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A novel model-free predictive current control (MFPCC) approach for three-phase AC/DC converters is proposed, which only measures the input currents and calculates their differences under different switching states. Existing model-based predictive current control (MBPCC) methods are based on converter models and thus require the knowledge of input current, input and terminal voltages, resistance, and...
A simple digital-controlled AC/DC converter with power factor correction for universal input applications is presented. The presented method provides the following features: (1). easy for digital implementation, (2). universal input applications, (3). high power factor, (4). fast dynamic response, (5). no need of circuit parameter in prior, (6). no need of input voltage sensor. The range of input...
The objective of this paper is to design and implement an AC/DC converter which meets the green power specification under standby condition. The design of PFC-OFF control and auxiliary circuit which will significantly reduce the standby power to meet the energy code under standby condition will be presented. Moreover, it will be shown that these circuits don't need any current sensor and hysteresis...
The objective of this paper is to present a novel bi-directional three-phase rectifier without using DC-link current sensor. Therefore, the off-shelf DC/AC stage can be used to realize such bi-directional rectifier with only slight modification to the control software. This feature provides the possibility of building a back-to-back AC/DC/AC system using two identical hardware modules. An experimental...
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