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首页> 外文会议>IEEE/IAS Industrial Commercial Power Systems Tehcnical Conference >Impacts of grounding configurations on responses of ground protective relays for DFIG-based WECSs-Part II: High-impedance ground faults
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Impacts of grounding configurations on responses of ground protective relays for DFIG-based WECSs-Part II: High-impedance ground faults

机译：接地配置对基于DFIG的WECS的接地保护继电器的响应的影响-第二部分：高阻抗接地故障

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Ground faults are one of the major disruptions of the safety, stability, and economic operation of doubly fed induction generator (DFIGs)-based wind energy conversion systems (WECSs). On one hand, the minimization of possible damages caused by ground faults can be achieved by the accurate and reliable detection and identification of these faults. On the other hand, the fast response to ground faults is highly influenced by the grounding configuration, especially in cases of high impedance ground faults. This paper investigates the influences of grounding configurations on the responses of ground protective devices used in DFIGs-based WECSs when experiencing high impedance ground faults. The open (no-grounding), high-resistance, low-resistance, and solid grounding configurations are investigated in this paper. The influences of the grounding configurations are observed through the ability of protective devices to detect, identify, and respond to high impedance ground faults occurring in DFIG-WECSs. Test results show that the responses of ground protective devices, used in DFIG-based WECSs, can be sensitive to the grounding configuration, as well as the fault impedance.
机译：接地故障是基于双馈感应发电机（DFIG）的风能转换系统（WECS）的安全性，稳定性和经济运行的主要破坏之一。一方面，可以通过对这些故障的准确，可靠的检测和识别来最大程度地减少由接地故障引起的可能损坏。另一方面，对接地故障的快速响应受接地配置的影响很大，尤其是在高阻抗接地故障的情况下。本文研究了接地配置对基于DFIG的WECS中使用的接地保护设备在遇到高阻抗接地故障时的响应的影响。本文研究了开路（不接地），高电阻，低电阻和牢固的接地配置。通过保护设备检测，识别和响应DFIG-WECS中发生的高阻抗接地故障的能力，可以观察到接地配置的影响。测试结果表明，在基于DFIG的WECS中使用的接地保护设备的响应可能对接地配置以及故障阻抗敏感。

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