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VSC valve control program simulation test method

A simulation test and program technology, applied in the field of computer simulation, can solve the problems of inaccurate and direct software simulation methods, high price of real-time simulation platform, code transplantation to related controllers, etc., to improve applicability and practicability, and reduce test Cost, Effect of Extended Test Coverage

Inactive Publication Date: 2018-05-25
CHINA EPRI SCIENCE & TECHNOLOGY CO LTD +2
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Problems solved by technology

[0003] At present, there are two main methods of testing valve control programs: software simulation and RTDS / RTLAB-based hardware-in-the-loop simulation: software simulation uses power system simulation software such as PSACD, Simulink, and Saber to calculate the VSC circuit model and verify the principle The VSC parameter design is reasonable and the control strategy is effective, but because the simulation software test environment is relatively ideal, and the control strategy based on the power system cannot directly transplant the code to the relevant controller, the software simulation method is not accurate and direct; based on RTDS / The simulation test system of RTLAB is composed of a digital real-time simulation platform, a digital-analog interface, and a control protection device including valve control equipment. Due to the use of half-physical and half-software hybrid simulation, this test method can directly and more accurately verify the controller. Hardware and control and protection algorithms including valve control algorithms, but the real-time simulation platform in the simulation test system based on RTDS / RTLAB is expensive

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  • VSC valve control program simulation test method

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Embodiment

[0047] Using the Simulink simulation system as a platform, the static var generator SVG circuit simulation model is built with Simulink's built-in graphical modeling function, and the valve control program test is realized through joint simulation with the Modelsim valve control program project.

[0048] (1) Establishment of SVG system circuit model;

[0049]The 35KV SVG system simulation model is built by using the built-in graphical modeling function of Simulink, including the main circuit topology of the SVG system model, main equipment parameters and grid parameters, etc. The main equipment parameters include capacitors, connecting reactors, and sub-modules.

[0050] (2) Establish SVG measurement system:

[0051] The measurement system needs to collect the voltage and current of the power system where the SVG is located and the internal electrical quantities of the converter. For example, the current of each phase, the voltage of sub-modules, etc., the current and voltmet...

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Abstract

The invention provides a VSC (Voltage Source Converter) valve control program simulation test method. The simulation test method comprises the following steps: establishing a VSC grade control systemand a VSC grade measuring system on the basis of a pre-established VSC circuit model; setting up FPGA program simulation engineering; and setting up a communication interface for combined simulation of a VSC system model and the FPGA program simulation engineering. The technical solution of the invention simulates the communication process in a control protection system, data among different control layers exchanges in accordance with a communication protocol, and a simulation test process is more real compared with that of single platform software.

Description

technical field [0001] The invention relates to the field of computer simulation of power electronic systems, in particular to a VSC valve control program simulation testing method. Background technique [0002] As an important part of the voltage source converter (Voltage Source Converter, VSC) control system, the valve control system is responsible for calculating and processing modulation waves and protection commands, outputting switching signals of power electronic devices, and feeding back the status of power electronic valves to the upper level in real time Control System. As the core of the valve control system, the valve control program will have an important impact on the valve control system and even the overall performance of the VSC. Therefore, testing the valve control program has become an essential work before VSC live debugging and put into operation. [0003] At present, there are two main methods of testing valve control programs: software simulation and...

Claims

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Application Information

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IPC IPC(8): G05B17/02
CPCG05B17/02
Inventor 郑博文刘慧文詹雄张佃青
Owner CHINA EPRI SCIENCE & TECHNOLOGY CO LTD
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