Cogeneration system
First Claim
1. A cogeneration system having at least a generation unit-including a generator connectable to an AC power feed line between a commercial power network and an electrical load, an internal combustion engine for driving the generator, a battery and a power controller, the cogeneration system producing hot air or water through heat exchange with the engine to supply to a thermal load, comprising:
- a self-diagnosis process configured to;
determine whether it is a predetermined self-diagnosis time;
start the engine by an output of the battery when it is determined to be the predetermined self-diagnosis time; and
self-diagnose on an output voltage of the battery, a speed of the engine, an output of the generator, boosting of a converter of the power controller and cranking of the engine.
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Accused Products
Abstract
In a cogeneration system having at least with a generation unit comprising a generator connectable to an AC power feed line between a commercial power network and an electrical load, an internal combustion engine for driving the generator, and a battery, the cogeneration system producing hot air/water through exchange heat generated by the engine to supply to a thermal load, it is determined whether it is a predetermined self-diagnosis time, and when the result is affirmative, the generation unit is operated by an output of the battery and self-diagnoses is made on at least one of output voltage of the battery, a speed of the engine and an output of the generator, when it is determined to be the predetermined self-diagnosis time.
102 Citations
10 Claims
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1. A cogeneration system having at least a generation unit-including a generator connectable to an AC power feed line between a commercial power network and an electrical load, an internal combustion engine for driving the generator, a battery and a power controller, the cogeneration system producing hot air or water through heat exchange with the engine to supply to a thermal load, comprising:
a self-diagnosis process configured to; determine whether it is a predetermined self-diagnosis time; start the engine by an output of the battery when it is determined to be the predetermined self-diagnosis time; and self-diagnose on an output voltage of the battery, a speed of the engine, an output of the generator, boosting of a converter of the power controller and cranking of the engine. - View Dependent Claims (2, 3, 4, 5)
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6. A method of self-diagnosing a cogeneration system having at least a generation unit including a generator connectable to an AC power feed line between a commercial power network and an electrical load, an internal combustion engine for driving the generator, a battery and a power controller, the cogeneration system producing hot medium through heat exchange with the engine to supply to a thermal load, comprising the steps of:
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determining whether it is a predetermined self-diagnosis time; and starting the engine by an output of the battery when it is determined to be the predetermined self-diagnosis time; and self-diagnosing on an output voltage of the battery, a speed of the engine, an output of the generator, boosting of a converter of the power controller and cranking of the engine. - View Dependent Claims (7, 8, 9, 10)
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Specification