In this paper, an optimal voltage control structure for Voltage Source Inverter (VSI) in series with LC filter for Medium Voltage DC Shipboard Power System (MVDC SPS) applications is proposed. The objective of the proposed method is to design a closed loop controller that makes the output of the system optimally track a given desired signal and reject a given disturbance. Therefore, it is called Linear Quadratic Tracking (LQT) which is considered as a modified form of the Linear Quadratic Regulation (LQR). Computer simulation is used to validate the performance of the proposed control scheme under different scenarios.
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Babaei et al. (2017) studied this question.
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