Analysis of Black Start of a Microgrid with PV, DG, and BESS
Akhiya Sanal1, Pruthiraj Swain2, Ashoka Shyamaprasad3
1Akhiya Sanal, R&D Associate Engineer, Power Grids-Grid Automation, ABB India Limited, Bengaluru (Karnataka), India.
2Pruthiraj Swain, R&D Engineer, Power Grids-Grid Automation, ABB India Limited, Bengaluru (Karnataka), India.
3Ashoka Shyamaprasad, Technical Product Manager, Power Grids-Grid Automation, ABB India Limited, Bengaluru (Karnataka), India.
Manuscript received on 23 February 2020 | Revised Manuscript received on 06 March 2020 | Manuscript Published on 18 March 2020 | PP: 1-8 | Volume-8 Issue-6S March 2020 | Retrieval Number: F10010386S20/2020©BEIESP | DOI: 10.35940/ijrte.F1001.0386S20
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Different combinations of operating scenarios for a microgrid with distributed energy resources and energy storage system is considered to understand the operation of a microgrid. An operational strategy analysis of a microgrid system consisting of photovoltaics, diesel generator, and battery energy storage system during a black start in islanded mode is considered in this paper. BESS under study consists of a bidirectional converter and a battery system. BESS is assumed to be active as a solution provided in all the scenarios. The various capabilities of BESS in a microgrid system is also discussed. Microgrid system provides reliable power supply and hence black start capability for such a system is essential in keeping intact the advantages of a microgrid. Performing a black start requires a sequential process to be followed to avoid fluctuations in bus voltage, frequency, and protecting the fuses/ contactors from blowing. To black start the system under study, the DC breaker connecting the battery and the bidirectional converter needs to be closed. Closing the DC breaker results in high inrush current from batteries at the DC output of the bidirectional converter. A DC arrangement is envisaged in the battery energy storage system to avoid arcing due to high inrush current.
Keywords: Battery Energy Storage System, Black Start, Diesel Generator, Environmental Impact, Microgrid, Photovoltaic, Reliability, Renewables.
Scope of the Article: Predictive Analysis