User-defined interface of wind power station simulation machine and RTDS (real time digital simulator)

A custom interface and wind farm technology, applied in the direction of instruments, simulators, control/regulation systems, etc.

Inactive Publication Date: 2014-05-07
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

Method used

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  • User-defined interface of wind power station simulation machine and RTDS (real time digital simulator)
  • User-defined interface of wind power station simulation machine and RTDS (real time digital simulator)
  • User-defined interface of wind power station simulation machine and RTDS (real time digital simulator)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] figure 1 It is a schematic diagram of the custom interface structure between the wind farm simulator and the RTDS simulator. Such as figure 1 As shown, the self-defined interface provided by the present invention is respectively connected with the equivalent AC / DC system power grid simulation module and the optical fiber communication interface card in the real-time digital simulator RTDS. Among them, the optical fiber communication interface card is connected with the detailed simulation module of the wind farm.

[0025] After the equivalence, the power grid simulation module of the AC and DC system is used to send the downlink data to the detailed simulation module of the wind farm through the optical fiber communication interface card. The downlink data includes the switch status of the wind farm access point, the line voltage of the wind farm access point, the actual output of the wind farm, AGC instructions and synchronization signals.

[0026] The wind farm det...

Embodiment 2

[0072] The present invention will be further described below by taking Mengxi power grid as an example. After the equivalent value, there are 31 525KV nodes, 63 230KV nodes (including 7 wind farm access points) and 47 generators in the Mengxi power grid. The specific steps are as follows:

[0073] Step 1: Build a detailed simulation model of a large-scale wind farm on the power plant simulation system (STAR-90 graphical simulation support system), use 11 servers to simulate a 1000MW wind farm, and 11 servers can be freely combined and flexibly connected to Mengxi 7 One 230kV wind farm access point, seven wind farm access points are Mengkulun, Mengqitai, Mengwendu, Mengxingguang, Mengzhongjie, Mengdesheng, Mengtangwu. The simulation objects of the wind farm detailed simulation module include main modules such as wind module, wind turbine module, transmission chain module, generator module, and converter module, as well as various auxiliary modules.

[0074] Step 2: Use BPA to ...

Embodiment 3

[0081] This embodiment is a test for a custom interface of a wind farm. Connect the custom interface module of the wind farm with the infinite power supply, and its three-phase test system is as follows: Figure 6 shown. S is an ideal voltage source with a frequency of 50Hz and a rated line voltage of 230kV, R is a resistance of 0.001Ω, UA , U B , U C is the phase voltage of the three-phase bus, the fault generator is connected to the bus, Ph A 、Ph B 、Ph C by U A , U B , U C Obtained by the phase measurement element, it is the initial phase input of the three-phase voltage of the wind farm custom interface module, P 0 , Q 0 Customize the active and reactive power input of the interface module for the wind farm, I A , I B , I C Customize the current flowing into the system from the interface module of the wind farm, P and Q are U A , U B , U C and I A , I B , I C The actual output of the self-defined interface module of the wind farm obtained through the power...

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Abstract

The invention discloses a user-defined interface of a wind power station simulation machine and an RTDS (real time digital simulator), and belongs to the technical field of electric power system source network joint simulation modeling and running control. The user-defined interface is used for data communication between the RTDS and a wind power station simulation system and respectively connected with an equivalence rear alternating current and direct current system grid simulation module in the RTDS and an optical fiber communication interface card, the optical fiber communication interface card is connected with a wind power station detailed simulation module in the wind power station simulation system, and the user-defined interface is used for receiving uplink signal data, acquiring instantaneous voltage and an instantaneous phase angle of a wind field access point from the equivalence rear alternating current and direct current system grid simulation module, performing calculation according to the received and acquired data to obtain instantaneous current and transmitting the instantaneous current to the equivalence rear alternating current and direct current system grid simulation module. By the aid of the user-defined interface, grid joint simulation of the wind power station detailed simulation machine and the RTDS is realized.

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 self-defined interface between a wind farm simulator and an RTDS simulator. Background technique [0002] The technology of wind power generation is becoming more and more mature, and the cost of wind power generation is continuously decreasing. Among the utilization of various renewable energy sources, wind energy has strong competitiveness and has become the fastest growing new energy source in the power system. [0003] The grid-connected operation of wind farms is an effective way to achieve large-scale utilization of wind energy. However, the randomness and intermittent nature of wind power and the demand for reactive power during unit operation will endanger the stable operation of the power system. The impact of wind farms on voltage mainly includes voltage fluctuations, flicker, waveform dis...

Claims

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Application Information

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IPC IPC(8): G05B17/02
Inventor 张海波王莉莉王胜尧刘吉臻
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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