Low Output Resistance-Feature of Switch-Linearity Hybrid Converter and Its Effect on the System's Performance Optimization.

To improve the synthetic performance of converters based on the present power electronics, this paper revealed that combining a power electronics switch circuit with a linear circuit can create a Switch-Linearity Hybrid Power Converter (SLH), whose operation scheme was briefly described. Two kinds of topologies of parallel connection and serial connection were listed as well as their features. The effect of SLH' low output resistance feature on the static and dynamic performances was explained. Comparing the SLH to a typical PWM converter plus LC filter unit, it presented the test data and the typical waveforms from the supply system and drive system in different load conditions. The results show SLH has good synthetic performances such as both high efficiency and optimal waveforms, adaptability to multi-kinds of loads and resistivity against load disturbances. [ABSTRACT FROM AUTHOR]