Multiple service load solid state switching for controlled cogeneration system
First Claim
1. A method for switching a plurality of isolated circuits between a generator and an electrical source, the method comprising the steps of:
- (a) sensing a load signal of each of the isolated circuits and emitting the sensed load signals to a computer;
(b) sensing an available generator power signal of the generator and emitting the sensed available generator power signal to the computer;
(c) sensing an available source power signal of the electrical available source and emitting the sensed available power signal to the computer;
(d) computing as a function of the sensed load signals, the sensed available generator power signal, and the sensed available source power signal whether each of a plurality of solid state load switches should be individually switched to connect each said isolated circuit to the generator or the electrical source; and
(e) emitting a switching signal from the computer to each of the solid state load switches and switching each of the solid state load switches without paralleling when the electrical source is at zero-voltage crossover to electrically connect each of the corresponding isolated circuits to either the generator or the electrical source.
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Accused Products
Abstract
An electrical generation system and method for switching a plurality of isolated circuits between a generator and an electrical source. A current signal of each isolated circuit is sensed and the current signal is emitted to a computer. A generator output signal is sensed and emitted to the computer. An available power signal of the electrical source is sensed and also emitted to the computer. The computer or a microprocessor computes, as a function of the sensed load signals, a sensed generator output signal, and the sensed available power signal, whether each solid state load switch should be individually switched to connect each corresponding isolated circuit to either the generator or the electrical source. The computer or microprocessor then emits a switching signal to each solid state load switch for electrically connecting each corresponding isolated circuit to either the generator or the electrical source.
98 Citations
12 Claims
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1. A method for switching a plurality of isolated circuits between a generator and an electrical source, the method comprising the steps of:
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(a) sensing a load signal of each of the isolated circuits and emitting the sensed load signals to a computer; (b) sensing an available generator power signal of the generator and emitting the sensed available generator power signal to the computer; (c) sensing an available source power signal of the electrical available source and emitting the sensed available power signal to the computer; (d) computing as a function of the sensed load signals, the sensed available generator power signal, and the sensed available source power signal whether each of a plurality of solid state load switches should be individually switched to connect each said isolated circuit to the generator or the electrical source; and (e) emitting a switching signal from the computer to each of the solid state load switches and switching each of the solid state load switches without paralleling when the electrical source is at zero-voltage crossover to electrically connect each of the corresponding isolated circuits to either the generator or the electrical source. - View Dependent Claims (2, 3, 4, 5, 6)
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7. In an electrical generation system having a generator and an electrical source, and a plurality of isolated circuits each electrically fed from one of said generator and said electrical source, the improvement comprising:
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a plurality of solid state load switches each forming an electrical connection between a corresponding said isolated circuit and one of a generator output of said generator and said electrical source; sensing means for determining a load value of each of the isolated circuits; control means for individually switching each said solid state load switch without paralleling when said electrical source is at zero-voltage crossover so that each said isolated circuit is independently switched between said generator and said electrical source as a function of said determined load values, available power from said generator output, and a presence of power from said electrical source. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification