Control device for power converter, control program and power conversion device
AssigneeKabushiki Kaisha Toshiba
InventorsKoji Maki, Hiroshi Mochikawa, Shingo Yanagimoto
Life of this patent
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Abstract
A control device includes a searching unit increasing or decreasing, at a predetermined step width, an operation voltage or an operation current of a power supply connected to a power converter to search a maximum power point of the power supply, a consecution time determining unit determining whether or not the searching unit has consecutively increased or decreased the operation voltage of the power supply or the operation current thereof, and a step width increasing unit increasing the step width upon determination by the consecution time determining unit that the increase or the decrease has been consecutively executed by a predetermined number of times.
Claims13
A control device for a power converter, the control device comprising:
- a searching unit increasing or decreasing, at a predetermined step width, an operation voltage or an operation current of a power supply connected to the power converter to search a maximum power point of the power supply;
- a consecution time determining unit determining whether or not the searching unit has consecutively increased or decreased the operation voltage of the power supply or the operation current thereof;
- and
- a step width increasing unit increasing the step width upon determination by the consecution time determining unit that the increase or the decrease has been consecutively executed by a predetermined number of times.
A power-converter control program causing a computer to execute:
- a searching process of increasing or decreasing, at a predetermined step width, an operation voltage or an operation current of a solar battery connected to a power converter to search a maximum power point of the solar battery;
- a consecution time determining process of determining whether or not, through the searching process, the operation voltage of the solar battery or the operation current thereof has been consecutively increased or decreased by a predetermined number of times;
- and
- a step width increasing process of increasing the step width upon determination through the consecution time determining process that the increase or the decrease has been consecutively executed by a predetermined number of times.
Dependencies are inferred from the claim text.