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Model predictive control for matrix converter operating in current control mode with load current estimation

Patent ·
OSTI ID:1892778
A matrix converter system operating in current control mode is provided. The matrix converter includes a switching matrix coupled between a low voltage side and a high voltage side, wherein the matrix converter is coupled at its low voltage side to a generator for receiving an input power including an input current and transforming the input power into an output power at its high voltage side, wherein a load is coupled to the high voltage side. The control system includes a load observer and a model predictive controller (MPC). The load observer is configured to estimate a load current that flows to the load from the high voltage side of the matrix converter as a function of a switching state of the switching matrix, an output voltage output at the high voltage side of the matrix converter, and the input current. The MPC is configured to select the switching state of the switching matrix to meet one or more control objectives defined by minimization of a multi-objective function that tracks the output voltage and the input current using the estimated load current.
Research Organization:
Hamilton Sundstrand Corp., Charlotte, NC (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AR0000891
Assignee:
Hamilton Sundstrand Corporation (Charlotte, NC)
Patent Number(s):
11,290,023
Application Number:
16/381,947
OSTI ID:
1892778
Country of Publication:
United States
Language:
English

References (3)

Predictive control with active damping in a Direct Matrix Converter conference September 2009
Universal optimal model predictive control of multi-phase AC converters conference June 2016
Current control and reactive power minimization of a direct matrix converter induction motor drive with Modulated Model Predictive Control conference October 2015

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