Secondary Voltage Control of DC Distribution Network Based on Model Predictive Control
- Resource Type
- Conference
- Authors
- Ma, Yingqiao; Li, Haikuo; Wei, Xiaoyu; Du, Wenfei; Zhu, Xiaorong
- Source
- 2021 IEEE 2nd China International Youth Conference on Electrical Engineering (CIYCEE) Electrical Engineering (CIYCEE), 2021 IEEE 2nd China International Youth Conference on. :1-6 Dec, 2021
- Subject
- Power, Energy and Industry Applications
Robotics and Control Systems
Transportation
PI control
Distribution networks
Predictive models
Prediction algorithms
Linear programming
Mathematical models
Voltage control
DC distribution network
Energy storage
Distributed secondary control
Model predictive control
Voltage optimization
- Language
Aiming at the voltage problems of DC distribution network with multiple groups of PV-Battery energy storage units, a distributed voltage secondary control strategy based on model predictive control algorithm is proposed in this paper. A multi-step prediction consistency model is designed as the voltage prediction model. The prediction coefficients are obtained by minimizing the objective function, contributing to the optimal secondary compensations which are added to the primary control. Deviation adjustment problems under the PI controller in traditional consistency algorithm are transformed into the voltage tracking problems under the model predictive controller. This method effectively solves the problems of poor transient characteristics of the traditional consistency algorithm and reduces control errors in some cases. The effectiveness and superiority of the proposed strategy in different conditions have been verified by building a model on MATLAB/Simulink.