Mobile QR Code QR CODE : The Transactions P of the Korean Institute of Electrical Engineers
The Transactions P of the Korean Institute of Electrical Engineers

Korean Journal of Air-Conditioning and Refrigeration Engineering

ISO Journal TitleTrans. P of KIEE
  • Indexed by
    Korea Citation Index(KCI)
Title Sectional Linear P-Q Droop Based Voltage Control of Distribution System Connected Renewable Energy
Authors 정창섭(Chang Seop Jeong) ; 이수형(Soo Hyoung Lee)
DOI https://doi.org/10.5370/KIEEP.2019.68.3.156
Page pp.156-162
ISSN 1229-800X
Keywords CBDG; DG; P-Q droop; Renewable Energy; Voltage control
Abstract Recently, many academical and industrial projects are undergoing to expand renewable energies. In practice, most of the renewable energy generators are connected to the grid by converters as the form of distributed generators. So far, the converter-baseddistributed-generator (CBDG) has operated in unit power factor according to the grid code. The utility has the charge of voltage regulation of distribution system. However, as the total size of CBDGs increase, the voltage at the point of common coupling (PCC) of CBDG increases. Also, it causes increase of adjacent bus voltages. In this paper, the CBDG consumes reactive power to maintain constant PCC voltage according to P-Q droop curve while it supplies real power.