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Energy storage device control method and power management system

A technology of energy storage device and system frequency, applied in the field of ancillary service provision

Active Publication Date: 2018-09-25
LSIS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are currently difficulties in constructing such power plants

Method used

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  • Energy storage device control method and power management system
  • Energy storage device control method and power management system
  • Energy storage device control method and power management system

Examples

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Embodiment Construction

[0024] It should be understood that the terms herein should not be construed to be limited to general or dictionary meanings, but it should be considered that inventors can properly define terms to describe their inventions in the best manner, based on the meanings and principles corresponding to the technical aspects of the embodiments And be interpreted.

[0025] Therefore, it should be understood that the embodiments described here and the configurations illustrated in the drawings are only preferred examples and do not fully represent the technical solutions of the embodiments, and therefore, various substitutions, equivalents or Revise.

[0026] Hereinafter, embodiments will be described in detail with reference to the accompanying drawings.

[0027] figure 2 is a block diagram illustrating a power management system generated according to an embodiment.

[0028] The power management system 100 according to the embodiment includes a generator 101, a direct current / alte...

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Abstract

The invention provides an energy storage device control method and a power management system. A method of controlling the charging amount of an energy storage device connected to the system according to a change in the operating frequency of the system is proposed. The method includes: determining whether the operating frequency of the system falls within a dead zone corresponding to a preset frequency range; in the event that the operating frequency falls within the dead zone, determining whether an SOC level indicative of a charge amount of an energy storage device falls within a preset maintenance range; and in the case that the operating frequency of the system falls into the dead zone range and the SOC level is outside the preset maintenance range, adjusting the SOC level so that the SOC level falls into the maintenance range, wherein the maintenance range represents between a preset upper limit and a preset lower limit , wherein adjusting the SOC level includes performing different adjustment operations for the case where the SOC level is less than the lower limit and the case where the SOC level is greater than the upper limit.

Description

technical field [0001] The present disclosure relates to the provision of ancillary services for power systems, and in particular, to integrated energy storage using power storage systems and frequency regulation techniques. Background technique [0002] For a certain given time, eg for a day, the power system operator estimates the amount of energy required per second, minute or hour. [0003] The power supplier supplies energy through the power plant in an amount approximately equal to the estimated amount. In general, the average actual load is close to the estimated amount. However, the amount of energy required may change rapidly, and if the amount of energy required becomes larger or smaller than desired, the actual load increases due to the rapid change in the amount of energy. [0004] In response to such changes, electricity suppliers vary the power output of power plants to meet required loads. Changes in the output of a power plant may be referred to as "load f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/24H02J3/32
CPCH02J3/32H02J3/241H02J3/36Y04S10/14Y02E60/00G01R31/382
Inventor 沈在成
Owner LSIS CO LTD
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