Modeling and Control Method of Photovoltaic Micro-Inverter

Authors

Weiliang Liu, 1. State key laboratory of Alternate Electrical Power System with Renewable Energy Sources, Baoding 071003, China; ;
Chunlai Li, 2. Key Laboratory of Grid-Connected Photovoltaic Technology of Qinghai Province, Xining 810008, China;
Changliang Liu, 1. State key laboratory of Alternate Electrical Power System with Renewable Energy Sources, Baoding 071003, China; ;
Yinsong Wang, 1. State key laboratory of Alternate Electrical Power System with Renewable Energy Sources, Baoding 071003, China; ;
Yongjun Lin, 1. State key laboratory of Alternate Electrical Power System with Renewable Energy Sources, Baoding 071003, China; ;
Liangyu Ma, 1. State key laboratory of Alternate Electrical Power System with Renewable Energy Sources, Baoding 071003, China; ;
Wenying Chen, 1. State key laboratory of Alternate Electrical Power System with Renewable Energy Sources, Baoding 071003, China; ;

Abstract

Abstract: Photovoltaic micro-inverter can solve the poor reliability and low efficiency problem of centralized inverter, therefore it has a good application prospect. Small signal analysis model was established for the photovoltaic micro-inverter with flyback topology structure. Considering function of reverse current prevention being required when it was applied to the low voltage distribution network, control methods were disigned respectively for load current tracking mode and maximum power point tracking mode, and the controller parameters were optimized using genetic algorithm. Experimental and simulation results show that the micro-inverter can steadily work in two different modes, and reduce the harmonic content of output current.

Recommended Citation

Liu, Weiliang; Li, Chunlai; Liu, Changliang; Wang, Yinsong; Lin, Yongjun; Ma, Liangyu; and Chen, Wenying (2020) "Modeling and Control Method of Photovoltaic Micro-Inverter," Journal of System Simulation: Vol. 29: Iss. 3, Article 30.
DOI: 10.16182/j.issn1004731x.joss.201703030
Available at: https://dc-china-simulation.researchcommons.org/journal/vol29/iss3/30

First Page

690

Revised Date

2015-08-24

DOI Link

https://doi.org/10.16182/j.issn1004731x.joss.201703030

Last Page

697

CLC

TM85

Recommended Citation

Liu Weiliang, Li Chunlai, Liu Changliang, Wang Yinsong, Lin Yongjun, Ma Liangyu, Chen Wenying. Modeling and Control Method of Photovoltaic Micro-Inverter[J]. Journal of System Simulation, 2017, 29(3): 690-697.

DOI

10.16182/j.issn1004731x.joss.201703030