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Operating method for energy storage power generation system capable of adjusting reactive power

A technology of power generation system and operation method, which is applied in the direction of circuit device, AC network circuit, single-network parallel feeding arrangement, etc., and can solve the problems of large power fluctuations at grid-connected points, adverse effects on power distribution safety and reliability, and inability to adjust in time Energy storage system battery working status and other issues

Inactive Publication Date: 2016-08-24
CHENGDU XINWEIBAO TECH CO LTD
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Problems solved by technology

However, the existing technology only monitors the power generation unit and load unit in the microgrid, does not effectively monitor the energy storage system, and cannot timely adjust the working status of the battery in the energy storage system, which may easily cause the grid connection point between the microgrid and the external grid. The power fluctuates greatly, and the unstable power supply has a negative impact on the safety and reliability of power distribution

Method used

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  • Operating method for energy storage power generation system capable of adjusting reactive power
  • Operating method for energy storage power generation system capable of adjusting reactive power
  • Operating method for energy storage power generation system capable of adjusting reactive power

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Embodiment Construction

[0083] figure 1 It shows an energy storage power generation system 10 that can be used to adjust reactive power according to the present invention. The energy storage power generation system includes: a power generation device 12 for converting green energy into electric energy; the power generation device is preferably a wind power generator set; The load 14 in the energy storage power generation system; the energy storage device 15 is used to store energy and output power when it is connected to the grid in the power generation system; the SVG device 13 is used to provide reactive power for the energy storage power generation system 10; DC / AC bus bar, used to realize the power exchange 16 between the power generation device, the energy storage device, and the load in the energy storage power generation system in the power generation system; the grid-connected device 17, used to realize the power exchange between the energy storage power generation system 10 and the large po...

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Abstract

The invention discloses an operating method for an energy storage power generation system capable of adjusting reactive power. According to the operating method, a power generation apparatus, a load unit, an energy storage apparatus and SVG equipment are monitored concurrently; the power fluctuation value of the energy storage power generation system is collected in time; and the power fluctuation value is taken as the information source to dynamically adjust the power of the energy storage apparatus so as to smoothen the power of the grid-connection point and to improve the economical operation of the energy storage power generation system.

Description

Technical field [0001] The invention relates to an operation method of an energy storage power generation system that can be used to adjust reactive power. Background technique [0002] With the growth of the earth's population and the advancement of the industrialization process in developing countries, all kinds of fossil energy are rapidly exhausted, and the air pollution and ecological environment crisis caused by the use of fossil energy are becoming more and more serious. In order to reduce air pollution, protect the ecological environment, ensure long-term stable supply of energy, gradually change the existing energy structure, and vigorously develop green energy has become the consensus of all countries. [0003] With the maturity of wind power generation, photovoltaic power generation, wave power generation and other renewable energy power generation technologies, more and more renewable energy storage power generation systems are connected to the power grid in a di...

Claims

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Application Information

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IPC IPC(8): H02J3/50H02J3/28
CPCH02J3/28H02J3/50H02J2203/20
Inventor 靖新宇
Owner CHENGDU XINWEIBAO TECH CO LTD
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