First proposed the concept of microgrid

A complete concept of micro-grid was proposed by American Association of Reliability Technology Solutions (CERTS). It was defined that microgrid is a system composed of microsources and loads, which can provide both electricity and thermal energy.

A microgrid, regarded as one of the cornerstones of the future smart grid, uses distributed generations and information technology to create a widely distributed automated energy delivery network. This paper presents a review of the microgrid concept, classification and control strategies.

Formed in 1999 [14], CERTS has been recognized as the origin of the modern grid-connected microgrid concept [15]. It envisioned a microgrid that could incorporate multiple DERs yet present itself to the existing grid as a typical customer or small generator, in order to remove perceived challenges to integrating DERs [12], [16], [17].

The concept of microgrid was first proposed in the USA. The US microgrid technology has been tested in the laboratory stage, and has established CERTS microgrid demonstration project, GE microgrid demonstration project, and other engineering projects.

The studies run on microgrid are classified in the two topics of feasibility and economic studies and control and optimization. The applications and types of microgrid are introduced first, and next, the objective of microgrid control is explained. Microgrid control is of the coordinated control and local control categories.

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What are the studies run on microgrid?

What is the nature of microgrid?

The nature of microgrid is random and intermittent compared to regular grid. Different microgrid structures with their comparative analyses are illustrated here. Different control schemes, basic control schemes like the centralized, decentralized, and distributed control, and multilevel control schemes like the hierarchal control are discussed.

What is microgrid control technology?

The microgrid control technology should be a brand new, scientific, and effective technology for regulating and controlling various distributed units in the power grid. It can switch the working status such as grid-connected operation and island operation according to the need.

Where are micro-grids developed?

Nowadays, both pilot and commercialized micro-grids have been developed in many countries and areas in the world. America first proposed the completed concept of micro-grid . The CERTS is main research organization of American micro-grid and supported from US Department of Energy and California Energy Commission.

What are microgrid control objectives?

The microgrid control objectives consist of: (a) independent active and reactive power control, (b) correction of voltage sag and system imbalances, and (c) fulfilling the grid's load dynamics requirements. In assuring proper operation, power systems require proper control strategies.

What is Microgrid modeling?

A microgrid modeling by applying actual environmental data, where the challenges and power quality issues in the microgrid are observed. The compensation methods vs. these concerns are proposed through different control techniques, algorithms, and devices Proposing modern hybrid ESSs for microgrid applications.

First proposed the concept of microgrid