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A composite dynamic power support system and method thereof

A dynamic power and support system technology, applied in the direction of reducing/preventing power oscillation, reactive power compensation, AC network load balancing, etc., can solve the problems of enhancing the inertia of the regional power grid system and unable to quickly supplement the system's active power shortage

Active Publication Date: 2021-06-15
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional condensers can significantly enhance the inertia of the regional power grid system and provide emergency reactive power voltage support for the system, but they cannot quickly supplement the active power deficit of the system

Method used

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  • A composite dynamic power support system and method thereof
  • A composite dynamic power support system and method thereof
  • A composite dynamic power support system and method thereof

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Embodiment Construction

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will clearly and completely describe the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention belong to the protection scope of the present invention.

[0038] figure 1 A structural diagram of the novel composite dynamic power support system of the present invention is shown.

[0039] Such as figure 1 As shown, the new composite dynamic power support system includes a condenser 1, a step-up transformer 2, an energy storage converter 3, an energy storage element 4, a condenser local control device 5, an energy storage local control device ...

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Abstract

The present invention proposes a composite dynamic power support system and method thereof, including a controller (1), an energy storage system, a controller (5), an energy storage controller (6) and comprehensive power dispatch management The system (7), wherein the AC outlet of the energy storage system is connected to the AC outlet of the condenser (1) and then connected to the AC power grid at the receiving end of the UHVDC transmission system; the power integrated regulation and control management system (7) is connected to the power grid dispatching system , to accept dispatching instructions from the grid dispatching system. The system adopts the combination of local control and centralized control, and integrates the reactive power support capability of the condenser (1) with the fast active power response capability of the energy storage system. Provide active and reactive power support for the AC power grid at the receiving end, and improve the safe and stable operation capability of the traditional AC power grid after being connected to the UHV DC transmission system.

Description

technical field [0001] The invention belongs to the technical field of energy storage, and relates to a novel composite dynamic active power and reactive power support system and its operation control method design applied to the phase commutation failure of UHV DC converter valves. Background technique [0002] At present, my country is still in the stage of industrialization and urbanization. In the medium and long term, the demand for electricity will continue to grow rapidly, and the eastern and central regions will remain unchanged for a long time as the power load center. The distribution and development characteristics of my country's energy resources determine the country's energy development. The further westward and northward movement of the strategy. Therefore, with the changes in my country's power supply layout, in order to meet the needs of economic development, the construction of UHV large power grids and the transmission of large-scale renewable energy from t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/16H02J3/24H02J3/32
CPCH02J3/16H02J3/24H02J3/32Y02E40/30
Inventor 于芃刘兴华孙树敏张用栾凤奎程艳左新斌赵鹏王玥娇滕玮李广磊王士柏张兴友魏大钧王楠李笋孔刚陈素红赵帅
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
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