| 分频输电系统的实验研究 |
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| 引用本文： | 王锡凡,曹成军,周志超. 分频输电系统的实验研究[J]. 中国电机工程学报, 2005, 25(12): 6-11 |
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| 作者姓名： | 王锡凡 曹成军 周志超 |
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| 作者单位： | 西安交通大学电气工程学院,陕西省,西安市,710049 |
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| 基金项目： | 国家重点基础研究专项经费项目(2004CB217905)。~~ |
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| 摘 要： | 分频输电是一种非常有竞争力的远距离输电方式。该文介绍了分频输电系统实验装置的构成和初步实验结果。该实验首次利用交．交变频器作为倍频器，将50/3Hz电能转换为50Hz电能向工频系统送电，成功地实现了一种新型(FACTS)柔性交流输电装置。文中还介绍了分频系统和工频系统的并网情况，分析了分频输电系统实验的波形、效率、功率因数等相关数据。实验表明：对于一回1200km的500kV输电线路，利用分频输电系统可以使其输送能力达到2000MW，证明了这种新型FACTS装置的巨大应用潜力；分频输电在750kV及以下电压等级的实际工程中应用不存在技术上的困难。
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| 关 键 词： | 分频输电系统 实验研究 500kV输电线路 FACTS装置 750kV 输电方式 实验装置 电能转换 输电装置 系统实验 相关数据 功率因数 输送能力 应用潜力 电压等级 竞争力 倍频器 变频器 工频 并网 |
| 文章编号： | 0258-8013(2005)12-0006-06 |
EXPERIMENT ON FRATIONAL FREQUENCY TRANSMISSION SYSTEM |
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| WANG Xi-fan,CAO Cheng-jun,ZHOU Zhi-chao. EXPERIMENT ON FRATIONAL FREQUENCY TRANSMISSION SYSTEM[J]. Proceedings of the CSEE, 2005, 25(12): 6-11 |
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| Authors: | WANG Xi-fan CAO Cheng-jun ZHOU Zhi-chao |
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| Abstract: | The fractional frequency transmission system (FFTS) is a very promising long distance transmission approach. The paper introduces the experimental complex of FFTS and some elementary experiment results. The experiment uses the phase-controlled cycloconverter as the frequency tripler, stepping up 50/3Hz electricity into 50Hz electricity and supplying it to the commercial grid. Thus a new kind of flexible AC transmission system is successfully established in this experiment. The experiment results show that for a 1200km/500kV transmission line can transfer as much as 2000MW electric power when employing such FFTS system. The experiment results and synchronizing process of 50/3Hz system with 50Hz system are introduced and analyzed in the paper. The experiment also illustrates that there is no essential difficulty to realize the fractional frequency transmission system in the engineering practice. |
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| Keywords: | Power system New type of transmission Transmission capability Fractional frequency Flexible AC transmission system Cycloconverter |
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