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Novel intelligent electric quantity balance method adopting power real-time operation

A technology of power balancing and real-time computing, applied in electrical components, circuit devices, AC network circuits, etc., can solve problems such as the inability of real-time online power balance in the power efficiency management system

Inactive Publication Date: 2014-04-02
YUN NAN ELECTRIC TEST & RES INST GRP CO LTD ELECTRIC INST +1
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Problems solved by technology

[0038] The purpose of the present invention is to invent a new intelligent power balance method based on power real-time calculation, which overcomes the existing power balance problem. Insufficient optimization and improvement to achieve the purpose of improving the accuracy of electric energy balance, improving the efficiency of electric energy balance, and meeting the purpose of real-time online monitoring and real-time balance of electric energy

Method used

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  • Novel intelligent electric quantity balance method adopting power real-time operation
  • Novel intelligent electric quantity balance method adopting power real-time operation
  • Novel intelligent electric quantity balance method adopting power real-time operation

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Embodiment

[0103] Down Figure 6It is a schematic diagram of the application of the intelligent power balance method for real-time calculation of new power in a power plant. The power balance is used instead of the power balance for the generator-transformer group, 10kV sub-section A, 10kV sub-section B, and 10kV desulfurization bus. System unbalanced power and unbalanced rate.

[0104] Take the generator-transformer unit of a power plant as an example:

[0105] ①The power balance is as follows:

[0106] (P(t)g-P(t)n)=(P(t) 1 +P(t) 2 +P(t) tl +ΔP(t)t+P(t) 3 )+ΔP(t)l1

[0107] ② The unbalanced power is calculated as follows:

[0108] ΔP(t) f =(P(t)g-P(t)n)-((P(t) 1 +P(t) 2 +P(t) tl +ΔP(t)t+P(t) 3 )+ΔP(t)l1)

[0109] in:

[0110] ΔP(t) f — unbalanced power, kW;

[0111] P(t)g—generator active power, kW; see item 1 in the table below.

[0112] P(t)n——active power of main transformer outlet (on-grid), kW;

[0113] P(t) 1 ——High variable active power of unit A plant, kW;

...

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Abstract

The invention discloses a novel intelligent electric quantity balance method adopting power real-time operation. The novel intelligent electric quantity balance method comprises the following steps of setting up a mathematic model; establishing computing methods of active power and active electric quantity; carrying out electric energy information collection and electric energy balance on multifunctional electric energy meters in sub-regions and sub-systems according to house supply distribution characteristics of a power plant or a power station and a power distribution system; after the collected data of the multifunctional electric energy meters is processed, transmitting the data to a data analyzing and processing area by an optical fiber, and carrying out secondary processing by an electric energy efficiency on-line monitoring and management system to provide front-end display, analysis and printing. According to the novel intelligent electric quantity balance method, the electric energy balance precision is improved, the electric energy balance efficiency is increased, and the purposes of real-time on-line monitoring and real-time balance of the electric energy are met.

Description

technical field [0001] The patent of the invention relates to a new type of intelligent power balance method for real-time calculation of power, which is suitable for power consumption systems of different voltage levels in thermal power plants, hydropower stations, nuclear power stations and power distribution systems, and can be used for different buses, different power consumption equipment and systems, based on the new Real-time power calculation method, real-time, online, dynamic power balance function, suitable for online, remote, intelligent electric energy efficiency management system, fine management of electric equipment and online real-time balance function of electric energy. Background technique [0002] Electric energy balance is to study and analyze the distribution and utilization of a certain amount of electric energy after it enters the power consumption system, that is, how much power is effectively used and how much power is lost in each link of the power ...

Claims

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Application Information

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IPC IPC(8): H02J3/00
Inventor 赵明沈发荣张浩陈红赛俊聪吴艳伟文志勇
Owner YUN NAN ELECTRIC TEST & RES INST GRP CO LTD ELECTRIC INST
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