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Separate network and method for operating a separate network

A network and power island technology, applied in the direction of AC network load balancing, single-network parallel feeding arrangement, sustainable construction, etc., can solve the problems of mechanical damage of the main power generator, excessive power consumption, etc.

Inactive Publication Date: 2005-07-13
阿洛伊斯沃本
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Another problem with existing island networks is that so-called dumploads must be provided, which consume excess power generated by the main power generator, so that the main power generator is not idle when the load is switched off operation, which in turn can cause mechanical damage to the main power generator due to too high rpm (revolutions per minute)
This is more of a problem in the case of wind farms acting as primary power generators

Method used

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  • Separate network and method for operating a separate network
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  • Separate network and method for operating a separate network

Examples

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Embodiment Construction

[0023] figure 1 shows a wind power plant with a down converter, which consists of a rectifier 20 and an inverter 24, wherein the wind power plant is connected to a direct voltage intermediate circuit 28 by means of the rectifier 20, the inverter 24 connected to the output of the DC voltage intermediate circuit 28.

[0024] Parallel to the output of the inverter 24 , a second synchronous generator 32 is connected, which in turn is connected by an electromagnetic coupling 34 to an internal combustion engine 30 . The output lines of the inverter 24 and the second synchronous generator 32 provide the required energy to a load (not shown).

[0025] In this way, the wind power plant 10 generates electricity that is supplied to the loads. The electric power generated by the wind power plant 10 is rectified by a rectifier 20 and introduced into a direct voltage intermediate circuit 28 .

[0026] The inverter 24 generates an AC voltage from the applied DC voltage and provides it to ...

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Abstract

The invention relates to an island network with at least one power generator using renewable energy sources, wherein the power generator is preferably a wind power plant with a first synchronous generator; a DC voltage intermediate circuit with at least one a first rectifier and inverter; a second synchronous generator and an internal combustion engine connectable to said second synchronous generator. In order to realize the island network, a fully controllable wind power plant (10), and an electromagnetic coupling (34) between the second synchronous generator (32) and the internal combustion engine (30), provided that the wind power plant generates enough electricity for all loads connected with the highest possible efficiency, the internal combustion engines in this network can be completely deactivated.

Description

technical field [0001] The invention relates to an electrical island network with at least one power generator connected to a first generator. A second generator is further provided, which is connectable to an internal combustion engine. In this island network, the power generator connected to the first generator is usually a regenerative power generator, eg a wind farm, a hydroelectric power station, etc. Background technique [0002] Such island networks are generally known, especially for supplying electricity to areas that are not connected to a central power supply network, but where renewable energy sources such as wind and / or solar and / or hydropower etc. can be utilized . These areas may, for example, be islands, or remote or inaccessible areas characterized by their size, location and / or weather patterns. Of course, electricity, water or heat must be supplied to these areas. The energy required by these systems, at least electrical energy, is provided and distrib...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/40H02J7/34H02J9/08
CPCH02J3/40H02J7/34H02J9/08H02J2300/40Y02B10/70Y02E10/76H02J3/38
Inventor 艾劳埃斯·乌本
Owner 阿洛伊斯沃本
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