Decoupling Operation Mode of Controllable Reactor of Transformer Type
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摘要: 由于变压器式可控电抗器（controllable reactor of transformer type，CRT）各绕组之间存在电磁耦合，各控制绕组电流不能保持在其额定值，造成了绕组材料的浪费.为了解决该问题，基于多绕组工作模式的思想提出了解耦工作模式及其实现方案.首先，确定各绕组的额定电流后，根据解耦工作模式的特点，求出所需的限流电感；其次，根据各控制绕组额定电流将调节范围分级，在各级内对所有控制绕组电流进行离散；第三，基于CRT绕组电流计算的数学模型，对所有离散点逐点求解，得到使各控制绕组电流在达到其额定值后能保持恒定不变的触发角调节规律；最后，采用各控制绕组额定电流分别为9.16、11.59、24.52、51.85、109.64 A的CRT进行了仿真实验.结果表明，在解耦工作模式下，各控制绕组电流能保持在其额定值不变.Abstract: As there is an electromagnetic coupling between the windings of a controllable reactor of transformer type (CRT), the current passing through each control winding cannot be maintained at its rated value, causing a considerable waste of winding material. To solve this problem, a decoupling operation mode and its implementation scheme are presented, based on the idea of the multi-winding working mode. First, in accordance with the characteristics of the decoupling operation mode, the required current-limiting inductances are calculated, while the rated values of the winding current are given. Second, in accordance with the rated value of the current for each control winding, the regulating range is graded, and then the current of every control winding is discretized discretized in each grade. Third, based on the mathematical model for calculating the values of the winding current of a CRT, all discrete points are calculated step-by-step, and then the trigger angle regulating rule, which makes the control winding current constant after meeting the rated value, is obtained. Finally, a simulation experiment is conducted, by employing a CRT, for which the control windings rated values for the current are 9.16, 11.59, 24.52, 51.85 A, and 109.64 A respectively. The results show that the values of the control winding current are maintained at their rated values under the decoupling operation mode.
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图 3 顺次单支路工作模式下各控制绕组电流与工作绕组电流的关系
Figure 3. Relationship between the working winding current and control winding current under sequential single branch operation mode
图 4 解耦工作模式下各控制绕组电流与工作绕组电流的关系
Figure 4. Relationship between the working winding current and control winding current under the decoupling operation mode
图 5 各控制绕组的触发角随工作绕组电流的变化曲线
Figure 5. Curve for the variation of the trigger angle of control winding with the current of the working winding
图 6 各控制绕组电流随工作绕组电流的变化曲线
Figure 6. Curve for the variation of the current of control winding with current of working winding
表 1 关键离散点处各控制绕组电流和工作绕组电流
Table 1. Control winding current and the working winding current at key points
A 电流 离散点 I1(0) I1(1) I1(2) I1(3) I1(4) I1(5) I2 0 9.16 9.16 9.16 9.16 9.16 I3 0 0 11.59 11.59 11.59 11.59 I4 0 0 0 24.52 24.52 24.52 I5 0 0 0 0 51.85 51.85 I6 0 0 0 0 0 109.64 I1 2.03 11.06 22.62 47.06 98.73 207.96 
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表 2 关键离散点处触发角和工作绕组电流
Table 2. Trigger angles and the working winding current at key points
(°) 触发角 离散点 I1(0) I1(1) I1(2) I1(3) I1(4) I1(5) α2 90.00 29.15 27.04 22.81 14.79 0 α3 90.00 90.00 28.30 23.82 15.41 0 α4 90.00 90.00 90.00 26.10 16.76 0 α5 90.00 90.00 90.00 90.00 18.98 0 α6 90.00 90.00 90.00 90.00 90.00 0 I1/A 2.03 11.06 22.62 47.06 98.73 207.96
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孙玉娇, 周勤勇, 申洪.未来中国输电网发展模式的分析与展望[J].电网技术, 2013, 37(7):1929-1935. http://d.old.wanfangdata.com.cn/Periodical/dwjs201307023SUN Yujiao, ZHOU Qinyong, SHEN Hong. Analysis and prospect on development patterns of China's power transmission network in future[J]. Power System Technology, 2013, 37(7):1929-1935. http://d.old.wanfangdata.com.cn/Periodical/dwjs201307023 秦晓辉, 郭强, 周勤勇, 等.一种无功平衡与临界潮流快速分析方法及其在特高压可控高抗需求分析中的应用[J].中国电机工程学报, 2013, 33(19):102-111. http://d.old.wanfangdata.com.cn/Periodical/zgdjgcxb201319013QIN Xiaohui, GUO Qiang, ZHOU Qinyong, et al. Fast analysis method of reactive power balancing and critical power flow andapplication to study controllable shunt reactors requirement in UHV grid[J]. Proceedings of the CSEE, 2013, 33(19):102-111. http://d.old.wanfangdata.com.cn/Periodical/zgdjgcxb201319013 周沛洪, 何慧雯, 戴敏, 等.可控电抗器在1000 kV交流紧凑型输电线路中的应用[J].高电压技术, 2011, 37(8):1832-1842. http://www.cqvip.com/QK/90990X/201108/38965696.htmlZHOU Peihong, HE Huiwen, DAI Min, et al. Application of controllable reactors to 1000 kV AC compact transmission line[J]. High Voltage Engineering, 2011, 37(8):1832-1842. http://www.cqvip.com/QK/90990X/201108/38965696.html 张丽, 徐玉琴.并联电抗器在超(特)高压电网中应用及发展[J].电力自动化设备, 2007, 27(4):75-78. doi: 10.3969/j.issn.1006-6047.2007.04.019ZHANG Li, XU Yuqin. Application and development of shunt reactors in EHV & UHV transmission lines[J]. Electric Power Automation Equipment, 2007, 27(4):75-78. doi: 10.3969/j.issn.1006-6047.2007.04.019 陈绪轩, 田翠华, 陈伯超, 等.多级饱和磁阀式可控电抗器谐波分析数学模型[J].电工技术学报, 2011, 26(3):57-64. http://d.old.wanfangdata.com.cn/Periodical/dgjsxb201103008CHEN Xuxuan, TIAN Cuihua, CHEN Bochao, et al. Mathematical model for harmonics analysis of the multi-stage saturable magnetic-valve controllable reactor[J]. Transactions of China Electrotechnical Society, 2011, 26(3):57-64. http://d.old.wanfangdata.com.cn/Periodical/dgjsxb201103008 孙媛媛, 尹志明, 郑伟杰, 等.晶闸管可控电抗器的谐波产生特性研究[J].电工技术学报, 2012, 27(7):267-273. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK201203518193SUN Yuanyuan, YIN Zhiming, ZHENG Weijie, et al. Study of the harmonic producing characteristics of the thyristor controlled reactors[J]. Transactions of China Electrotechnical Society, 2012, 27(7):267-273. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK201203518193 张宇, 陈乔夫, 李江红, 等.一种用于电气化铁道无功补偿的可控电抗器[J].电工技术学报, 2011, 26(8):166-171. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK201101698550ZHANG Yu, CHEN Qiaofu, LI Jianghong, et al. A controllable reactor for reactive power compensation of electrified railways[J]. Transactions of China Electrotechnical Society, 2011, 26(8):166-171. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK201101698550 刘海涛, 张卫星, 刘瑜, 等.变压器式可控电抗器的控制绕组无功容量分析[J].电力系统及其自动化学报, 2006, 18(6):70-72. doi: 10.3969/j.issn.1003-8930.2006.06.015LIU Haitao, ZHANG Weixing, LIU Yu, et al. Reactive power capacitance analysis for controllable shunting reactors of transformer type[J]. Proceedings of the CSU-EPSA, 2006, 18(6):70-72. doi: 10.3969/j.issn.1003-8930.2006.06.015 张宇.新型变压器式可控电抗器技术研究[D].武汉: 华中科技大学, 2009. 田铭兴, 原东昇, 安潇, 等.变压器式可控电抗器绕组电流分析[J].高电压技术, 2014, 40(1):269-274. http://d.old.wanfangdata.com.cn/Periodical/gdyjs201401040TIAN Mingxing, YUAN Dongsheng, AN Xiao, et al. Analysis on winding current of controllable reactor of transformer type[J]. High Voltage Engineering, 2014, 40(1):269-274. http://d.old.wanfangdata.com.cn/Periodical/gdyjs201401040 田铭兴, 尹建宁, 柳轶彬, 等.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, 40(10):3141-3149. http://d.old.wanfangdata.com.cn/Periodical/gdyjs201410028TIAN Mingxing, YIN Jianning, LIU Yibin, et al. Structure design and analysis of controllable reactor of transformer type based on magnetic integration technology[J]. High Voltage Engineering, 2014, 40(10):3141-3149. http://d.old.wanfangdata.com.cn/Periodical/gdyjs201410028 田铭兴, 付鹏宇, 黎宁昊.磁集成变压器式可控电抗器结构及其磁路与电路分析[J].西南交通大学学报, 2017, 52(4):774-781. doi: 10.3969/j.issn.0258-2724.2017.04.016TIAN Mingxing, FU Pengyu, LI Ninghao. Magnetically integrated structure for transformer-type controllable reactors:magnetic circuit and circuit analysis[J]. Journal of Southwest Jiaotong University, 2017, 52(4):774-781. doi: 10.3969/j.issn.0258-2724.2017.04.016 田铭兴, 柳轶彬, 尹健宁, 等.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, 34(8):122-127. doi: 10.3969/j.issn.1006-6047.2014.08.021TIAN Mingxing, LIU Yibin, YIN Jianning, et al. Relationship between CRT winding current and firing angle[J]. Electric Power Automation Equipment, 2014, 34(8):122-127. doi: 10.3969/j.issn.1006-6047.2014.08.021 田铭兴, 柳轶彬, 郭毅娜, 等.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, 39(10):93-99. http://d.old.wanfangdata.com.cn/Periodical/dwjs201510047TIAN Mingxing, LIU Yibin, GUO Yina, et al. Harmonic current optimization of controllable reactor of transformer type based on multi-winding regulation mode[J]. Power System Technology, 2015, 39(10):93-99. http://d.old.wanfangdata.com.cn/Periodical/dwjs201510047 TIAN Mingxing, LI Qingfu, LI Qunfeng. A controllable reactor of transformer type[J]. IEEE Transactions on PowerDelivery, 2004, 19(4):1718-1726. http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1339338 TIAN Mingxing. Analysis of transformers on the concept of elementary winding[J]. Electrical Engineering, 2007, 25(9):553-561. doi: 10.1007-s00202-006-0040-4/ 柳轶彬, 田铭兴, 尹建宁.变压器式可控电抗器的单绕组调节模式及谐波电流优化[J].电力自动化设备, 2015, 35(7):74-82. http://d.old.wanfangdata.com.cn/Periodical/dlzdhsb201507012LIU Yibin, TIAN Mingxing, YIN Jianning. Single-winding regulating mode and harmonic current optimization of controllable reactor of transformer type[J]. Electric Power Automation Equipment, 2015, 35(7):74-82. http://d.old.wanfangdata.com.cn/Periodical/dlzdhsb201507012 田铭兴.变压器式可控电抗器的基本理论研究[D].西安: 西安交通大学, 2005. -
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