A Novel Hierarchical Section Protection Based on the Solid State Transformer for the Future Renewable Electric Energy Delivery and Management (FREEDM) System
A Novel Hierarchical Section Protection Based on the Solid State Transformer for the Future Renewable Electric Energy Delivery and Management (FREEDM) System
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DOI：
10.1109/tsg.2012.2207412
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发表时间：
2013-06
影响因子：
9.6
通讯作者：
P. Tatcho;Hui Li-;Yu Jiang;L. Qi
中科院分区：
文献类型：
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作者：
P. Tatcho;Hui Li-;Yu Jiang;L. Qi
保护方案在任何电网中的有效性对供电的可靠性都是至关重要的。FREEDM系统的主要目标之一是提高终端用户的供应可靠性。然而，传统的保护方法，包括过电流保护、顺序元件保护和大差动区保护，由于几个原因不适合该系统，本文将对这些原因进行解释。提出了一种新的保护策略。该保护方案不仅利用了系统配置，而且主要利用了固态变压器的能力和设计，以最大限度地减少成功的保护策略所需的任何电路和通信。为了验证所提出的保护方案，利用实时数字仿真器(RTDS)对FREEDM系统进行了建模。为了验证所提出的保护方案，进行了硬件在环(HIL)测试。
The effectiveness of a protection scheme in any power grid is essential to the reliability of the supply. One of the main goals of the FREEDM systems is to increase supply reliability to end users. However, traditional protection methods, including over current, sequential components, and wide differential area protection, are not suitable for this system for several reasons that will be explained in the paper. A new protection strategy is presented in this paper. This protection scheme takes advantage not only of the system configuration but mostly of the solid state transformer capability and design to minimize any circuit and communication that are needed for a successful protection strategy. A real time digital simulator (RTDS) is used to model a sample FREEDM system in order to verify the proposed protection scheme. Hardware-in-the-loop (HIL) testing was performed to verify the proposed protection scheme.