taking advantage of the Park’s reference frame transform direct and quadrature currents ( id and iq ) into active and reactive powers (p and q). Based on the open-loop Hamiltonian model of the system, we propose a closed-loop PI-PBC controller that takes advantage of Lyapunov’s stability to design a global tracking controller. Numerical simulations in MATLAB/Simulink demonstrate the efficiency and robustness of the proposed controller, especially for parametric uncertainties.