Optimization of Loop-controlled Ventilation Regulation Strategy Based on Harmony Search
The fixed frequency operation of fans in the loop-controlled ventilation system of subway stations leads to the inability of fans to follow the change of PM2.5 concentration on the station platform and change the frequency,resulting in energy waste.Ac-cording to the operation status of the loop-controlled ventilation system,it can be divided into the three modes of sending only without exhausting,not sending only exhausting,sending and exhausting.Considering that the loop-controlled ventilation system should a-dapt to the influence of multiple disturbances,the least squares system is selected to identify the first-order inertia time delay model for describing the transfer function of dynamic response in variables.The active disturbance rejection controller is used to establish the control model of the loop-controlled ventilation system,and the harmony search algorithm is used to optimize the PM2.5 concentra-tion setting value of the loop-controlled ventilation system.The results show that after the optimization,the average PM2.5 concen-trations on the platform are reduced by 7％,8％and 10％in the sending-only mode,the non-sending-only mode and the sending-and-exhausting mode,respectively,and the energy consumption of the fan is reduced by 19％,19％and 30％,respectively.
station air qualityloop-controlled ventilation systemthe first-order inertia time delay modelharmony search algo-rithmactive disturbance rejection controller
万方数据
维普
