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Passive three-phase rectifier circuits are very popular for ac-dc power conversion. However, they do not have the capability to reverse the power flow, which is demanded by some recent potential smart-grid applications, such as vehicle-to-grid (V2G) power transfer. As an alternative, this paper analyzes the behavior of three-phase ac-dc matrix converters. Among the modulation strategies that minimize...
The control scheme of a speed-sensorless induction motor drive fed by a matrix converter is presented. The proposed scheme allows the motor to exploit the maximum torque capability at any speed, shows a moderate dependence on the motor parameters, and a fast torque response, even in the field- weakening speed range. The behaviour of the matrix converter is assessed by means of experimental results.
Matrix converter has several attractive features and some companies have shown a particular interest in its commercial exploitation. These paper gives an introduction to its technology and theory. After a brief historical review, the basic hardware solution for the development of matrix conveners are presented. An important part of the paper is dedicated to the discussion of the modulation and control...
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