System and method for generator phase signal monitoring and control
First Claim
1. A control device for a generator, said generator comprising two or more phase windings associated with one or more stators, said two or more phase windings operative to generate two or more alternating phase signals, said control device comprising:
- a processor, including a programming code operable on the processor, coupled with the two or more phase windings and a generator output power controller;
wherein said processor is configured to;
(a) measure the two or more alternating phase signals, via two or more lines;
(b) determine a first and second average values of two of the two or more alternating phase signals; and
(c) apply a control signal to the generator output power controller to at least one of limit and cease a total electrical output current of the generator, via a control line, when the first average value differs from the second average value by a predetermined value.
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Abstract
A vehicle electrical system comprises a generator and a control device coupled with the generator and operable to protect the generator from catastrophic failure while providing the electrical load in the electrical system with sufficient electrical power. The control device determines a loss of symmetry between two alternating phase signals generated by a first and second phase windings of a single or multiple stator generator. In particular, the control device determines a first and second average values of two of the two or more alternating phase signals and either limits or ceases the total electrical output current of the generator, via a generator output power controller, when the first average value differs from the second average value by a predetermined value. The control device may alternatively be configured to generate an error signal without varying the generator'"'"'s total electrical output current even in the event of a malfunction.
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Citations
19 Claims
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1. A control device for a generator, said generator comprising two or more phase windings associated with one or more stators, said two or more phase windings operative to generate two or more alternating phase signals, said control device comprising:
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a processor, including a programming code operable on the processor, coupled with the two or more phase windings and a generator output power controller; wherein said processor is configured to; (a) measure the two or more alternating phase signals, via two or more lines; (b) determine a first and second average values of two of the two or more alternating phase signals; and (c) apply a control signal to the generator output power controller to at least one of limit and cease a total electrical output current of the generator, via a control line, when the first average value differs from the second average value by a predetermined value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for controlling a generator, said generator comprising two or more phase windings associated with one or more stators, said two or more phase windings operative to generate two or more alternating phase signals, said method comprising:
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(a) measuring the two or more alternating phase signals, via two or more lines; (b) determining a first and second average values of two of the two or more phase signals; and (c) applying a control signal to a generator output power controller to at least one of limit and cease a total electrical output current of the generator, via a control line, when the first average value differs from the second average value by a predetermined value. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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Specification