Island network and method for operation of an island network

Abstract

The arrangement has at least one first energy generator using a regenerative energy source, preferably a wind power system (10) with a generator, and a second generator (32) for coupling to an internal combustion engine (30). The revolution rate and blade setting of the wind power generator can be controlled and there is an electromagnetic coupling (34) between the second generator and internal combustion engine. Independent claims are also included for the following: a method of operational control of an electrical island network with at least one wind power system and the use of a synchronous generator as a network mimic for a mains inverter.

Description

technical field [0001] The invention relates to an isolated grid having at least one energy generator, which is coupled to a first generator. Furthermore, there is a second generator which can be coupled to the internal combustion engine. In such isolated grids, the energy generator connected to the first generator is generally a renewable energy generator, such as a wind power plant, a hydropower station or the like. Background technique [0002] Such isolated grids are generally known, especially for supplying areas not included in the central power supply grid, but where renewable energy sources such as wind and / or solar and / or water etc. can be used. These areas may be, for example, small islands, or remote or inaccessible areas with special size, location and / or climatic conditions. However, electricity, water and heating are also required in such areas. The energy required for this, at least electrical energy, is provided and distributed by the isolated grid. Advan...

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Problems solved by technology

This is also a disadvantage from the point of view of maintenance requirements, fuel consumption and the burden of exhaust gases on the environment, because even when the internal combustion engine has to use only a small part of the power available (this power is usually only 3 to 5 Kw) for operation as a grid The fuel consumption is not small when the generator is composed of components, and it consumes several liters of fuel per hour

[0006] A further problem with known isolated grids is that there must be reactive loads represented by so-called "dumped loads", consuming the surplus electricity generated by the primary energy generator, so that the primary energy generator does not run idling when the load is disconnected , idling may cause mechanical damage to the basic energy generator due to excessive rotational speed

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