| 引用本文: | 石磊,周浩,陆兆沿,等.变压器保护子机的信息环网异常解决方案[J].电力系统保护与控制,2019,47(22):176-181. |
| SHI Lei,ZHOU Hao,LU Zhaoyan,et al.Information ring network anomaly solution for transformer sub-protection[J].Power System Protection and Control,2019,47(22):176-181 |
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| 摘要: |
| 就地化分布式变压器保护采用子机模式，通过环网传输交流采样、开入量及参数等信息，环网的信息异常将直接影响保护装置的可靠运行。为了解决各种环网异常情况下变压器保护装置不正确动作的问题，以220 kV变压器保护子机配置模式为例，分析了环网可能存在的各类异常情况。并有针对性地提出处理原则及解决方案，基于该方案搭建测试环境，验证了方案的合理性和可行性。该环网异常方案可有效提高就地化分布式变压器保护装置运行的稳定性和可靠性。 |
| 关键词: 变压器保护 分布式 就地化 环网异常 |
| DOI：10.19783/j.cnki.pspc.181561 |
| 分类号: |
| 基金项目:国家电网公司总部科技项目资助(JBB17201600240) |
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| Information ring network anomaly solution for transformer sub-protection |
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SHI Lei1,ZHOU Hao1,LU Zhaoyan1,LI Zhiling2,SONG Haitao2
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(1. CYG SUNRI CO., LTD., Shenzhen 518057, China;2. Baotou Power Supply Bureau, Inner Mongolia Power (Group) Co., Ltd., Baotou 014000, China)
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| Abstract: |
| The localized distributed transformer protection adopts the sub-machine mode, and transmits information such as AC sampling, input and parameters through the ring network. The information abnormality of the ring network will directly affect the reliable operation of the protection devices. In order to solve the problem that the transformer protection device does not operate correctly under various abnormal conditions of the ring network, the 220 kV transformer protection sub-machine configuration mode is taken for an example to analyze various abnormal situations that may exist in the ring network and the processing principles and solution are proposed. Based on the solution, the test environment is built and the rationality and feasibility of the solution are verified. The ring network anomaly solution can effectively improve the stability and reliability of the operation of the localized distributed transformer protection devices. This work is supported by Science and Technology Project of State Grid Corporation of China (No. JBB17201600240). |
| Key words: transformer protection distributed localization ring network anomaly |
