【摘要】 为了提高无极灯逆变变换器工作的稳定性,本文对其进行建模,并进行参数影响分析。首先根据自驱动型无极灯逆变变换器工作的开关状态,对每个开关状态进行分析;然后分别建立其状态空间表达式,利用状态空间平均法建立电源变换器电路的数学模型,对模型进行平均化、直流、交流小信号处理;最后在频域内对模型参数仿真分析,得出器件参数对电源系统稳定性和工作状态的影响大小。该理论分析为后期参数优化提供依据,逆变变换器器件的最优化选型会提高无极灯逆变变换器的工作稳定性,减小功率器件的能量损耗。更多还原

【Abstract】 In order to improve the stability of the power inverter converter of the lamp,this paper has built a model and analyzed the parameter. Firstly,analyze each switch state based on self-driven lamp inverter converter. Then establish each state space expression and build the model of the power inverter converter,and process the average and the DC and AC small signal. Finally,simulate and analyze the model in the frequency domain to get the device parameters’ effect to the power system stability and working conditions. This theoretical analysis provide a basis for post-parameter optimization,the optimization selection of inverter converter device will increase the stability of the lamp inverter converter and reduce energy loss of power devices.更多还原