Abstract This paper proposes a novel scheme to protect a Wind Generator (WG) with Energy Storage Systems (ESSs). In the scheme, data are dealt with in an iterative way to obtain the relay coordination considering both generator operating modes: grid connected and island. The proposition relies on conventional protection functions adapted to the operational system requirements. A set of well-known protection functions (under-voltage, over-current, differential and unbalance) operating together in an innovative arrangement, was the main objective of this research. In order to validate the proposed scheme, a Wind Energy Conversion System (WECS) with a Vanadium Redox Flow Battery (VRFB) as an EES was implemented in a real time digital simulator (RTDS®) to perform hardware-in-the-loop simulations. The simulation system consisted of a Wind Generator with grounded stator connected to the system through a DC link in order to investigate its behavior subjected to internal and external faults. Very promising results considering the proposed scheme are presented.

中文翻译：

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考虑并网和孤岛模式运行的 ESS 风力发电机保护

摘要 本文提出了一种用储能系统 (ESS) 保护风力发电机 (WG) 的新方案。在该方案中，考虑两种发电机运行模式：并网和孤岛，以迭代方式处理数据以获得中继协调。该提议依赖于适应操作系统要求的常规保护功能。本研究的主要目标是一组众所周知的保护功能（欠压、过流、差动和不平衡）以创新的方式协同工作。为了验证所提出的方案，在实时数字模拟器 (RTDS®)​​ 中实施了带有钒氧化还原液流电池 (VRFB) 作为 EES 的风能转换系统 (WECS) 以执行硬件在环模拟. 仿真系统由一个带有接地定子的风力发电机组成，通过直流链路连接到系统，以研究其在内部和外部故障下的行为。考虑到所提出的方案，提出了非常有希望的结果。