Development, calibration and simulation of generic VSC-HVDC high level controls for DC grid Simulation
作者:
Rokibul Hasan
所属专业方向:
电力工程
摘要:
Abstract - Energy security concerns and the environmental impact of conventional power generation sources has led to an increase in renewable energy penetration worldwide. Power transmission from remote generation sites to consumers over long distance is most efficient using high voltage direct transmission lines. Therefore, long distance power transmission and the integration of power generated by renewable energy resources are considered as key aspects in the development of sustainable energy systems capable of secure and stable electric power supply. Voltage source converter based high voltage direct current (VSC-HVDC) long distance power transmission lines are needed to incorporate renewable energy sources to the grid. The significance of the research work in this field is obvious, however, advances in the area are detracted because of the lack of available VSC-HVDC system models. The purpose of this thesis is to provide generic models of VSC-HVDC controls and meshed networks. This thesis studies VSC-HVDC control systems and improves high level controls for the VSC. A point to point and four terminal VSC-HVDC systems are modeled in MATLAB/Simulink. Both offline and real-time simulation models are developed. The controllers are tuned and then tested in the developed test systems with several test cases through offline simulations in MATLAB/Simulink. All the models are modified and transferred to Opal-RT’s real time targets and simulations are carried out for several test cases. Improved controller simulation results along with results from the conventional controllers are contrasted.
Development, calibration and simulation of generic VSC-HVDC high level controls for DC grid Simulation , w( }# o3 L7 N9 O直流电网仿真中通用轻型直流输电高电平控制的开发、校准和仿真 # _' k* D$ k: `8 r' W! ]Author(s)! B/ R, f1 Z) V+ U$ M
Rokibul Hasan, ' A0 j& N6 k0 `2 L( A xAbstract s h) F2 V9 y* u! U4 r
Abstract - Energy security concerns and the environmental impact of conventional power generation sources has led to an increase in renewable energy penetration worldwide. Power transmission from remote generation sites to consumers over long distance is most efficient using high voltage direct transmission lines. Therefore, long distance power transmission and the integration of power generated by renewable energy resources are considered as key aspects in the development of sustainable energy systems capable of secure and stable electric power supply. Voltage source converter based high voltage direct current (VSC-HVDC) long distance power transmission lines are needed to incorporate renewable energy sources to the grid. The significance of the research work in this field is obvious, however, advances in the area are detracted because of the lack of available VSC-HVDC system models. The purpose of this thesis is to provide generic models of VSC-HVDC controls and meshed networks. This thesis studies VSC-HVDC control systems and improves high level controls for the VSC. A point to point and four terminal VSC-HVDC systems are modeled in MATLAB/Simulink. Both offline and real-time simulation models are developed. The controllers are tuned and then tested in the developed test systems with several test cases through offline simulations in MATLAB/Simulink. All the models are modified and transferred to Opal-RT’s real time targets and simulations are carried out for several test cases. Improved controller simulation results along with results from the conventional controllers are contrasted. ! \6 R @7 r0 R5 E. l
对传统能源安全的忧虑和传统能源生成对环境的影响加速了新能源在世界范围内的普及。使用高压直流输电线进行远程发电站到消费者的长距离电力传输最为有效。因此，在开发能够保证安全稳定电力供应的可持续能源系统中，长距离输电与可再生能源生成的电能的整合被认为是关键方面。要将可再生能源并入电网中，就需要用到基于电压源转换器的高压直流（VSC-HVDC）长距离输电线。这一领域研究工作的重要性是不言而喻的，然而，由于缺乏可用的VSC-HVDC系统模型，这一领域的优势被降低了。这篇论文的目的即为VSC-HVDC控制和网状电网提供通用模型。论文研究了VSC-HVDC控制系统并改进了VSC的高电平控制。利用MATLAB/Simulink对一个点对点四端VSC-HVDC系统进行了建模，并开发了离线和实时仿真模型。对控制器进行了调试并在MATLAB/Simulink中将它与数个测试案例通过离线仿真在开发的测试系统中进行了测试。所有模型都被调整并转换为Opal-RT实时对象，并对数个测试案例进行了仿真。改进的控制器仿真结果与传统控制的仿真结果进行了对比。9 [7 |$ |2 c- H+ i, }; M3 m* s
http://opal-rt.com/technical-document/development-calibration-and-simulation-generic-vsc-hvdc-high-level-controls-dc-gr - _4 X5 C- @; s* gabbr_c1f7e2cd87b51a2af8e2d8446ae37a6c.rar(1.69 MB, 下载次数: 0)
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发表于 2014-11-12 10:57:22
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