VSG Stability and Coordination Enhancement under Emergency Condition
Renewable energy sources are integrated into a grid via inverters. Due to the absence of an inherent droop in an inverter, an artificial droop and inertia control is designed to let the grid-connected inverters mimic the operation of synchronous generators and such inverters are called virtual synch...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-09-01
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| Series: | Electronics |
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| Online Access: | http://www.mdpi.com/2079-9292/7/9/202 |
| _version_ | 1811185204541259776 |
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| author | Aazim Rasool Xiangwu Yan Haaris Rasool Hongxia Guo Mansoor Asif |
| author_facet | Aazim Rasool Xiangwu Yan Haaris Rasool Hongxia Guo Mansoor Asif |
| author_sort | Aazim Rasool |
| collection | DOAJ |
| description | Renewable energy sources are integrated into a grid via inverters. Due to the absence of an inherent droop in an inverter, an artificial droop and inertia control is designed to let the grid-connected inverters mimic the operation of synchronous generators and such inverters are called virtual synchronous generators (VSG). Sudden addition, removal of load or faults in the grid causes power and frequency oscillations in the grid. The steady state droop control of VSG is not effective in dampening such oscillations. Therefore, a new control scheme, namely bouncy control, has been introduced. This control uses a variable emergency gain, to enhance or reduce the power contribution of individual VSGs during a disturbance. The maximum power contribution of an individual VSG is limited by its power rating. It has been observed that this control, successfully minimized the oscillation of electric parameters and the power system approached steady state quickly. Therefore, by implementing bouncy control, VSGs can work in coordination to make the grid more robust. The proposed controller is verified through Lyapunov stability analysis. |
| first_indexed | 2024-04-11T13:26:30Z |
| format | Article |
| id | doaj.art-352fe4233a904c77be353a644f621c06 |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-04-11T13:26:30Z |
| publishDate | 2018-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-352fe4233a904c77be353a644f621c062022-12-22T04:22:03ZengMDPI AGElectronics2079-92922018-09-017920210.3390/electronics7090202electronics7090202VSG Stability and Coordination Enhancement under Emergency ConditionAazim Rasool0Xiangwu Yan1Haaris Rasool2Hongxia Guo3Mansoor Asif4Department of Electrical Engineering, North China Electric Power University, Baoding 071003, ChinaDepartment of Electrical Engineering, North China Electric Power University, Baoding 071003, ChinaElectrical Engineering and Power Electronics Department, Vrije Universiteit Brussel, 1050 Brussels, BelgiumGoldwind Science and Technology, Co. Ltd., Beijing 100176, ChinaDepartment of Electronics System Engineering, Hanyang University, Ansan 15588, Korea, <email>mansoor1991@hanyang.ac.kr</email>Renewable energy sources are integrated into a grid via inverters. Due to the absence of an inherent droop in an inverter, an artificial droop and inertia control is designed to let the grid-connected inverters mimic the operation of synchronous generators and such inverters are called virtual synchronous generators (VSG). Sudden addition, removal of load or faults in the grid causes power and frequency oscillations in the grid. The steady state droop control of VSG is not effective in dampening such oscillations. Therefore, a new control scheme, namely bouncy control, has been introduced. This control uses a variable emergency gain, to enhance or reduce the power contribution of individual VSGs during a disturbance. The maximum power contribution of an individual VSG is limited by its power rating. It has been observed that this control, successfully minimized the oscillation of electric parameters and the power system approached steady state quickly. Therefore, by implementing bouncy control, VSGs can work in coordination to make the grid more robust. The proposed controller is verified through Lyapunov stability analysis.http://www.mdpi.com/2079-9292/7/9/202virtual synchronous generator (VSG)parallel VSGslyapunov stability analysisoptimizationmultiple VSGs coordinationisland microgridreliability |
| spellingShingle | Aazim Rasool Xiangwu Yan Haaris Rasool Hongxia Guo Mansoor Asif VSG Stability and Coordination Enhancement under Emergency Condition Electronics virtual synchronous generator (VSG) parallel VSGs lyapunov stability analysis optimization multiple VSGs coordination island microgrid reliability |
| title | VSG Stability and Coordination Enhancement under Emergency Condition |
| title_full | VSG Stability and Coordination Enhancement under Emergency Condition |
| title_fullStr | VSG Stability and Coordination Enhancement under Emergency Condition |
| title_full_unstemmed | VSG Stability and Coordination Enhancement under Emergency Condition |
| title_short | VSG Stability and Coordination Enhancement under Emergency Condition |
| title_sort | vsg stability and coordination enhancement under emergency condition |
| topic | virtual synchronous generator (VSG) parallel VSGs lyapunov stability analysis optimization multiple VSGs coordination island microgrid reliability |
| url | http://www.mdpi.com/2079-9292/7/9/202 |
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