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Hardware-in-loop test system and method for reactive voltage control system of new energy field station

A technology of voltage control system and test system, applied in general control system, control/regulation system, test/monitoring control system, etc., can solve optimization and verification of AVC substation system control strategy error, pure digital simulation software can't really simulate The response characteristics of voltage and reactive power regulators can ensure safe operation, maintain voltage stability, and improve real-time performance.

Active Publication Date: 2020-12-01
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The control strategy of the AVC substation of the new energy station and the response characteristics of each voltage and reactive power adjustment equipment will directly affect the AVC regulation effect of the new energy station, and the pure digital simulation software cannot truly simulate various voltages and voltages in the control process of the AVC system. The actual response characteristics of the reactive power adjustment device have certain errors in optimizing and verifying the control strategy of the AVC substation system

Method used

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  • Hardware-in-loop test system and method for reactive voltage control system of new energy field station
  • Hardware-in-loop test system and method for reactive voltage control system of new energy field station
  • Hardware-in-loop test system and method for reactive voltage control system of new energy field station

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Embodiment 1

[0045] This embodiment discloses a new energy station reactive power voltage control system hardware-in-the-loop test system, such as figure 1As shown, the system hardware includes SVG controller, SVG host computer, AVC controller, AVC host computer, RT-LAB simulation host (Host PC) and simulation target PC (Target PC). Among them, the SVG host computer is connected to the SVG controller through MODBUS communication, and the SVG controller is connected to the simulation target machine through the I / O physical interface; the AVC host computer is connected to the AVC controller through the TCP / IP protocol, and the AVC controller is connected through the TCP / IP protocol. An AVC communication management machine, the AVC communication management machine is connected to the SVG controller through MODBUS communication, and connected to the simulation target machine through the TCP / IP protocol; the RT-LAB simulation host and the two simulation target machines are connected through the ...

Embodiment 2

[0059] The AVC sub-station of the new energy station, through the coordinated control of the reactive power adjustment equipment with different characteristics in the station, can ensure that the voltage of the grid-connected point of the station can follow the voltage regulation command on the high-voltage side bus issued by the AVC master station of the provincial regulation, and meet the Dispatch master station's voltage and reactive power adjustment requirements. Based on the reactive power voltage control system hardware-in-the-loop test system provided in Embodiment 1, this embodiment provides a test method for simulating the reactive power adjustment control of the AVC sub-station in the new energy station, and the AVC The control command issued by the controller is regarded as the control command issued by the AVC master station, which specifically includes the following steps:

[0060] (1) Based on the reactive power and voltage control system running in real time in ...

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Abstract

The invention discloses a hardware-in-loop test system and method for a reactive voltage control system of a new energy station. The system comprises a simulation host machine, a simulation target machine, an SVG controller and an AVC controller, wherein the simulation host machine, the SVG controller and the AVC controller are connected with the simulation target machine; the simulation host machine is configured to establish digital models including a power grid model, a photovoltaic power station model, an IGBT module and a transformer model, wherein the mathematical model is downloaded tothe simulation target machine after being subjected to code conversion; and the simulation target machine is configured to simulate the reactive voltage control system of the new energy field stationbased on a received model code and operate in real time. The effectiveness of an AVC substation control strategy and the dynamic response performance among the devices can be effectively verified under the condition close to the actual working condition.

Description

technical field [0001] The invention belongs to the technical field of hardware-in-the-loop testing, and in particular relates to a hardware-in-the-loop testing system and method for a reactive power voltage control system of a new energy station. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] In order to adapt to the complexity of the grid itself, the automatic voltage control (Automatic Voltage Control, AVC) system came into being. AVC refers to the use of computer systems, communication networks and adjustable equipment to calculate the control strategy online according to the real-time operating conditions of the power grid, and automatically close-loop control reactive power and voltage regulation equipment to achieve a reasonable reactive power and voltage distribution. The AVC system uses the Supervisory Control and Data Acquisit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02
CPCG05B23/0221
Inventor 王楠王士柏程艳孙树敏管荑马强耿玉洁邢家维王玥娇滕玮魏大钧于芃张兴友李广磊张用
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
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