期刊
IEEE TRANSACTIONS ON POWER SYSTEMS
卷 38, 期 1, 页码 976-979出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPWRS.2022.3216162
关键词
DC networks; load-sharing; voltage control
This letter proposes a general nonlinear control framework for load-sharing and voltage containment of dispatchable generators in dc networks. It covers centralized, distributed, and decentralized control techniques and provides a unified perspective. The framework formulates the control objective as a steady state optimization problem and derives the KKT conditions. A nonlinear integral controller is proposed to drive the system towards a steady state where the KKT conditions are satisfied and the voltages stay within limits. Different model-free methods are proposed for obtaining the integral set-point based on the optimality conditions. The effectiveness of the proposal is verified through MATLAB-based simulations.
This letter proposes a general nonlinear control framework for load-sharing and voltage containment of dispatchable generators in dc networks. Our framework covers centralized, distributed, and decentralized control techniques and provides a unified perspective. First, we formulate the control objective as a steady state optimization problem and derive the Karush-Kuhn-Tucker (KKT) conditions. Second, we propose a nonlinear integral controller that drives the system towards a steady state where the KKT conditions are satisfied and the voltages stay within limits. Third, we propose different model-free methods for obtaining the integral set-point, based on the optimality conditions. Finally, we verify the effectiveness of our proposal via MATLAB-based simulations.
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