Demand-Side Management Program with A New Energy Strategy for Photovoltaic and Wind Power Generation System in Viet Nam

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International Journal of Research and Scientific Innovation (IJRSI) | Volume V, Issue X, October 2018 | ISSN 2321–2705

Demand-Side Management Program with A New Energy Strategy for Photovoltaic and Wind Power Generation System in Viet Nam

Nguyen Minh Cuong1, Thai Quang Vinh2, Le Tien Phong3

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1, 3Electrical Faculty, Thai Nguyen University of Technology, Thai Nguyen, Viet Nam
2Institute of Information Technology, Vietnam Academy of Science and Technology, Hanoi
Corresponding Author: Le Tien Phong

Abstract— This paper proposes a new energy strategy to distribute energy at each bus in Viet Nam electric power system with the participation of photovoltaic and wind power generations. A structure for this system is also constructed including some main blocks: power circuit, forecasting center and center of measurement, dispatch and control. Each block closely works together with others and energy storage to have a balance power at any time in whole considered cycle. A demand-side management algorithm is designed corresponding to a case study that has energy from the generations smaller than consumed energy of electric load in whole time stages. In this algorithm, the deficient energy in stages having high and medium electric price levels can be bought from the electric power system to charge to the energy storage in the stage having low electric price level to reduce the economic function. Simulation results were carried out by the MATLAB 2017a software to show the feasibility of the demand-side management program to re-dispatch power flows in whole system and bring out high economic effectiveness.

Index Terms— Demand-dide management, dispatch power flow, photovoltaic power generation, wind power generation, hybrid system.

I. INTRODUCTION

Renewable energy is considered as a effective solution to prolong life on earth when traditional energy sources become to exhaust. Although there are many types of renewable sources, photovoltaic power generation (PVG) and wind power generation (WG) are the most potential sources because they can be installed anywhere in the world and are constantly present during the day. They can be combined together into a hybrid generation system to support each other and enhance the ability to supply electricity because WG can generate electricity at any time while PVG can only generate it when daylight is present. With the combination of power converters, control and communication techniques and energy storage (ES), power flows in whole system can be dispatched and operated by using the model of smart grid via a demand-side management (DSM) program.