POWER SUPPLY SYSTEM
First Claim
1. A power supply system mounted on a moving body, for supplying power to a first drive device and a second drive device functioning as a drive source of the moving body, the power supply system comprising:
- a power conversion device which converts an output characteristic of supply power from a power supply device;
a fuel cell as a power supply device, the fuel cell being capable of supplying power generated through electrochemical reaction between oxygen-containing oxidation gas and hydrogen-containing fuel gas to the first drive device without using the power conversion device;
a storage battery device as a power supply device, connected to the fuel cell via the power conversion device, the storage battery device being capable of storing electric power and of supplying the stored power to the second drive device without using the power conversion device; and
a power controller which controls power to be supplied from the fuel cell and the storage battery device to the first drive device and the second drive device in response to an output request from the moving body, whereinwhen the output request from the moving body is a normal output request, the power controller controls power supply such that power is supplied to the first drive device and the second drive device by the fuel cell and the storage battery device respectively, andwhen power to be supplied to the first drive device as in the output request from the moving body is greater than an amount of power that can be generated by the fuel cell, the power controller permits power supply from the storage battery device to the first drive device via the power conversion device.
1 Assignment
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Accused Products
Abstract
A power supply system is provided for supplying power to a first drive device and a second drive device functioning as a drive source of a moving body. A fuel cell and a storage battery device are connected via a power conversion device. The fuel cell can supply power to the first drive device and the storage battery device can supply power to the second drive device, respectively, without using the power conversion device. When an output request from the moving body is a normal output request, power is supplied to each of the drive devices by the fuel cell and the storage battery device, respectively. Only when power to be supplied to the first drive device as in the output request from the moving body is greater than an amount of power that can be generated by the fuel cell, that power supply from the storage battery device to the first drive device via the power conversion device is permitted. Thus, in a power supply device that is formed of a plurality of power supply devices connected via a power conversion device, it is possible to avoid, to the extent possible, decrease of efficiency of power supply to a drive device of a moving body.
37 Citations
5 Claims
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1. A power supply system mounted on a moving body, for supplying power to a first drive device and a second drive device functioning as a drive source of the moving body, the power supply system comprising:
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a power conversion device which converts an output characteristic of supply power from a power supply device; a fuel cell as a power supply device, the fuel cell being capable of supplying power generated through electrochemical reaction between oxygen-containing oxidation gas and hydrogen-containing fuel gas to the first drive device without using the power conversion device; a storage battery device as a power supply device, connected to the fuel cell via the power conversion device, the storage battery device being capable of storing electric power and of supplying the stored power to the second drive device without using the power conversion device; and a power controller which controls power to be supplied from the fuel cell and the storage battery device to the first drive device and the second drive device in response to an output request from the moving body, wherein when the output request from the moving body is a normal output request, the power controller controls power supply such that power is supplied to the first drive device and the second drive device by the fuel cell and the storage battery device respectively, and when power to be supplied to the first drive device as in the output request from the moving body is greater than an amount of power that can be generated by the fuel cell, the power controller permits power supply from the storage battery device to the first drive device via the power conversion device. - View Dependent Claims (2, 3, 4, 5)
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Specification