| 引用本文: | 吴熙,王亮,陈曦,等.UPFC与IPFC提升系统输电能力比较研究[J].电力系统保护与控制,2020,48(9):128-134.[点击复制] |
| WU Xi,WANG Liang,CHEN Xi,et al.Comparative research on UPFC and IPFC enhancing transmission capability of a power system[J].Power System Protection and Control,2020,48(9):128-134[点击复制] |
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| 摘要: |
| 随着电力系统负荷及网架的日益发展，由系统潮流分布不均而引起的输电阻塞问题越来越严重，极大地制约了电力系统的输电能力与效率。利用FACTS设备提升电力系统输电能力相较于传统方案具有占地面积小、可控性高等多方面的优势。UPFC与IPFC作为先进的第三代FACTS装置，在潮流调控方面均有着突出的应用优势。因此有必要对两者在提升系统输电能力方面进行技术经济比较研究，用以指导实际工程的解决方案选择。首先基于附加功率注入法分别对UPFC及IPFC进行稳态建模，推导了其数学表达式。之后以江苏南通西北片电网为例，将所建模型应用于实际电力系统，计算结果显示两者均能大幅提升系统输电能力以及安全可靠性。最后在多种工况下对这两种解决方案进行了技术经济比较分析，结果表明IPFC相较于UPFC而言在潮流调控方面的作用更为全面与突出。 |
| 关键词: 统一潮流控制器 线间潮流控制器 功率注入模型 系统输电能力 |
| DOI：10.19783/j.cnki.pspc.190805 |
| 投稿时间：2019-07-11修订日期：2019-11-05 |
| 基金项目:国家电网公司科技项目资助(SGJSJX00YJJS 1800739);国家自然科学基金(51407028) |
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| Comparative research on UPFC and IPFC enhancing transmission capability of a power system |
| WU Xi,WANG Liang,CHEN Xi,LIU Yu,TAO Jiagui,TENG Song,CHEN Xuan |
| (School of Electric Engineering, Southeast University, Nanjing 210096, China;Department of Science and Technology, State Grid Jiangsu Electric Power Co., Ltd., Nanjing 210024, China;Maintenance Branch of State Grid Jiangsu Electric Power Co., Ltd., Nanjing 211102, China) |
| Abstract: |
| With the development of power system load and grid structure, the transmission congestion caused by the uneven distribution of power flow becomes more and more serious, which greatly restricts the transmission capacity and efficiency of power system. Compared with the traditional scheme, FACTS has many advantages, such as small space, high controllability, etc. As the advanced third generation FACTS, UPFC and IPFC have advantages in power flow regulation. Therefore, it is necessary to study the technology and economy of the two in improving the transmission capacity of the system, so as to guide the selection of practical engineering solutions. First, based on the additional power injection method, the models of UPFC and IPFC are established. Then, taking the northwest power grid of Nantong as an example, calculations show that both can greatly improve the transmission capacity and safety reliability of the system. Finally, technical and economic solutions are explored under various working conditions. IPFC plays a more comprehensive and prominent role than UPFC in power flow regulation. This work is supported by Science and Technology Project of State Grid Corporation of China (No. SGJSJX00YJJS 1800739) and National Natural Science Foundation of China (No. 51407028). |
| Key words: unified power flow controller interline power flow controller power injection model transmission capability of power system |
