Condition 5 Partial shading 5 Partial shading condition 5 Particle swarm optimization (PSO) 5 Maximum power point trackers 4 MPPT 3 Photovoltaic arrays 3 Photovoltaic effects 3 Photovoltaic systems 3 Solar cells 3 Solar power generation 3 partial shading condition 3 photovoltaic system 3 Climate change 2 Cuckoo search algorithms 2 Electric control equipment 2 Global optimization 2 Hardware in loop 2 Heuristics algorithm 2 Hybrid CSA-PID 2 Hybrid cuckoo search algorithm-PID 2 PID controllers 2 Photovoltaics 2 Physics 2 Proportional control systems 2 Real time control 2 Research & information: general 2 Solar energy 2 Solar panels 2 Three term control systems 2