Regenerative load bank with a motor drive
First Claim
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1. A regenerative load bank (RLB) for a generator under test that produces a polyphase alternating current (AC) power output that is driven by a prime mover powered by a polyphase (AC) utility grid, comprising:
- a first power converter for converting the AC power output of the generator to direct current (DC) power;
a second power converter for converting DC power to AC power for coupling to the utility grid; and
a DC link for coupling the DC power output of the first power converter to the second power converter so that power generated by the generator is transferred to the utility grid.
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Abstract
An electronic power converter for a generator under test that emulates resistive and inductive-capacitive (LC) loads and regenerates energy from the generator back to a utility grid.
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Citations
21 Claims
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1. A regenerative load bank (RLB) for a generator under test that produces a polyphase alternating current (AC) power output that is driven by a prime mover powered by a polyphase (AC) utility grid, comprising:
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a first power converter for converting the AC power output of the generator to direct current (DC) power;
a second power converter for converting DC power to AC power for coupling to the utility grid; and
a DC link for coupling the DC power output of the first power converter to the second power converter so that power generated by the generator is transferred to the utility grid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A regenerative load bank (RLB) for a generator under test that produces a polyphase alternating current (AC) power output that is driven by a prime mover powered by a polyphase (AC) utility grid, comprising:
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an active rectifier comprising a four-quadrant switch-mode inverter for converting the AC power output of the generator to direct current (DC) power;
an inverter comprising a four-quadrant switch-mode inverter for converting DC power to AC power for coupling to the utility grid; and
a DC link for coupling the DC power output of the first power converter to the second power converter so that power generated by the generator is transferred to the utility grid. - View Dependent Claims (10, 11, 12, 13)
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14. A regenerative test stand system powered by a utility grid for testing a polyphase alternating current (AC) generator, comprising:
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a motor drive for selectively powering a prime mover;
a prime mover powered by the motor drive and coupled to the generator under test for driving the generator;
a first power converter for converting the AC power output of the generator to direct current (DC) power;
a second power converter for converting DC power to AC power for coupling to the utility grid; and
a DC link for coupling the DC power output of the first power converter to the second power converter so that power generated by the generator is transferred to the utility grid. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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Specification