Neural Network Inverse Control for the Output Voltage of Energy Storage Inverter in Micro-grid

Authors

Weiliang Liu, Automation Department of North China Electric Power University, Baoding 071003, China;
Yongjun Lin, Automation Department of North China Electric Power University, Baoding 071003, China;
Changliang Liu, Automation Department of North China Electric Power University, Baoding 071003, China;
Wenying Chen, Automation Department of North China Electric Power University, Baoding 071003, China;
Liangyu Ma, Automation Department of North China Electric Power University, Baoding 071003, China;

Abstract

Abstract: In order to improve the output voltage waveform quality of energy storage inverter in micro-grid, an inverse control method was proposed based on BP neural network. Mathematical model of the energy storage inverter was established, and the main factors affecting the output voltage were analyzed, and then the expansion inverse model of the system was established based on BP neural network. In order to overcome the local optimum disadvantage in BP training algorithm, gravity algorithm was adopted to optimize the network initial parameters. The neural network inverse model was put in series with its original model to form a pseudo linear system, and then PI controller was selected to perform the single loop control. The simulation results show that the proposed control method can effectively improve the dynamic response speed of the inverter output voltage and reduce the harmonic content. Experiment is performed on 10 kW inverter prototype, which proves the proposed method feasibility and effectiveness.

Recommended Citation

Liu, Weiliang; Lin, Yongjun; Liu, Changliang; Chen, Wenying; and Ma, Liangyu (2020) "Neural Network Inverse Control for the Output Voltage of Energy Storage Inverter in Micro-grid," Journal of System Simulation: Vol. 28: Iss. 11, Article 24.
DOI: 10.16182/j.issn1004731x.joss.201611024
Available at: https://dc-china-simulation.researchcommons.org/journal/vol28/iss11/24

First Page

2813

Revised Date

2015-11-26

DOI Link

https://doi.org/10.16182/j.issn1004731x.joss.201611024

Last Page

2822

CLC

TM85

Recommended Citation

Liu Weiliang, Lin Yongjun, Liu Changliang, Chen Wenying, Ma Liangyu. Neural Network Inverse Control for the Output Voltage of Energy Storage Inverter in Micro-grid[J]. Journal of System Simulation, 2016, 28(11): 2813-2822.

DOI

10.16182/j.issn1004731x.joss.201611024