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Compound dynamic power supporting 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 voltage adjustment, etc., can solve the problems of not being able to quickly supplement the active power of the system, enhance the inertia of the regional power grid system, and avoid cascading failures The effect of improving the reliability of power supply and power quality of power supply, improving the safety, stability and economy of operation

Active Publication Date: 2019-04-26
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +1
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  • 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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  • Compound dynamic power supporting system and method thereof
  • Compound dynamic power supporting system and method thereof
  • Compound dynamic power supporting 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 invention provides a compound dynamic power supporting system and a method thereof. The compound dynamic power supporting system comprises a phase modifier (1), an energy storage system, a phase modifier local regulating and control device (5), an energy storage local regulating and control device (6) and a power integrated dispatching management system (7), wherein an alternating current outlet of the energy storage system and an alternating current outlet of the phase modifier (1) are connected to access an alternating current network at the receiving end of an ultra high voltage directcurrent power transmission system; the power integrated dispatching management system (7) is connected with a power grid dispatching system, and receives dispatching instructions from the power grid dispatching system. According to the compound dynamic power supporting system, a mode combining local control and centralized control is adopted, the reactive power supporting capacity of the phase modifier (1) is integrated with the fast active power response capacity of the energy storage system, active and reactive power supporting is provided for the alternating current network at the receivingend in the process of direct current blocking of an ultra high voltage direct current power transmission converter valve, and the safe and stable operation ability of traditional alternating currentpower grids after being accessed to the ultra high voltage direct current power transmission system is improved.

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 Applications(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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