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Grid-source joint simulation and multistage dispatch closed-loop control system for grid-source joint simulation

A co-simulation, closed-loop control technology, applied in system integration technology, information technology support system, single-network parallel feeding arrangement, etc.

Active Publication Date: 2014-04-09
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no suitable simulation tool capable of performing such procedural dynamical system simulation

Method used

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  • Grid-source joint simulation and multistage dispatch closed-loop control system for grid-source joint simulation
  • Grid-source joint simulation and multistage dispatch closed-loop control system for grid-source joint simulation
  • Grid-source joint simulation and multistage dispatch closed-loop control system for grid-source joint simulation

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Experimental program
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Effect test

Embodiment 1

[0060] figure 1 It is a schematic diagram of network source co-simulation and its multi-level dispatching closed-loop control system. Such as figure 1 As shown, the network source co-simulation and its multi-level dispatching closed-loop control system provided by the present invention include: a power supply side simulation subsystem, a power grid side simulation subsystem, a protocol conversion module and a dispatching subsystem. Among them, the simulation subsystem on the power supply side is connected to the simulation subsystem on the grid side, the simulation subsystem on the grid side is connected to the protocol conversion module, and the protocol conversion module is connected to the dispatching subsystem.

[0061] The power side simulation subsystem is used to simulate the working status of each thermal power unit, pumped storage hydropower unit and wind farm, generate basic simulation data and send it to the grid side simulation subsystem; it is also used to receiv...

Embodiment 2

[0109] Taking Mengxi Power Grid as an example, the present invention is further described. After the equivalent value, there are 31 525KV nodes, 63 230KV nodes (including 7 wind farm access points) and 47 generators in the western Mengxi power grid. figure 2 It is a flow chart of the grid-source co-simulation and its multi-level dispatching closed-loop control system construction method based on the western Mengxi power grid. The specific steps are as follows:

[0110] Step 1: Build detailed simulation modules of 1000MW, 600MW, and 300MW thermal power units on the power plant simulation system (STAR-90 graphical simulation support system), and the three thermal power units are respectively based on EQG085, Mengdaihai G1, and Mengda Flag G5 as a prototype. Among them, EQG085 is the equivalent machine of the external network, and the data of a 1000MW unit of Guangdong Chaozhou Power Plant is selected. The simulation objects of the detailed simulation models of the three ther...

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Abstract

The invention belongs to the technical field of electric power system source-grid joint simulation and operation control, and discloses a grid-source joint simulation and a multistage dispatch closed-loop control system for grid-source joint simulation. The multistage dispatch closed-loop control system comprises a power source side simulation sub system, a power grid side simulation sub system, a protocol conversion module and a dispatch sub system, wherein the power source side simulation sub system is used for simulating work states of all units and adjusting the work states of simulation units according to a control command and adjusting parameters, the power grid side simulation sub system is used for generating power grid simulation data and transferring the control command and the adjusting parameters to the power source side simulation sub system, the protocol conversion module is used of achieving data conversion, and the dispatch sub system is used for generating the control command and sending the control command to the power grid side simulation sub system. The multistage dispatch closed-loop control system for grid-source joint simulation can be used for simulating joint simulation of large-scale wind power integration, the frequency changing condition of a power grid in the wind power changing process can be reflected more truthfully, and real-time data sources are provided for online analysis and study of an energy managing system, a wide area measuring system and distribution type state estimation.

Description

technical field [0001] The invention belongs to the technical field of power system source-network joint simulation and operation control, and in particular relates to a network-source joint simulation and its multi-level scheduling closed-loop control system. Background technique [0002] In the 21st century, my country's electric power construction speed is accelerating, the power scale is expanding, and the operating characteristics of the power grid are becoming more and more complex; large-capacity generator sets have a more prominent role in the safety and stability of the power grid; people's requirements for power quality are getting higher and higher. In these new situations, higher requirements are placed on the coordination between the power supply and the grid. Source-network coordinated operation control technology is of great significance to promote the coordinated operation of power supply and power grid, and ensure the safe, stable, high-quality and economica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38H02J13/00
CPCY02E40/72Y02E10/763Y04S10/123Y02E10/76Y02E40/70
Inventor 刘吉臻张海波王莉莉葛丹丹李鹏华杨灿曾德良
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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