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US 2012/0236607 A1Published application
Unified Control of Single and Three-Phase Power Converters
AssigneeThe Regents of the University of California
InventorsLihua Li, Keyue Smedley, Taotao Jin
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Abstract
Provided herein are unified control methods and implementations for controlling single and three-phase power converters. In an exemplary embodiment, a unified controller is provided that can be used to control a three-phase three-wire Voltage Source Inverter (VSI), a three-phase four-wire VSI, a three-phase grid-connected power converter for current shaping, and a single-phase full bridge VSI.
Claims24
A controller for a power converter, comprising:
- a feedback signal processor configured to generate a plurality of intermediate signals based on a plurality of feedback signals from the power converter;
- a region selector configured to detect different regions of each cycle of the power converter, and output region information indicating a current region of the power converter;
- a control signal selector configured to generate a plurality of control signals, wherein, for each control signal, the control signal selector selects at least one of the intermediate signals according to the region information from the region selector;
- a control core configured to receive the plurality of control signals and generate a plurality of duty-ratio signals based on the received control signals;
- and
- a signal distributor configured to distribute the plurality of duty-ratio signals to switches in the power converter according to the region information from the region selector.
3 more elements
A controller for a power converter, comprising:
- a feedback signal processor configured to generate at least one intermediate signal based on at least one feedback signal from the power converter;
- a control core configured to receive the intermediate signal and generate at least one duty-ratio signal based on the received intermediate signal;
- a region selector configured to detect different regions of each cycle of the power converter, and output region information indicating a current region of the power converter;
- and
- a signal distributor configured to distribute the at least one duty-ratio signal to switches in the power converter according to the region information from the region selector.
2 more elements
Dependencies are inferred from the claim text.