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The current is limited within a certain range with poor waveforms by fast response of hardware current limiting. The current limiting with software can produce good waveforms. The emphasis is the switch between the voltage loop and the current. In order to switch smoothly without shock waves, the traditional method is used to switch into the current loop, when current exceeds the upper limit point...
Combined three-phase inverter is constituted of three signal H-bridge inverters. This topology has several advantages and specially suits for high power application. However, when applying combined configuration into high power application, many new features are found. These new features affect the performance of inverter system in many ways. On the viewpoint of system, these new features must be...
For the medium or low voltage high-current applications, combined three-phase inverter topology is presented and mathematical model in dq coordinates is built. Several current-limiting methods are commonly used. They have their own shortcomings. Thus, a new strategy of hardware blockage with instantaneous currents, combined by software current limit with the average current is presented. Using fast...
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