Method for controlling electrical consumers of an electrical supply grid

A technology of electric consumers and power supply network, which is applied in the direction of current collectors, power network operating system integration, electric vehicles, etc., and can solve the problems of power supply network stability degradation and difficulty in guaranteeing

Pending Publication Date: 2021-03-30
WOBBEN PROPERTIES GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Stabilization of the supply grid can thus be degraded or at least more difficult to guarantee if there is a particularly high proportion of renewable generators in the supply network

Method used

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  • Method for controlling electrical consumers of an electrical supply grid
  • Method for controlling electrical consumers of an electrical supply grid
  • Method for controlling electrical consumers of an electrical supply grid

Examples

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Embodiment approach

[0135] To set up the supply of peripheral equipment, especially the supply of control equipment. Another aspect is to propose a fast power reduction of the load or, according to one embodiment, to at least partially cover the power from the storage that the load needs or currently consumes. A rapid load increase is proposed when the voltage is restored, in particular such that the power value after the grid failure is set to the power value before the grid failure. It has also been recognized and proposed that a coverage of converter losses with dynamic grid support can be provided, ie in particular dynamic reactive power feed-in is possible.

[0136] An essential component of the concept according to the invention, at least according to one embodiment, is grid-following operation, in which the load, ie the consumer, follows the grid.

[0137] To this end, a store or a load connected to the DC voltage intermediate circuit (or intermediate circuit in short) can be provided. T...

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Abstract

The invention relates to a method for controlling an electrical consumer, wherein the electrical consumer is coupled to an electrical supply grid by using a frequency converter, wherein the electricalsupply grid has a grid voltage and is characterized by a rated grid voltage, the electrical supply grid is monitored for a grid fault, in the case of which the grid voltage deviates from the rated grid voltage by at least a first differential voltage, if the grid fault occurs the electrical consumer remains coupled to the electrical supply grid and a power take-up of the electrical consumer is altered in dependence on the deviation of the grid voltage from the rated grid voltage.

Description

technical field [0001] The invention relates to a method for controlling electrical consumers of an electrical supply network. Furthermore, the invention relates to at least one such electrical consumer. Background technique [0002] Electric energy is generated by generators such as large power plants or renewable energy sources such as wind power plants by means of a power supply network and transmitted to electrical consumers which require electrical energy for their operation. In this case, such a generator not only has the purpose of generating electrical energy, but also has the purpose and possibility of ensuring a stable operation of the power supply network by virtue of the manner in which it feeds electrical energy into the power supply network. This also applies to the fact that even in the event of grid faults, such as short-circuits and / or voltage dips, the power grid can continue to operate, ie can continue to be fed into it. [0003] If this is not possible ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/32B60L55/00H02J13/00
CPCB60L55/00H02J13/00006H02J3/322Y02T10/70Y04S40/12Y04S10/126Y02B90/20Y02E60/00Y04S20/248Y02B70/30Y02E10/76H02J13/00002H02J3/0012H02J9/06
Inventor 约翰内斯·布龙巴赫因戈·麦肯森斯特凡·格特杰格德斯
Owner WOBBEN PROPERTIES GMBH
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