access icon free Methods of source current reference generation for predictive control in a direct matrix converter

© The Institution of Engineering and Technology
Received 16/07/2012, Accepted 10/10/2012, Published

Two control strategies that allow the control of source and load currents for direct matrix converters are presented in this study. Both methods use the switching state of the converter in the subsequent sampling time, based on an optimisation algorithm given by a simple cost function and the discrete system model. The control goals include regulation of load currents according to an arbitrary reference and good tracking of the source currents to their references. In the first method, the input current reference is given as a function of the instantaneous active power. In the second case, the source current reference is given as a function of the output current reference and system parameters. Experimental results with an experimental prototype support the theoretical approach.

Inspec keywords: switching convertors; matrix convertors; predictive control; optimisation; electric current control

Other keywords: input current reference; switching state converter; instantaneous active power function; source current control; load current regulation; optimisation algorithm; source current reference generation method; discrete system model; predictive control strategy; direct matrix converter; cost function; load current control; source current reference

Subjects: Current control; Optimisation techniques; Optimal control; Power convertors and power supplies to apparatus; Optimisation techniques; Control of electric power systems

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