Power supply system control method for the same, and recording medium
First Claim
1. A power supply system comprising:
- at least one main power supply unit that converts an input power into an output power and supplies the output power to a load;
an auxiliary power supply unit that supplies an output power to the load, from a power storage unit capable of functioning as a power supply source;
a power measurement unit, that is connected between output sides of the main power supply unit and the auxiliary power supply unit and the load, that measures an output power output by the main power supply unit and the auxiliary power supply unit; and
a power supply control unitthat calculates an optimal output power of the main power supply unit that maximizes a power conversion efficiency of the main power supply unit in a given output adjustment range for the main power supply unit in accordance with the output power measured by the power measurement unit,calculates an optimal output power or charge power of the auxiliary power supply unit based on the given output adjustment range,controls the main power supply unit based on the calculated optimal output power of the main power supply unit, andcontrols the auxiliary power supply unit based on the calculated optimal output power or charge power of the auxiliary power supply unit.
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Accused Products
Abstract
Is provided a power supply system optimizing a power conversion efficiency of its entire system, including at least one main power supply unit converting an input power into an output power supplied to a load; an auxiliary power supply unit including a power storage unit supplying an output power by the power storage unit to the load; a power measurement unit for measuring an output power from the main and auxiliary power supply units; and a power supply control unit for calculating an optimal output power in the main power supply unit maximizing its power conversion efficiency according to the output power measured by the power measurement unit and an optimal output power or charge power in the auxiliary power supply unit, controlling the main power supply unit based on the optimal output power, and controlling the auxiliary power supply unit based on the optimal output power or charge power.
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Citations
10 Claims
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1. A power supply system comprising:
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at least one main power supply unit that converts an input power into an output power and supplies the output power to a load; an auxiliary power supply unit that supplies an output power to the load, from a power storage unit capable of functioning as a power supply source; a power measurement unit, that is connected between output sides of the main power supply unit and the auxiliary power supply unit and the load, that measures an output power output by the main power supply unit and the auxiliary power supply unit; and a power supply control unit that calculates an optimal output power of the main power supply unit that maximizes a power conversion efficiency of the main power supply unit in a given output adjustment range for the main power supply unit in accordance with the output power measured by the power measurement unit, calculates an optimal output power or charge power of the auxiliary power supply unit based on the given output adjustment range, controls the main power supply unit based on the calculated optimal output power of the main power supply unit, and controls the auxiliary power supply unit based on the calculated optimal output power or charge power of the auxiliary power supply unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A control method for a power supply system comprising:
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measuring an output power output from at least one main power supply unit that converts an input power into an output power and supplies the output power to a load, and an output power output from an auxiliary power supply unit including a power storage unit capable of functioning as a power supply source; calculating an optimal output power of the main power supply unit maximizing a power conversion efficiency in the main power supply unit in a given output adjustment range for the main power supply unit in accordance with the measured output power; calculating an optimal output power or charge power of the auxiliary power supply unit based on the given output adjustment range; controlling the main power supply unit based on the calculated optimal output power of the main power supply unit; and controlling the auxiliary power supply unit based on the calculated optimal output power or charge power of the auxiliary power supply unit.
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10. A non-transitory computer-readable recording medium recorded with a control program for a power supply system causing a computer to execute:
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a processing that measures an output power output from at least one main power supply unit that converts an input power into an output power and supplies the output power to a load, and an output power output from an auxiliary power supply unit including a power storage unit capable of functioning as a power supply source; a processing that calculates an optimal output power of the main power supply unit maximizing a power conversion efficiency in the main power supply unit in a given output adjustment range for the main power supply unit in accordance with the measured output power; a processing that calculates an optimal output power or charge power of the auxiliary power supply unit based on the given output adjustment range; a processing that controls the main power supply unit based on the calculated optimal output power of the main power supply unit; and a processing that controls the auxiliary power supply unit based on the calculated optimal output power or charge power of the auxiliary power supply unit.
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Specification