Method and system of hybrid power management
First Claim
1. A method of hybrid power management, comprising steps ofproviding a hybrid power output device being coupled to a load and comprising a fuel cell module and a secondary cell module;
- determining a plurality of threshold values, each representing one of a plurality of output power modes of the hybrid power output device respectively; and
monitoring a characteristic value output from the fuel cell module and comparing the characteristic value with the threshold values to determine one of the output power modes to supply power to the load.
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Abstract
A method of hybrid power management is provided in the present invention, comprising steps of: providing a hybrid power output device being coupled to a load and comprising a fuel cell module and a secondary cell module; determining a plurality of threshold values, each representing one of output power modes of the hybrid power output device respectively; and monitoring a characteristic value output from the fuel cell module and comparing the characteristic value with the threshold values to determine one of the output power modes to supply power to the load. Moreover, the present invention further provides a system of hybrid power management using the foregoing method to control switches to select from the output power modes such as supplying power from the fuel cell module only, from both the fuel cell module and the secondary battery, or cutting off power supply to the load according to the power state of the fuel cell module.
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Citations
12 Claims
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1. A method of hybrid power management, comprising steps of
providing a hybrid power output device being coupled to a load and comprising a fuel cell module and a secondary cell module; -
determining a plurality of threshold values, each representing one of a plurality of output power modes of the hybrid power output device respectively; and monitoring a characteristic value output from the fuel cell module and comparing the characteristic value with the threshold values to determine one of the output power modes to supply power to the load. - View Dependent Claims (2, 3, 4, 5)
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6. A system of hybrid power management, comprising:
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a hybrid power output device comprising a fuel cell module and a secondary cell module being electrically coupled to the fuel cell module through a first switch; a load being electrically coupled to the hybrid power output device through a second switch; a sensor unit being capable of monitoring a characteristic value output from the fuel cell module to generate a sensor signal; and a control unit being capable of determining a plurality of threshold values, each representing one of a plurality of output power modes of the hybrid power output device respectively and being capable of receiving the sensor signal and comparing the sensor signal with the threshold values to control the first switch or the second switch to determine one of the output power modes to supply power to the load. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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Specification