Simulation machine of thermal power generating unit and hydroelectric power generating unit and communication interface of real time digital simulator (RTDS)

A technology of hydroelectric unit and communication interface, applied in the field of power system source-network co-simulation modeling and operation control

Inactive Publication Date: 2014-05-21
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Considering the AGC control process of the dynamic characteristics of the unit, there has been no experimental platform suitable for research in the laboratory. The present invention proposes a thermal power and hydroelectric unit simulation machine and RTDS ( RealTimeDigitalSimulator, real-time digital simulator) communication interface, the thermal power unit and hydroelectric unit simulation system on the server are used as the electromechanical side, and the RTDS power grid simulation module is used as the electromagnetic side, and the two are smoothly connected through the interface control module to realize the controllable step size Co-simulation; combined with the EMS scheduling control system, detailed simulation of the AGC control process considering the dynamic characteristics of the unit can be carried out

Method used

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  • Simulation machine of thermal power generating unit and hydroelectric power generating unit and communication interface of real time digital simulator (RTDS)
  • Simulation machine of thermal power generating unit and hydroelectric power generating unit and communication interface of real time digital simulator (RTDS)
  • Simulation machine of thermal power generating unit and hydroelectric power generating unit and communication interface of real time digital simulator (RTDS)

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Embodiment 1

[0035] figure 1 It is a schematic diagram of the communication interface structure of thermal power and hydroelectric unit simulator and RTDS, such as figure 1 As shown, the communication interface between the thermal power and hydroelectric unit simulator and RTDS provided by the present invention is used to realize the communication between the thermal power and hydroelectric unit simulator and the real-time digital simulator RTDS grid simulation. Among them, thermal power and hydroelectric unit simulators include detailed simulation modules for thermal power units and pumped storage generating units, and real-time digital simulator RTDS includes equivalent post AC / DC system power grid simulation modules, detailed simulation data input modules, unit non-detailed simulation modules and optical fiber Communication interface card.

[0036] The equivalent post-AC / DC system power grid simulation module in the traditional real-time digital simulator RTDS is used to generate the a...

Embodiment 2

[0066] Taking Mengxi power grid as an example, the equivalent Mengxi power grid has 31 525KV nodes, 63 230KV nodes, and 47 generators, which will further illustrate the present invention. The specific steps are as follows:

[0067] Step 1: Build detailed simulation modules of 1000MW, 600MW and 300MW thermal power units on the thermal power unit simulation system (STAR-90 graphical simulation support system). Daqi G5 is the 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 module of the three thermal power units include the boiler steam-water system, the wind and smoke system, the pulverization combustion system, the steam turbine body and the speed control system.

[0068] Step 2: Build detailed simulation modules of 6 200MW pumped storage hydroelectric units on the hydroelectric unit simulation system (STAR-90 graphica...

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Abstract

The invention discloses a simulation machine of a thermal power generating unit and a hydroelectric power generating unit and a communication interface of a real time digital simulator (RTDS) in the electric power system source network joint simulation modeling and running control technology field. The communication interface of the RTDS is used to achieve communication between power grid simulations of the simulation machine of the thermal power generating unit and the hydroelectric power generating unit and the RTDS. The communication interface of the RTDS comprises a unit detailed simulation module interface control unit and a unit non-detailed simulation module power frequency regulation control unit, wherein the unit detailed simulation module interface control unit is connected with an optical fiber communication interface card and a detailed simulation data input module, and the unit non-detailed simulation module power frequency regulation control unit is connected with an alternating current and direct current system power grid simulation module after equivalence and a unit non-detailed simulation module. The thermal power and hydroelectric power generating unit simulation machine and the communication interface of the RTDS are used in source network joint simulations and multistage dispatching closed-loop control systems, and achieve smooth connection between a simulation system of the thermal power generating unit and the hydroelectric power generating unit and an RTDS power grid simulation module.

Description

technical field [0001] The invention belongs to the technical field of power system source-network joint simulation modeling and operation control, and in particular relates to a thermal power and hydroelectric unit simulation machine and a communication interface of RTDS. Background technique [0002] In the actual power system, the electromagnetic transient process and the electromechanical transient process occur simultaneously and affect each other. Combining the two together will help to understand the dynamic characteristics of the transient stability process of large systems and the details of a specific power grid. Transient process. Therefore, the real-time interface between the electromagnetic transient calculation and the electromechanical transient calculation, and the simultaneous realization of the electromechanical transient simulation and local electromagnetic transient simulation of large-scale power systems in one simulation process have important practical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B17/02
Inventor 张海波王莉莉刘吉臻
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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