| 引用本文: | 王增平,林一峰,王 彤,郑博文.电力系统继电保护与安全控制面临的挑战与应对措施[J].电力系统保护与控制,2023,51(6):10-20.[点击复制] |
| WANG Zengping,LIN Yifeng,WANG Tong,ZHENG Bowen.Challenges and countermeasures to power system relay protection and safety control[J].Power System Protection and Control,2023,51(6):10-20[点击复制] |
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| 摘要: |
| 高比例波动性新能源接入电网、交直流特高压远距离输电以及大量电力电子设备的应用给现有电网继电保护和安全控制带来严峻挑战。电网发展对现有技术带来困难的同时也对我国长期以来形成的电力系统“三道防线”安全防御体系提出了更高的要求。首先，详细分析了电力系统继电保护与安全控制系统在新型电网环境下面临的各种挑战及其形成原因。然后，归纳总结了能够应对这些挑战的有利环境基础与技术条件，并为技术发展与科学研究指明了方向。最后，探讨研究了新型保护的工作模式、保护新原理、保护信息共享、保护与电网安全控制的协同技术、电网预防性控制功能，并建立了实现信息共享且能良好适用新技术的“区域协同+分布自治”新型电力系统安全防御体系。 |
| 关键词: 电网安全 继电保护 多元信息 协同控制 |
| DOI：10.19783/j.cnki.pspc.236103 |
| 投稿时间：2022-10-20修订日期：2023-02-09 |
| 基金项目:国家自然科学基金项目资助(U22B6006)；国家电网公司总部科技项目资助(5100-202199529A-0-5-ZN) |
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| Challenges and countermeasures to power system relay protection and safety control |
| WANG Zengping,LIN Yifeng,WANG Tong,ZHENG Bowen |
| (State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources
(North China Electric Power University), Beijing 102206, China) |
| Abstract: |
| The high proportion of volatile renewable energy sources connected to the power grid, the long-distance transmission of AC and DC ultra-high voltage and the application of bulk power electronic devices bring serious challenges to existing power grid relay protection and safety control. They also put forward higher requirements for the "three defense lines" layout which has been established in power systems for decades. First, the challenges faced by the power system relay protection and security control system in the new grid environment and their causes are analyzed in detail. Then, this paper summarizes the favorable environmental basis and technical conditions that can meet these challenges, and points out the direction for technological development and scientific research. Finally, the working mode of the new protection, the new protection principle, the protection information sharing, the cooperation technology between the protection and the power grid security control, and the preventive control functions of the power grid are discussed and studied. A new power system security defense system of "regional cooperation+distributed autonomy" is established, one which realizes information sharing and can well apply the new technology. |
| Key words: power grid security relay protection multi-information cooperative control |
