A Fuzzy Controlled Incremental Conductance Method for Z-Source PV Inverter MPPT

DOI

10.2991/seee-15.2015.26How to use a DOI?

Keywords

MPPT; Z-source inverter; photovoltaic; fuzzy control; incremental conductance

Abstract

Based on conventional incremental conductance (Inc-Cond) method, a fuzzy controlled incremental conductance controller is proposed for Z-source PV inverter to realize its maximum power point tracking (MPPT). The principle of Z-source PV inverter is illustrated. Then an improvement of SVPWM for Z-source inverter is introduced for DC-AC conversion. The fuzzy rules and membership functions are designed to generate adaptive voltage step size of incremental conductance. Simulation and experiment results reveal that proposed fuzzy controlled Inc-Cond method can track maximum power point (MPP) much faster and achieve less fluctuation at the vicinity of MPP. Experimental results also verified proposed fuzzy algorithm is feasible to realize with DSP controllers, and the improved SVPWM combined with proposed algorithm can be easily implemented with Z-source PV inverter.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Jingwei Zhang
AU  - Honghua Wang
AU  - Chengliang Wang
AU  - Wei Han
AU  - Zhebei Wang
AU  - Rong Sun
PY  - 2015/10
DA  - 2015/10
TI  - A Fuzzy Controlled Incremental Conductance Method for Z-Source PV Inverter MPPT
BT  - Proceedings of the 2015 International Conference on Sustainable Energy and Environmental Engineering
PB  - Atlantis Press
SP  - 103
EP  - 107
SN  - 2352-5401
UR  - https://doi.org/10.2991/seee-15.2015.26
DO  - 10.2991/seee-15.2015.26
ID  - Zhang2015/10
ER  -