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Power grid super power supply capability online control method and device

A technology of power supply capacity and control method, which is applied in the direction of electrical components, circuit devices, AC network circuits, etc., to achieve the effects of reducing misjudgment, improving power supply reliability, and reducing daily workload

Active Publication Date: 2021-01-01
LONGYAN POWER SUPPLY COMPANY STATE GRID FUJIAN ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] In order to solve the problems existing in the above-mentioned prior art, the present invention provides an online control method and device for the excess power supply capacity of the power grid, aiming at the large problem of manual adjustment by traditional controllers based on the load measurement results of the power grid and the use of EMS systems by traditional dispatchers Technically, the problem of low degree of automation aims to develop a method of intelligently and accurately regulating the load of the power grid to achieve precise scheduling, intelligent scheduling, and improve the reliability of power grid power supply

Method used

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  • Power grid super power supply capability online control method and device

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Effect test

Embodiment 1

[0060] see figure 1 , an online control method for power grid super power supply capacity, comprising the following steps:

[0061] Source data acquisition, through the EMS energy management system to obtain real-time operation data of the power grid. The real-time operation data includes the remote control of the steady-state operation process of each part of the power system calculated through the grid structure, parameters, and operating conditions of components such as lines and main transformers. Real-time operation data such as communication and telemetry;

[0062] Establish a power grid model, obtain the topological relationship and computing nodes of the power grid through the real-time operation data of the power grid, generate a power grid model according to the topological relationship of the power grid and computing nodes, build a power grid model in the advanced application software system of the power grid, and establish the power grid topology as a power grid th...

Embodiment 2

[0071] Further, the real-time search for the power flow data of the equipment in the power grid, when the power flow data of an equipment triggers a preset over-power supply overload condition, the method for determining the overload of the equipment specifically includes the following steps:

[0072] Using the Petri model, establish a Petri model storehouse according to the equipment in the grid, and use the power flow data of the equipment in the grid as the input source of the Petri model;

[0073] Preset the restriction conditions of the place in the Petri model, the restriction condition is the super power supply capacity of the equipment corresponding to the place;

[0074] When a storehouse triggers a limit condition, the Petri model is used to determine the overloaded equipment.

[0075] Further, the specific method of searching for the optimal path for adjusting the load according to the topology relationship of the overloaded equipment includes the following steps: ...

Embodiment 3

[0086] An online control device for power grid super power supply capacity, including a memory and a processor, the memory stores instructions, and the instructions are adapted to be loaded by the processor and perform the following steps:

[0087] Source data acquisition, through the EMS energy management system to obtain real-time operation data of the power grid. The real-time operation data includes the remote control of the steady-state operation process of each part of the power system calculated through the grid structure, parameters, and operating conditions of components such as lines and main transformers. Real-time operation data such as communication and telemetry;

[0088] Establish a power grid model, obtain the topological relationship and computing nodes of the power grid through the real-time operation data of the power grid, generate a power grid model according to the topological relationship of the power grid and computing nodes, build a power grid model in ...

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Abstract

The invention relates to a power grid super power supply capability online control method and device. The control method comprises the following steps: obtaining real-time operation data of a power grid through an EMS energy management system; obtaining a topological relation and calculation nodes of a power grid through real-time operation data of the power grid, generating a power grid model according to the topological relation and the calculation nodes of the power grid, and drawing the power grid model into an electronic drawing by utilizing a drawing tool; carrying out load flow calculation according to the topological relation of the power grid and the real-time operation data of the power grid to obtain load flow data of each calculation node; presetting a super power supply overload condition for equipment in the power grid, and compiling an operation sequence table used for indicating the control priority; and searching the power flow data of the equipment in the power grid in real time, judging that the equipment is overloaded when the power flow data of one piece of equipment triggers a preset super power supply overload condition, and automatically generating and executing a control plan.

Description

technical field [0001] The invention relates to an online control method and equipment for power grid exceeding power supply capacity, belonging to the technical field of power grid control. Background technique [0002] For the power system in operation, the controller manually adjusts the load of related equipment according to the simulation calculation results of the EMS online power flow high-level application software. The power grid is generally closed-loop design, open-loop operation, connected through a hot standby switch, and generally presents a radiation type in structure. Load transfer is a common problem in power grid operation and scheduling. When encountering equipment overload, equipment failure, power outage, and equipment maintenance, In order to improve the reliability of power supply to users, controllers generally rely on scheduling experience or rough manual calculations, and then perform load transfer and restore power supply to out-of-power loads. At...

Claims

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Application Information

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IPC IPC(8): H02J3/06H02J3/00
CPCH02J3/06H02J3/001H02J2203/10H02J2203/20
Inventor 叶杰钟秋添卢晓明范海威程华新曹晶吴益斌李德才肖荣洋黄燕帼王夏菁龚秀兰沈锦书朱志鑫
Owner LONGYAN POWER SUPPLY COMPANY STATE GRID FUJIAN ELECTRIC POWER
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