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Method and power system for controlling power delivered by an electrical energy source on a power supply network

A technology of power supply network and electric energy, applied in the direction of AC network circuit, AC network voltage adjustment, AC network with the same frequency from different sources, etc., to achieve the effect of increasing the length of time

Active Publication Date: 2020-08-18
SCHNEIDER ELECTRIC IND SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0016] However, said droop control method presents disadvantages regarding the period of time during which the electrical energy storage unit supplies power to a load connected to the network and the management of the electrical energy stored in the storage unit, especially if the storage unit does not store the same amount of electrical energy

Method used

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  • Method and power system for controlling power delivered by an electrical energy source on a power supply network
  • Method and power system for controlling power delivered by an electrical energy source on a power supply network
  • Method and power system for controlling power delivered by an electrical energy source on a power supply network

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Embodiment Construction

[0059] figure 1 A power system 12 according to a first embodiment of the invention is presented in FIG. The power system 12 includes a main power supply component 14 , two sources of electrical power 16 , such as storage units 16 , and two electrical loads 18 connected to a power supply network 20 .

[0060] exist figure 1 , the main power supply part 14 is disconnected from the power supply network 20 and no longer supplies power to the power supply network 20 and the load 18.

[0061] The storage unit 16 is connected to the power supply network 20 and is intended for supplying power to the load 18 when the main power supply 14 is disconnected from the network 20 .

[0062] The storage units 16 each include a storage unit 22 for storing electrical energy and a control module 24 for controlling the storage unit 22 . The storage unit 16 is configured to output a local AC voltage signal S1 on the supply network 20 ij , in order to supply power to the load 18, where j is an i...

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Abstract

In this control method for controlling electric power delivered on a power supply network (20) by at least two electrical energy sources (16), each electrical energy source (16) comprises storage means (22) for storing electrical energy. The method comprises the following steps for each electrical energy source (16): - applying an alternating voltage signal to the power supply network (20) via the electrical energy source (16); - measuring the associated electrical power; ) in ); - calculate the setpoint value of the voltage signal parameter as a function of the measured power; - modify the voltage signal, modifying the value of the voltage signal parameter to be equal to the calculated setpoint value. During the calculation step, a setpoint value is additionally calculated as a function of the determined stored electrical energy.

Description

technical field [0001] The present invention relates to a control method for controlling power delivered over an electrical supply network by at least two electrical energy sources, and an associated electrical system comprising at least two electrical energy sources connected to the electrical supply network. Background technique [0002] In the field of power supply of a power supply network to which loads are connected, power systems are known which comprise a main power supply part capable of supplying power to a load via the network, and an electric power supply unit, also called a power supply unit, connected to the power supply network. energy. In the following part of the description, the example in which the electrical energy supply unit corresponds to an electrical energy storage unit connected to the supply network will be considered. However, it is known that the electrical energy supply unit considered in such power systems corresponds more generally to a volta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J9/06
CPCG06Q50/06H02J3/04H02J3/12H02J3/38H02J3/00
Inventor V.奥拉格尼尔
Owner SCHNEIDER ELECTRIC IND SAS