HYBRID POWER PLANT FOR IMPROVED EFFICIENCY AND DYNAMIC PERFORMANCE
First Claim
1. A method of reducing variations in a power load on an AC generator in a power plant, comprising:
- routing power from an active power compensation system to an AC load, through a DC bus coupled to the active power compensation system and through a DC-to-AC converter coupled to the DC bus and to the active power compensation system, during a time when a power output of the AC generator coupled to the AC load is lower than a power demand of the AC load.
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Accused Products
Abstract
A hybrid power plant is characterized by a substantially constant load on generators regardless of momentary swings in power load. Short changes in power load are accommodated by DC components such as capacitors, batteries, resistors, or a combination thereof. Resistors are used to consume power when loads in the power plant are generating excess power. Capacitors are used to store and deliver power when the loads in the power plant demand additional power. Reducing rapid changes in power load as seen by the generators allows the generators to operate at higher efficiencies and with reduced emissions. Additionally, power plants employing combinations of generators, loads, and energy storage devices have increased dynamic performance.
7 Citations
19 Claims
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1. A method of reducing variations in a power load on an AC generator in a power plant, comprising:
routing power from an active power compensation system to an AC load, through a DC bus coupled to the active power compensation system and through a DC-to-AC converter coupled to the DC bus and to the active power compensation system, during a time when a power output of the AC generator coupled to the AC load is lower than a power demand of the AC load. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A power plant, comprising:
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an AC generator coupled to an AC bus; an AC-to-DC converter coupled to the AC bus and a DC bus; a switch coupled to the DC bus; an AC load coupled to the AC bus; and means for reducing variation in the power load of the power plant, the power load variation reducing means coupled to the AC-to-DC converter and to the DC bus, in which the power load variation reducing means is configured to deliver power to the AC load through the AC bus, the AC-to-DC converter, and the DC bus, when a power output of the AC generator is lower than a power demand of the AC load. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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Specification