Island network and method for operation of an island network
First Claim
1. An isolated electrical network with at least one first energy producer that uses a regenerative energy source, wherein the energy producer is preferably a wind energy system with a generator, wherein a second generator that can be coupled to an internal combustion engine is provided, characterized in that a) the wind energy system is controllable in regard to its rotational speed and blade adjustment;
- b) the wind energy system can be controlled such that it always produces only the required electric power, the required power being composed of the consumption of electric power in the network and the power needed to charge an interim electricity storage unit; and
c) when the power produced by the wind energy system falls below power R, network power is initially not provided by the internal combustion engine, but instead interim electricity storage units are called upon to release energy to the network.
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Abstract
The invention relates to an island network with at least one energy generator, using regenerative energy sources, whereby the energy generator is preferably a wind energy plant with a first synchronous generator, a DC link, at least one first power rectifier and a power inverter, a second synchronous generator and an internal combustion engine which may be coupled with the second synchronous generator. A fully controllable wind energy unit (10) and an electromagnetic coupling (34) between the second synchronous generator (32) and the internal combustion engine (30) are provided in order to establish an island network in which the internal combustion engine can be switched off completely, so long as the wind energy unit is generating enough power for all connected users with an efficiency which is as high as possible.
175 Citations
20 Claims
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1. An isolated electrical network with at least one first energy producer that uses a regenerative energy source, wherein the energy producer is preferably a wind energy system with a generator, wherein a second generator that can be coupled to an internal combustion engine is provided, characterized in that
a) the wind energy system is controllable in regard to its rotational speed and blade adjustment; -
b) the wind energy system can be controlled such that it always produces only the required electric power, the required power being composed of the consumption of electric power in the network and the power needed to charge an interim electricity storage unit; and
c) when the power produced by the wind energy system falls below power R, network power is initially not provided by the internal combustion engine, but instead interim electricity storage units are called upon to release energy to the network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 18, 19)
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16. An isolated electrical network comprising:
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at least one first primary energy producer for producing electrical energy for an isolated electrical network;
a synchronous generator that has the function of a pulse-former, wherein the synchronous generator can operate in motor mode and the energy required operation in motor mode is provided by the primary energy producer. - View Dependent Claims (17)
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20. An electrical supply network comprising:
a synchronous generator as a pulse-former for a line-commutated dc-ac converter for feeding an alternating current into the electricity supply network, wherein the generator operates in motor mode and the driving of the generator to operate in motor mode is accomplished by a flywheel or by providing electrical energy from a regenerative energy producer.
Specification