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Appl. Sci. 2018, 8(4), 641; https://doi.org/10.3390/app8040641

Power System Voltage Correction Scheme Based on Adaptive Horizon Model Predictive Control

1
State Grid Shandong Electric Power Research Institute, Jinan 250003, China
2
Key Laboratory of Power System Intelligent Dispatch and Control of Ministry of Education, Shandong University, Jinan 250061, China
3
State Grid Shandong Electric Power Company, Jinan 250001, China
*
Author to whom correspondence should be addressed.
Received: 27 February 2018 / Revised: 23 March 2018 / Accepted: 16 April 2018 / Published: 20 April 2018
(This article belongs to the Special Issue Smart Grid and Smart Cities Activities)
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Abstract

Model predictive control (MPC) is commonly used to compensate for modeling inaccuracies and measurement noise in voltage control problems. The length of the prediction horizon and control horizon of a MPC-based method has significant impact on the control performances. In existing relevant works, those horizon parameters are determined off-line based on experience or enumeration, and keeps constant during the entire receding-horizon optimization process. This paper presents a system voltage correction scheme based on adaptive horizon model predictive control (AH-MPC). The reactive power compensation and voltage regulation devices are coordinated to maintain the system voltages within a desired range. An evaluation index is proposed to determine the horizon parameters, which reflects the maximum voltage regulation ability with the current parameter configuration. Within each sampling interval, the horizon parameters are updated according to the evaluation index and real-time measurements periodically, which comprehensively considers the system uncertainties and voltage recovery speed, and the computational effort is remarkably reduced. The validation and effectiveness of the proposed method is verified by the simulation analysis on the test system. View Full-Text
Keywords: voltage control; adaptive horizon; model predictive control (MPC); power system; real-time control voltage control; adaptive horizon; model predictive control (MPC); power system; real-time control
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Zhang, Y.; Liu, M.; Zhang, W.; Sun, W.; Hu, X.; Kong, G. Power System Voltage Correction Scheme Based on Adaptive Horizon Model Predictive Control. Appl. Sci. 2018, 8, 641.

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