TAILIEUCHUNG - An approach to balance state of charges of distributed batteries in virtual power plants of DC distribution network

This paper presents an approach to balance state of charge batteries. It is therefore to improve the lifetime of batteries in VPPs. According to the proposed method, the real-time SOC of DB will be tracking on the balancing SOC determined in VPP. | Vietnam Journal of Science and Technology 56 (1) (2018) 81-93 DOI: AN APPROACH TO BALANCE STATE OF CHARGES OF DISTRIBUTED BATTERIES IN VIRTUAL POWER PLANTS OF DC DISTRIBUTION NETWORK Nguyen Huu Duc Department of Renewable Energy, Faculty of Energy Technology, Electric Power University, 235-Hoang Quoc Viet, Ha Noi, Viet Nam Email: ducnh@ Received: 20 September 2016; Accepted for publication: 16 December 2017 Abstract. Small distributed energy sources could be aggregated to form a virtual power plant (VPP) in order to overall improve technical and market issues. VPPs should be composed of several distributed batteries (DB) to solve the problem of intermittency due to wind and solar. This paper presents an approach to balance state of charge batteries. It is therefore to improve the lifetime of batteries in VPPs. According to the proposed method, the real-time SOC of DB will be tracking on the balancing SOC determined in VPP. During operation, the difference of SOC among DBs will be shrunk and finally the share of exchange power among DB is equal. Moreover, the duration time to achieve the balancing SOC can be determined by adjusting the exponent parameter of SOC in the presented function. Keywords: droop control, virtual power plant, SOC, battery. Classification numbers: , . 1. INTRODUCTION With the strong growth of distributed renewable energy sources (DRES), virtual power plants have been considered an efficient solution to integrate such DRES. VPPs can facilitate integration of a large number of small-scale DRES [1-3]. Several VPPs have been deployed in The Netherlands, Belgium, the UK and Germany [4-6]. In such VPPs, it could be included different distributed energy storage systems (DESS). DRES are usually combined with DESS in order to solve intermittent issues caused by weather change. The advantages of the coordination between DESSs with RES are shown in [79]. Authors in [10] introduce the operational method in

• Hoá học
• Vietnam Journal of Science and Technology
• An approach to balance state of charges
• Distributed batteries in virtual power plants
• DC distribution network
• Journal of Science
• Journal of Technology
• Technology Management
• Science and Technology
• International integration
• Journal of Marine Science and Technology
• Present state of ocean observations and service in Vietnam
• Unmanned Aerial Vehicle
• The Vietnam Academy of Science and Technology
• Ministry of Natural Resources and Environment
• Research Organizations
• Policy Planning
• Science and Technology development
• Theory Z
• Human Resources
• Development policy of Japan
• Technology and innovation system
• STI system
• Universities of Vietnam
• Model of Scientific Research
• Social Science Research System
• Nucleotide diversity of 15 conifer species in Vietnam’ s central highland
• Highland of Vietnam
• 15 conifer species
• Species of conifers
• Journal of Vietnam Agricultural Science and Technology
• Tạp chí Khoa học Công nghệ Nông nghiệp Việt Nam
• Agro food value chain
• Trade policy Vietnam
• Vietnam’s agricultural export
• The agricultural market
• The improved upland rice technology (IURT)
• Contract farming
• Improved technology
• Ssubsequent effect
• Application of passive remote sensin
• Upward looking microwave radiometers
• Technology Institute Vietnam Academy
• Trees canopyusing ground based
• Close innovation
• Open innovation
• Technological innovation
• Mechanical engineering
• R&D Organization
• Research activity
• Modeling studies of Vietnam lemongrass essential oil extraction process
• Lemongrass essential oil
• Response surface methodology
• Box Behnken design
• Kinetics of pyrolysis reaction
• Agricultural residues in Vietnam
• Corn cob and sugarcane bagasse
• Pyrolysis or gasification
• A hopane triterpenoid
• The mycelium of isaria japonica in Vietnam
• NMR assignment for 11β
• 22 dihydroxyhopane
• Spectral data analysis
• Seawater desalination applications in Vietnam
• Potential and challenges
• Current seawater desalination plants
• The MD process including configurations
• Characteristics of elemental and organic carbon
• Different sampling locations in vietnam
• NPs in the atmosphere
• Journal of Science and Technology
• Antibiotics and pesticides in water and sediments
• Intensive shrimp farms in southern Vietnam
• Mekong Delta Vietnam
• Arge amount of antibiotics
• Chemical constituents and biological activities
• Alpinia kwangsiensis collected in Vietnam
• Methanol extract of Alpinia kwangsiensis roots
• Staphylococcus aureus and Bacillus subtilis
• Wave characteristics in east Vietnam sea
• WAM cycle 4
• East Vietnam Sea
• Wave field Typhoon
• Using benthos to evaluate the quality
• The incident caused by formosa
• The central Vietnam
• The fungal strain FBV40
• Purification and characterization of laccase involved
• The white rot fungus isolated
• Bavi forest of Vietnam
• Study of sudden ionospheric disturbances
• Low frequency receiver
• Nha Trang province
• The sudden ionospheric disturbance
• Preliminary assessment of Btex
• Indoor and outdoor air
• Residential homes in Hanoi
• Among BTEX compounds