Distributed energy resources (DERs) are any energy resources in the electrical distribution systems, which can produce electricity, consume or store energy in a controlled manner, or be utilized to improve energy efficiency. They are typically smaller in scale than the traditional large-generation facilities. DERs include distributed generation units, energy storage facilities including electric vehicles, and controlled loads. Power electronic technologies, as the focus of this Special Issue, are critical to enabling the integration, protection, performance, and interoperability of DERs in power systems. DERs are rapidly growing in the global electricity market and are entering into power systems as an integral part of the system thanks to the increasing penetration of renewable energy and energy storage units. The technologies for DERs have advanced significantly over the past two decades and so have the DER interconnection standards. In addition to meeting the requirements for power system specifications, safety, and protection, DERs are required to support grid operation in recently developed interconnection standards by providing functions of voltage and frequency ride-throughs, voltage and frequency regulations, or inertial responses.

中文翻译：

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客座社论：分布式能源电力电子特刊

分布式能源（DER）是配电系统中可以产生电力、以受控方式消耗或存储能源或用于提高能源效率的任何能源。它们的规模通常小于传统的大型发电设施。分布式能源包括分布式发电机组、包括电动汽车在内的储能设施和受控负载。电力电子技术作为本期特刊的焦点，对于实现电力系统中分布式能源的集成、保护、性能和互操作性至关重要。由于可再生能源和储能装置的渗透率不断提高，分布式能源在全球电力市场中迅速增长，并作为系统的组成部分进入电力系统。过去二十年来，分布式能源技术取得了显着进步，分布式能源互连标准也取得了显着进步。除了满足电力系统规范、安全和保护的要求外，最近制定的互联标准还要求分布式能源通过提供电压和频率穿越、电压和频率调节或惯性响应功能来支持电网运行。