Currently, distributed generation (DG) based on conventional energy sources and renewable energy sources (RESs) have played a vital role throughout the world. Energy policies are promoting distributed energy resources such as energy efficiency, increasing the number of DG installations and RESs planning. It can be observed that the load growth rates of countries are rapidly increasing. However, uncoordinated management of these alternative energy sources can put a severe stress on the power grid. To overcome from this problem, DGs are the best options for managing the need of energy. In this work, the robustness, sustainability and reliability of DG has been discussed with various aspects including different contingency scenario. Contingency analysis of a power system is a major action in power system planning and operation. This review covers the recent works done in the area of integration of DGs with various scenarios in electrical power systems. The main objective of this work is to study how to achieve a better integration of flexible demand as demand response, demand side management (DSM) with DGs and make the grid proficient. It then reviews the key results in this field and some of the interesting research challenges can be addressed are also acknowledged.

当前，基于常规能源和可再生能源（RES）的分布式发电（DG）在世界范围内发挥着至关重要的作用。能源政策正在促进能源效率，分布式发电装置的数量和可再生能源发电计划等分布式能源的使用。可以看出，各国的负荷增长率正在迅速增加。但是，对这些替代能源的不协调管理会给电网带来严重压力。为了克服这个问题，DG是管理能源需求的最佳选择。在这项工作中，DG的健壮性，可持续性和可靠性已从各个方面进行了讨论，包括不同的应急方案。电力系统的权变分析是电力系统规划和运行中的主要动作。这篇综述涵盖了将DG与电力系统中的各种方案集成在一起的最新工作。这项工作的主要目的是研究如何更好地整合灵活需求，如需求响应，需求侧管理（DSM）与DG，以及如何使电网熟练。然后，它回顾了该领域的主要成果，并承认了一些可以解决的有趣研究挑战。