SVG control hardware-in-the-loop simulation platform and simulation method

A technology of simulation platform and simulation method, which is applied in the direction of general control system, control/regulation system, electrical components, etc., and can solve problems such as insufficient support capacity, weak DC sending end power grid, chained off-grid of power generation units, etc.

Pending Publication Date: 2020-07-28
CHINA ELECTRIC POWER RES INST +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The fault ride-through control strategy, voltage tolerance capability and reactive power/voltage control strategy of the power generation unit and reactive power compensation device of the existing new energy cluster transmission system have great constraints on the DC transmission capacity, and the DC transmission power grid

Method used

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  • SVG control hardware-in-the-loop simulation platform and simulation method
  • SVG control hardware-in-the-loop simulation platform and simulation method
  • SVG control hardware-in-the-loop simulation platform and simulation method

Examples

Experimental program
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Effect test

Embodiment 1

[0072] This application provides a hardware-in-the-loop simulation platform for SVG control, combining figure 1 Instructions, including:

[0073] The real-time simulator is used to simulate the SVG circuit topology model and model parameters to conduct the disturbance test of the power grid voltage of the sending end system of the new energy base, and verify whether the SVG controller is off-grid;

[0074] The workstation is used to issue test instructions to the real-time simulator based on the disturbance test of the grid voltage of the sending end system; the workstation is also used to obtain the SVG circuit topology model through the real-time simulator and execute based on the test instructions The test process information of the test is monitored;

[0075] Among them, the real-time simulator is used to simulate the SVG circuit topology model and model parameters to conduct the disturbance test of the power grid voltage of the sending end system of the new energy base, ...

Embodiment 2

[0080] This application provides a simulation method based on the SVG control hardware-in-the-loop simulation platform. Taking a 35kV direct-mounted SVG connected to a 110kV transmission power grid as an example, the simulation method for SVG transient reactive power characteristics based on control hardware-in-the-loop is described. . Such as figure 2 As shown, in the 35kV direct-mounted SVG main circuit topology, the SVG consists of multiple IGBT rectifier modules connected in series to form a multi-level reactive power unit, which is connected to the 110kV power grid through a step-up transformer after being connected to the device impedance and charging resistor. The SVG device detects the grid voltage and current on the compensation side (35kV or 110kV side), and the control device emits or absorbs reactive power to complete the reactive power compensation function. The SVG reactive power compensation device generally adopts a double closed-loop control structure with a...

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Abstract

The invention provides an SVG control hardware-in-loop simulation platform and simulation method. The SVG control hardware-in-loop simulation platform comprises a workstation, an SVG controller and areal-time simulator; the real-time simulator is used for simulating an SVG circuit topology model and model parameters to carry out disturbance tests on the grid voltage of the sending end system of anew energy base, and verifying whether the SVG controller is off-grid or not; the real-time simulator is connected with the workstation and the SVG controller; the workstation is used for issuing a test instruction to the real-time simulator based on the disturbance tests of the power grid voltage of the sending end system; the workstation is also used for acquiring test process information executed by the SVG circuit topology model based on the test instruction through the real-time simulator to monitor the test; the disturbance tests of the grid voltage of the sending end system comprise ahigh-voltage ride through disturbance test, a low-voltage ride through disturbance test and a commutation failure disturbance test; simulation and reproduction of an on-site transient working condition are realized; the transient operation characteristics of the reactive power compensation device of the new energy base can be mastered; and a reasonable new energy grid-connected equipment operationcontrol strategy is provided.

Description

technical field [0001] The invention belongs to the technical field of electromagnetic transient simulation of SVG reactive power compensation devices in new energy power generation bases, and relates to a simulation platform and simulation method for SVG control hardware in the loop. Background technique [0002] At present, the fault ride-through control strategy, voltage tolerance and reactive power / voltage control strategy of the power generation unit and reactive power compensation device of the existing new energy cluster transmission system have great constraints on the DC transmission capacity, and the DC transmission power grid is weak and unsupported. Insufficient capacity, DC commutation failure, blocking and other faults are likely to cause a large number of power generation units to be disconnected from the grid. Due to the complex voltage regulation characteristics of wind turbines, photovoltaic power generation units, and dynamic reactive power compensation de...

Claims

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Application Information

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IPC IPC(8): G05B17/02H02J3/50H02J3/18
CPCG05B17/02H02J3/1842H02J3/1864H02J3/50Y02E40/30
Inventor 刘纯何国庆李光辉高丽萍张柏林邵冲张兴李丽娜孙艳霞刘可可徐宏雷何欣
Owner CHINA ELECTRIC POWER RES INST
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