AC DC microgrid demonstration project

Are microgrids AC or DC?

The aforementioned elements and issues mainly depend on the technology (AC or DC) of the distribution line of the microgrid. At the same time, because microgrids can be connected to AC and DC transmission systems ( Fig. 2 - ①) with different advantages and disadvantages (Section 3 ).

How can the dc microgrid demonstration project in Shangyu reduce impact?

Through comprehensive analysis, the DC microgrid demonstration project in Shangyu can adopt transformation and reconnection methods to combine the original medium voltage AC system with the medium voltage DC network. In this way, the project construction could upgrade the plant area and reduce the impact on the enterprise.

Where is dc microgrid demonstration project located?

The DC microgrid demonstration project in Shangyu is located in Shangyu economic development zone, Shaoxing city, Zhejiang province. The company is mainly engaged in the production of automotive plastic parts. The main DC loads in the field including injection molding machines, LED lightings and DC power supplies are distributed photovoltaics.

Why do we need a DC-based microgrid?

It therefore benefits us as consumers, thanks to the reduction of energy conversion losses associated with the transformation from AC to DC. CE.D.E.R.-CIEMAT, as a demonstration centre for the project, will have a DC-based hybrid microgrid where this idea can be integrated and operated in a real location.

Are there hybrid microgrids that combine AC and DC distribution lines?

There are also hybrid microgrids that combine AC and DC distribution lines that are controlled separately , , , . AC microgrids can present different distribution types: single phase ( Fig. 2 - ③, 3a), three phase without neutral ( Fig. 2 - ③, 3b) and three phase with neutral ( Fig. 2 - ③, 3c).

Are microgrids a good solution for distributed generation?

Microgrids are a suitable, reliable and clean solution to integrate distributed generation into the mains grid. Microgrids can present both AC and DC distribution lines. The type of distribution conditions the performance of distribution line and implies different features, advantages and disadvantages in each case.