Decentralized Secondary Control of DGs for an Islanded Hybrid AC/DC Microgrid
Islanded hybrid ac/dc microgrids (IHMGs), in which ac and dc subgrids are interconnected via interlinking converters (ICs), have emerged as a promising solution for efficient and zero-carbon power grids. In an IHMG, primary objectives of the secondary control for distributed generators (DGs) are to...
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| creator | Chang, Jae-Won Park, Jae-Young Hwang, Pyeong-Ik |
| description | Islanded hybrid ac/dc microgrids (IHMGs), in which ac and dc subgrids are interconnected via interlinking converters (ICs), have emerged as a promising solution for efficient and zero-carbon power grids. In an IHMG, primary objectives of the secondary control for distributed generators (DGs) are to 1) restore the frequency of the ac subgrid ( f ) and common dc bus voltage of the dc subgrid ( V dc ) to their nominal values, and 2) achieve global power sharing among all DGs throughout the entire IHMG. For conventional secondary control methods of DGs, communication lines of DGs and inter-domain communication lines between DGs and ICs are utilized to achieve the objectives, raising reliability and cost issues. In this study, a novel decentralized secondary control method for DGs in an IHMG is proposed, eliminating the need for communications of DGs and inter-domain communications. The effectiveness of the proposed method was validated through dynamic simulations using Simulink/MATLAB. The obtained results were compared with those of a conventional method. |
| doi_str_mv | 10.1109/ACCESS.2023.3344075 |
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In an IHMG, primary objectives of the secondary control for distributed generators (DGs) are to 1) restore the frequency of the ac subgrid ( f ) and common dc bus voltage of the dc subgrid ( V dc ) to their nominal values, and 2) achieve global power sharing among all DGs throughout the entire IHMG. For conventional secondary control methods of DGs, communication lines of DGs and inter-domain communication lines between DGs and ICs are utilized to achieve the objectives, raising reliability and cost issues. In this study, a novel decentralized secondary control method for DGs in an IHMG is proposed, eliminating the need for communications of DGs and inter-domain communications. The effectiveness of the proposed method was validated through dynamic simulations using Simulink/MATLAB. 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The obtained results were compared with those of a conventional method.</description><subject>Control methods</subject><subject>Decentralized control</subject><subject>Distributed generation</subject><subject>distributed generator</subject><subject>Frequency control</subject><subject>Global Positioning System</subject><subject>hybrid ac/dc microgrid</subject><subject>Integrated circuits</subject><subject>inter-domain communication</subject><subject>Microgrids</subject><subject>secondary control</subject><subject>Steady-state</subject><subject>Valves</subject><subject>Voltage control</subject><issn>2169-3536</issn><issn>2169-3536</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><sourceid>ESBDL</sourceid><sourceid>RIE</sourceid><sourceid>DOA</sourceid><recordid>eNpNUT1vwjAUjKpWKqL8gnaw1BnwsxPHHlGggATqQDtb_goKSmPqhIH--poGVXjx8-nu3lmXJM-AJwBYTGdFsdjtJgQTOqE0TXGe3SUDAkyMaUbZ_c38mIza9oDj4RHK8kGynTvjmi6ouvpxFu2c8Y1V4YwKH1FfI1-i-bJFpQ9INWjd1qqxkbg661BZNCum8wJtKxP8Pr6fkodS1a0bXe9h8vm2-ChW4837cl3MNmNDM9GNQaQZaIIVo4oYazQ4zllq45QyBjkHXmZEKKZKLgB0LjImHFjjtMOUaTpM1r2v9eogj6H6ipGlV5X8A3zYSxW6ytROMlsKxrAmmtvUQCkI0UzlOqfKcgouer32Xsfgv0-u7eTBn0IT40sigAgas-LIoj0r_rRtgyv_twKWlxpkX4O81CCvNUTVS6-qnHM3CsooEEZ_AU_fgZw</recordid><startdate>20240101</startdate><enddate>20240101</enddate><creator>Chang, Jae-Won</creator><creator>Park, Jae-Young</creator><creator>Hwang, Pyeong-Ik</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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| subjects | Control methods Decentralized control Distributed generation distributed generator Frequency control Global Positioning System hybrid ac/dc microgrid Integrated circuits inter-domain communication Microgrids secondary control Steady-state Valves Voltage control |
| title | Decentralized Secondary Control of DGs for an Islanded Hybrid AC/DC Microgrid |
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