An improved particle swarm optimization based maximum power point tracking strategy with variable sampling time

作者：Mirhassani Seyed Mohsen^*; Golroodbari Sayedeh Zahra Mirbagheri; Goiroodbari Sayedeh Mina Mirbagheri; Mekhilef Saad

来源：International Journal of Electrical Power & Energy Systems, 2015, 64: 761-770.

DOI：10.1016/j.ijepes.2014.07.074

• Maximum power point tracking
• Particle swarm optimization
• Partially shaded condition
• Variable sampling time

This paper presents an improved maximum power point tracking (MPPT) strategy for photovoltaic (PV) systems based on particle swarm optimization (PSO). The capability of the PSO algorithm to cope with partially shaded conditions (PSCs) is the primary motivation of this research. Unlike conventional PSO-based MPPT systems, a variable sampling time strategy (VSTS) based on the investigation of the dynamic behavior of converter current is deployed to increase system tracking time. The performance of the proposed system is evaluated using MATLAB simulation and experimentation, in which a digital signal controller is used to implement the proposed algorithm on a real boost converter connected to a PV simulator. The main advantage of the proposed algorithm is fast and accurate performance under different conditions, including PSCs.

• 出版日期2015-1