Air 1 Air flow 1 Air-cooled condensers Cluster analysis 1 Cooling systems 1 Energy conservation 1 Fan group 1 Natural wind 1 Natural wind speed model 1 Numerical models 1 Partition strategy 1 Speed regulation 1 Stochastic systems 1 Transient numerical simulation 1 Wind 1 Wind disturbance 1 Wind speed models 1 air-cooled condenser 1 cluster analysis 1 fan group 1 natural wind speed model 1 partition strategy 1 speed regulation 1 transient numerical simulation 1