帮忙下两篇paper， 先谢了
时间：12-12
整理：3721RD
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1
http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=4126814&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D4126814
Input-Current Distortion of CCM Boost PFC Converters Operated in DCM
hen power-factor correction (PFC) converters designed for operation in continuous-conduction mode (CCM) at full power are operated at reduced load, operation in discontinuous-conduction mode (DCM) occurs in a zone that is close to the crossover of the line voltage. This zone will gradually expand with decreasing load to finally encompass the entire line cycle. Whereas, in CCM, the parasitic capacitances of the switches only cause switching losses, in DCM, they are a source of converter instability, resulting in significant input-current distortion. In this paper, this source of input-current distortion is analyzed, and a solution is proposed. Experimental results are obtained using a digitally controlled boost PFC converter, which is designed to operate in CCM for 1 kW
2. http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=1036808
On evaluating the current distortion of the single-phase switch-mode rectifiers with current slope maps
This paper presents a simple way to evaluate the distortion level of the input current for single-phase switch-mode rectifiers (SMRs). Based on the possible conducting paths of various topologies of SMRs, slopes of the input and command currents are defined to form a slope map. By comparing the defined current slopes, the causes of current distortion are examined. Distorted waveforms of the input currents under hysteresis control are reviewed and classified into three types. Design criteria for the circuit parameters are also studied to reduce the current distortion level. Simulations and experiments are performed and the results show strong conformity to the theoretical analysis.
http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=4126814&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D4126814
Input-Current Distortion of CCM Boost PFC Converters Operated in DCM
hen power-factor correction (PFC) converters designed for operation in continuous-conduction mode (CCM) at full power are operated at reduced load, operation in discontinuous-conduction mode (DCM) occurs in a zone that is close to the crossover of the line voltage. This zone will gradually expand with decreasing load to finally encompass the entire line cycle. Whereas, in CCM, the parasitic capacitances of the switches only cause switching losses, in DCM, they are a source of converter instability, resulting in significant input-current distortion. In this paper, this source of input-current distortion is analyzed, and a solution is proposed. Experimental results are obtained using a digitally controlled boost PFC converter, which is designed to operate in CCM for 1 kW
2. http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=1036808
On evaluating the current distortion of the single-phase switch-mode rectifiers with current slope maps
This paper presents a simple way to evaluate the distortion level of the input current for single-phase switch-mode rectifiers (SMRs). Based on the possible conducting paths of various topologies of SMRs, slopes of the input and command currents are defined to form a slope map. By comparing the defined current slopes, the causes of current distortion are examined. Distorted waveforms of the input currents under hysteresis control are reviewed and classified into three types. Design criteria for the circuit parameters are also studied to reduce the current distortion level. Simulations and experiments are performed and the results show strong conformity to the theoretical analysis.
Thanks you!