变压器式可控电抗器控制绕组参数计算与优化
发布时间：2018-10-30 17:56
【摘要】：近年来,随着高电压长距离输电线路的不断建设和发展,无功平衡和电压控制的问题日渐突出。CRT(Controllable Reactor of Transformer Type,变压器式可控电抗器)是一种输出容量连续平滑调节的新型无功补偿装置,能够实现线路无功的快速补偿,并维持电网电压稳定,因其性能优良,优点突出,近年来得到广泛的关注与研究。CRT主要由一个工作绕组,多级控制绕组以及与控制绕组本身串联的限流电感和晶闸管阀组构成。控制绕组作为CRT的重要组成部分,其结构和成本影响着CRT整体的工作特性、结构复杂度和制造成本等方面。因此,本文以CRT为研究对象,主要开展以下几方面的研究,包括CRT控制绕组分级标准确定,多种工作模式下的控制绕组参数计算,控制绕组晶闸管阀组结构的确定以及CRT控制绕组参数的优化设计。具体内容如下:(1)基于CRT工作原理,对其主要组成部分、工作模式的分类和优缺点进行分析。根据以CRT谐波含有率作为控制绕组分级标准时存在的问题,结合电网对谐波的要求,确定以谐波电流有效值作为CRT新的控制绕组分级标准。(2)选取CRT三种典型的单支路工作模式为研究对象,对其各自工作原理进行详细分析,结合不同工作模式的特点,确定CRT控制绕组参数计算的方法。基于CRT新的控制绕组分级标准,推导得出三种单支路工作模式下的控制绕组级数和控制绕组电流的计算公式,并对不同工作模式下控制绕组级数大小进行比较。(3)通过分析CRT晶闸管阀组结构及其影响因素,确定晶闸管阀组结构参数(串联的反并联晶闸管级数和并联的反并联晶闸管级数)的计算公式,并基于此提出CRT晶闸管阀组结构设计的两种方法,分别为电压已知时晶闸管阀组结构设计方法和电流已知时晶闸管阀组结构设计方法。(4)在对不同工作模式控制绕组参数计算的基础上,为简化CRT绕组结构,降低其制造成本,本文以CRT控制绕组成本最小为优化目标,根据CRT晶闸管阀组结构的不同设计方法建立不同的控制绕组成本优化模型。选取遗传算法作为优化算法,基于MATLAB遗传算法工具箱对所建立的目标函数进行优化,并对优化结果进行对比分析。
[Abstract]:In recent years, with the continuous construction and development of high voltage and long distance transmission lines, the problems of reactive power balance and voltage control have become increasingly prominent in. CRT (Controllable Reactor of Transformer Type, Transformer controllable reactor (TRC) is a new type of reactive power compensation device with continuous and smooth regulation of output capacity. It can realize fast compensation of line reactive power and maintain the voltage stability of the power network because of its excellent performance and outstanding advantages. CRT is mainly composed of a working winding, a multi-stage control winding, a current-limiting inductance and a thyristor valve set in series with the control winding itself. As an important part of CRT, the structure and cost of control winding affect the overall working characteristics, structural complexity and manufacturing cost of CRT. Therefore, this paper takes CRT as the research object, mainly carries on the following research, including the CRT control winding classification standard determination, the control winding parameter calculation under various working modes, The structure of control winding thyristor valve group and the optimization design of CRT control winding parameters are discussed. The main contents are as follows: (1) based on the working principle of CRT, the main components, classification, advantages and disadvantages of the working mode are analyzed. According to the existing problems when CRT harmonic content rate is used as the grading standard of control windings, combined with the requirements of power grid for harmonics, The effective value of harmonic current is chosen as the new control winding classification standard of CRT. (2) three typical single branch working modes of CRT are selected as the research object, and their working principles are analyzed in detail, and the characteristics of different working modes are combined. The calculation method of CRT control winding parameters is determined. Based on the new control winding classification standard of CRT, the calculation formulas of control winding series and control winding current under three single branch working modes are derived. The series of control windings in different working modes are compared. (3) the structure of CRT thyristor valve group and its influencing factors are analyzed. The calculation formulas of the structural parameters of the thyristor valve group (the series of thyristors in series and the series of thyristors in parallel connection) are determined. Based on this, two methods for the structural design of the CRT thyristor valve group are put forward. The design methods of thyristor valve group structure when voltage is known and thyristor valve group structure design method when current is known respectively. (4) on the basis of calculating parameters of control windings in different working modes, the structure of CRT windings is simplified. In order to reduce the manufacturing cost, the cost optimization model of CRT control winding is established according to the different design methods of CRT thyristor valve group. The genetic algorithm is selected as the optimization algorithm, and the objective function is optimized based on the MATLAB genetic algorithm toolbox, and the optimization results are compared and analyzed.
【学位授予单位】：兰州交通大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM47
本文编号：2300748
[Abstract]:In recent years, with the continuous construction and development of high voltage and long distance transmission lines, the problems of reactive power balance and voltage control have become increasingly prominent in. CRT (Controllable Reactor of Transformer Type, Transformer controllable reactor (TRC) is a new type of reactive power compensation device with continuous and smooth regulation of output capacity. It can realize fast compensation of line reactive power and maintain the voltage stability of the power network because of its excellent performance and outstanding advantages. CRT is mainly composed of a working winding, a multi-stage control winding, a current-limiting inductance and a thyristor valve set in series with the control winding itself. As an important part of CRT, the structure and cost of control winding affect the overall working characteristics, structural complexity and manufacturing cost of CRT. Therefore, this paper takes CRT as the research object, mainly carries on the following research, including the CRT control winding classification standard determination, the control winding parameter calculation under various working modes, The structure of control winding thyristor valve group and the optimization design of CRT control winding parameters are discussed. The main contents are as follows: (1) based on the working principle of CRT, the main components, classification, advantages and disadvantages of the working mode are analyzed. According to the existing problems when CRT harmonic content rate is used as the grading standard of control windings, combined with the requirements of power grid for harmonics, The effective value of harmonic current is chosen as the new control winding classification standard of CRT. (2) three typical single branch working modes of CRT are selected as the research object, and their working principles are analyzed in detail, and the characteristics of different working modes are combined. The calculation method of CRT control winding parameters is determined. Based on the new control winding classification standard of CRT, the calculation formulas of control winding series and control winding current under three single branch working modes are derived. The series of control windings in different working modes are compared. (3) the structure of CRT thyristor valve group and its influencing factors are analyzed. The calculation formulas of the structural parameters of the thyristor valve group (the series of thyristors in series and the series of thyristors in parallel connection) are determined. Based on this, two methods for the structural design of the CRT thyristor valve group are put forward. The design methods of thyristor valve group structure when voltage is known and thyristor valve group structure design method when current is known respectively. (4) on the basis of calculating parameters of control windings in different working modes, the structure of CRT windings is simplified. In order to reduce the manufacturing cost, the cost optimization model of CRT control winding is established according to the different design methods of CRT thyristor valve group. The genetic algorithm is selected as the optimization algorithm, and the objective function is optimized based on the MATLAB genetic algorithm toolbox, and the optimization results are compared and analyzed.
【学位授予单位】：兰州交通大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM47
【参考文献】
相关期刊论文 前10条
1 田铭兴;柳轶彬;尹健宁;赵茜茹;;变压器式可控电抗器限流电感计算[J];电工技术学报;2017年02期
2 田铭兴;柳轶彬;郭毅娜;李进;;基于多绕组调节模式的变压器式可控电抗器谐波电流优化[J];电网技术;2015年10期
3 龚岩;田铭兴;;变压器式可控电抗器的晶闸管阀组选型[J];高压电器;2015年08期
4 赵茜茹;田铭兴;卢超慧;;变压器式可控电抗器的电磁暂态建模与仿真分析[J];兰州交通大学学报;2015年01期
5 尹健宁;田铭兴;尹国翰;柳轶彬;;磁集成结构变压器式可控电抗器绕组电流仿真[J];电源技术;2014年11期
6 尹健宁;田铭兴;柳轶彬;;变压器式可控电抗器磁集成结构设计与仿真分析[J];电网技术;2014年11期
7 田铭兴;尹健宁;柳轶彬;原东f;;基于磁集成技术的变压器式可控电抗器的结构设计与分析[J];高电压技术;2014年10期
8 田铭兴;柳轶彬;尹健宁;安潇;;变压器式可控电抗器绕组电流与触发角的关系[J];电力自动化设备;2014年08期
9 田铭兴;杨秀川;原东f;;多并联支路型可控电抗器短路电抗对支路电抗和电流的影响[J];电工技术学报;2014年07期
10 尹健宁;田铭兴;王果;柳轶彬;原东f;;磁集成技术在变压器式可控电抗器中的应用[J];高压电器;2014年05期
相关博士学位论文 前3条
1 张宇;新型变压器式可控电抗器技术研究[D];华中科技大学;2009年
2 周腊吾;新型特高压可控电抗器的理论及应用[D];湖南大学;2008年
3 王竹荣;遗传算法及其在特种变压器优化设计中的应用研究[D];西安理工大学;2005年
相关硕士学位论文 前3条
1 龚岩;变压器式可控电抗器损耗与温升研究[D];兰州交通大学;2016年
2 刘言菊;磁控电抗器CAD系统及其优化设计[D];兰州交通大学;2012年
3 王延伟;基于遗传算法的铁心电抗器设计及相关问题研究[D];哈尔滨理工大学;2012年
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