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Active power variation distribution method and system in source network load storage application scene

A technology of application scenarios and distribution methods, applied in the field of active power variation distribution methods and systems, to achieve the effect of reasonable distribution

Pending Publication Date: 2022-02-15
XUJI GRP +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the new power system based on the coordinated control of source-network-load-storage is still under construction, and the technology of energy storage power generation units, photovoltaic power generation, and wind power generation jointly participating in frequency regulation is still under exploration

Method used

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  • Active power variation distribution method and system in source network load storage application scene
  • Active power variation distribution method and system in source network load storage application scene

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Embodiment Construction

[0044] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0045] The grid frequency of the new power system including energy storage, photovoltaic, wind power and other new energy generator sets is unique. In order to realize the primary frequency modulation function in the transient process, the implementation method of the two-layer architecture of the main control unit and the execution unit is adopted. The main control unit mainly completes the decision-making of the distri...

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Abstract

The invention relates to an active power variation distribution method and system in a source network load storage application scene. The method comprises the following steps: acquiring an active power variation based on a power grid frequency, wherein the power grid generator set comprises an energy storage unit, a photovoltaic unit and a wind turbine generator set, and respective increased active power and reduced active power are calculated in real time; distributing the active power variation according to the sequence that the energy storage unit is prior to the photovoltaic unit and the photovoltaic unit is prior to the wind turbine unit, so the increased active power of the energy storage unit, the photovoltaic unit and the wind turbine unit does not exceed the increased active power, and the reduced active power does not exceed the reduced active power. The active power variation distribution of the power system is realized, and the resource adjustment is realized while the frequency modulation requirement is met.

Description

technical field [0001] The present invention relates to the technical field of electric power systems, and in particular to a method and system for distributing active power variation in a source-grid-load-storage application scenario. Background technique [0002] The power system should increase the proportion of photovoltaic power generation, wind power generation and energy storage on the power generation side, and reduce the proportion of thermal power units. With the grid-connection of a large number of photovoltaic power generation, wind power generation and energy storage, the traditional pattern of using large-scale thermal power units or hydropower units in frequency-regulated power plants as the main frequency-regulation resources can no longer meet the frequency regulation requirements of a new power system with a large number of new energy units connected to the grid. Especially in some provinces and cities in my country, in the new power system with counties as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38H02J3/24H02J3/48
CPCH02J3/381H02J3/241H02J3/48H02J2300/24H02J2300/28H02J2300/40Y02E10/56Y02E10/76
Inventor 张鹏远徐军毛建容王卫星张鹏王法宁谢青松阮仕双
Owner XUJI GRP
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