POWER CONVERSION DEVICE, POWER GENERATION SYSTEM AND CHARGE AND DISCHARGE CONTROL METHOD
First Claim
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1. A power conversion device comprising:
- a DC/DC convertor that performs DC/DC conversion on an output voltage of a direct-current power supply; and
a DC/AC invertor that performs DC/AC conversion on an output voltage of the DC/DC convertor,wherein an output power of the DC/AC invertor is controlled such that charge and discharge of a storage device connected to a connection point between an output end of the DC/DC convertor and an input end of the DC/AC invertor are controlled.
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Abstract
A power conversion device includes: a DC/DC convertor (5) that performs DC/DC conversion on an output voltage of a direct-current power supply (for example, a solar battery module (1)); and a DC/AC invertor (6) that performs DC/AC conversion on an output voltage of the DC/DC convertor (5). The output power of the DC/AC invertor (6) is controlled such that the charge and discharge of a storage device (for example, a storage battery (3)) connected to a connection point between an output end of the DC/DC convertor (5) and an input end of the DC/AC invertor (6) are controlled.
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Citations
8 Claims
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1. A power conversion device comprising:
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a DC/DC convertor that performs DC/DC conversion on an output voltage of a direct-current power supply; and a DC/AC invertor that performs DC/AC conversion on an output voltage of the DC/DC convertor, wherein an output power of the DC/AC invertor is controlled such that charge and discharge of a storage device connected to a connection point between an output end of the DC/DC convertor and an input end of the DC/AC invertor are controlled. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of controlling charge and discharge of a storage device, a power conversion device including a DC/DC convertor that performs DC/DC conversion on an output voltage of a direct-current power supply and a DC/AC invertor that performs DC/AC conversion on an output voltage of the DC/DC convertor, the storage device being connected to a connection point between an output end of the DC/DC convertor of and an input end of the DC/AC invertor of the power conversion device,
wherein an output power of the DC/AC invertor is controlled such that the charge and the discharge of the storage device are controlled.
Specification