【摘要】 通过引入混杂系统理论,在分析系统运行过程的基础上,建立了共直流母线交流传动系统混杂Petri网模型和电机功率模型。在此基础上提出了一种基于配对理论的节能控制算法,即在电机状态可调控时段,通过改变随机运行状态,使耗能状态激发与回馈状态激发模糊配对的电机状态调控算法。采用该方法的直流母线功率仿真结果表明,该方法能有效地调整控制电机状态,使处在耗能状态电机最大限度地吸收制动状态电机再生的电能,减小了直流母线功率波动,提高了系统性能。更多还原

【Abstract】 This paper introduces the hybrid system theory and establishes a common DC bus AC drive system hybrid Petri nets model and a motor power model based on the analysis of the system operation process.On this basis an energy saving control algorithm based on matching theory is proposed,namely the motor state adjusting algorithm which gets fuzzy pair of energy consumption state excitation and feedback state excitation through changing the random operation state in the controllable period of motor state.The results of simulation on DC bus power adopting this method show that it can effectively adjust and control the motor state,make the motor in energy consumption state absorb the electrical energy regenerated by motor in braking mode to a large extent,thus can reduce the DC bus power fluctuation and improve the system performance.This work is supported by National Natural Science Foundation of China(No.51007056).更多还原