| 引用本文: | 张保会,郝治国,Zhiqian BO.智能电网继电保护研究的进展(三)——保护功能的发展[J].电力自动化设备,2010,(3):0 |
| .Development of relay protection for smart grid(3):development of protection function[J].Electric Power Automation Equipment,2010,(3):0 |
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| 摘要: |
| 智能电网要求对被保护的设备能够预警,并保证故障切除后的系统坚强和高安全性。介绍了智能电网条件下继电保护所起作用的发展,提出了将变压器状态检测与主保护跳闸功能一体化的预保护、保护的原理与技术;为防止连锁过载跳闸,给出了将单条线路的过负荷保护发展为输电断面安全性保护的原理与技术;为使有多条线路互联的系统失步解列后的子系统中不平衡功率最小、子系统内不再失步,构建了以解列策略主站协调优化、解列继电器协同动作的失步解列控制系统。 |
| 关键词: 智能电网 状态检测 继电保护一体化 输电断面安全性保护 失步解列系统 |
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| Development of relay protection for smart grid(3):development of protection function |
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Zhiqian BO
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| Abstract: |
| The early warning to protected device and the post-fault system robustness and high secure are required by smart grid. The development of protection functions for smart grid is introduced. The principle and technique of integrated state detection and main protection is presented for transformer. The principle and technique of transmission section security protection based on line overload protection is also presented to avoid the cascaded overload trips. In order to make the unbalanced energy of subsystem smaller after system disconnection to maintain the in-step condition within the subsystem，an islanding control system is constructed，the master station of which is responsible for the coordination and optimization while the islanding relays are responsible for the coordinated actions. |
| Key words: smart grid state detection relay protection integration transmission section protection islanded system |
