Demand-Side Management in Microgrids with the Presence of Renewable Sources in Vietnam
Science Journal of Circuits, Systems and Signal Processing
Volume 8, Issue 1, June 2019, Pages: 1-10
Received: Jun. 21, 2019;
Accepted: Jul. 11, 2019;
Published: Jul. 26, 2019
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Nguyen Minh Cuong, Electrical Faculty, Thai Nguyen University of Technology, Thai Nguyen City, Vietnam
Nguyen Thi Dieu Huyen, Department of Testing and Quality assurance, Thai Nguyen University of Technology, Thai Nguyen City, Vietnam
Thai Quang Vinh, Institute of Information Technology, Vietnam Academy of Science and Technology, Hanoi City, Vietnam
This paper proposes a general demand-side management strategy in microgrids with the presence of renewable sources. To apply proposed above strategy by electric price in Vietnam, it must be participated of photovoltaic and wind power generations and energy storage. An algorithm applied for this program is created by comparing amount of energy generating from generations and consumed by electric load. Amount of energy that must be bought from the grid or sells to it can be calculated by dispatching energy between hours that have the lowest electric price level and hours that have the medium and highest electric price levels. A case study that energy generating from generations is not equal energy consumed by load in hours having the medium and highest electric price levels is made more detailed in this paper. Algorithms to dispatch energy at any time to achieve the purpose of not buying electricity from the grid in above hours basing on electric price levels, efficiency of energy conversion, rated capacity of units and analysis of power flows in whole system. Results providing from algorithms are energy that must be bought from the grid or sell to the grid, instantaneous capacity of energy storage. Simulation results corresponding to this case study carried out in MATLAB 2018a present the meaning and feasibility of proposed contents.
Nguyen Minh Cuong,
Nguyen Thi Dieu Huyen,
Thai Quang Vinh,
Demand-Side Management in Microgrids with the Presence of Renewable Sources in Vietnam, Science Journal of Circuits, Systems and Signal Processing.
Vol. 8, No. 1,
2019, pp. 1-10.
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