Analysis of Subsynchronous Torsional of Wind–Thermal Bundled System Transmitted via HVDC Based on Signal Injection Method
With the development of large-scale new energy, the wind–thermal bundled system transmitted via high-voltage direct current (HVDC) has become the main method to solve the problem of wind power consumption. At the same time, the problem of subsynchronous oscillation among wind power generators, high-...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-01-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/14/2/474 |
| _version_ | 1797410484129890304 |
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| author | Junxi Wang Qi Jia Gangui Yan Kan Liu Dan Wang |
| author_facet | Junxi Wang Qi Jia Gangui Yan Kan Liu Dan Wang |
| author_sort | Junxi Wang |
| collection | DOAJ |
| description | With the development of large-scale new energy, the wind–thermal bundled system transmitted via high-voltage direct current (HVDC) has become the main method to solve the problem of wind power consumption. At the same time, the problem of subsynchronous oscillation among wind power generators, high-voltage direct current (HVDC), and synchronous generators (SGs) has become increasingly prominent. According to the dynamic interaction among doubly fed induction generators (DFIGs), HVDC, and SGs, a linearization model of DFIGs and SGs transmitted via HVDC is established, and the influence of the electromagnetic transient of wind turbines and HVDC on the electromechanical transient processes of SGs is studied. Using the method of additional excitation signal injection, the influence of the main factors of DFIG on the damping characteristics of each torsional mode of SG is analyzed, including control parameters and operation conditions when the capacity of HVDC is fixed. The mechanism of the negative damping torsional of SGs is identified. A time-domain simulation model is built in Electromagnetic Transients including DC/Power Systems Computer Aided Design (EMTDC/PSCAD) to verify the correctness and effectiveness of the theoretical analysis. |
| first_indexed | 2024-03-09T04:29:39Z |
| format | Article |
| id | doaj.art-4b8e0c2497d34b96836603b750e87237 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T04:29:39Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-4b8e0c2497d34b96836603b750e872372023-12-03T13:36:21ZengMDPI AGEnergies1996-10732021-01-0114247410.3390/en14020474Analysis of Subsynchronous Torsional of Wind–Thermal Bundled System Transmitted via HVDC Based on Signal Injection MethodJunxi Wang0Qi Jia1Gangui Yan2Kan Liu3Dan Wang4Ministry of Education Key Laboratory of Modern Power System Simulation Control and Green Power Technology, Northeast Electric Power University, Jilin 132012, ChinaMinistry of Education Key Laboratory of Modern Power System Simulation Control and Green Power Technology, Northeast Electric Power University, Jilin 132012, ChinaMinistry of Education Key Laboratory of Modern Power System Simulation Control and Green Power Technology, Northeast Electric Power University, Jilin 132012, ChinaMinistry of Education Key Laboratory of Modern Power System Simulation Control and Green Power Technology, Northeast Electric Power University, Jilin 132012, ChinaMinistry of Education Key Laboratory of Modern Power System Simulation Control and Green Power Technology, Northeast Electric Power University, Jilin 132012, ChinaWith the development of large-scale new energy, the wind–thermal bundled system transmitted via high-voltage direct current (HVDC) has become the main method to solve the problem of wind power consumption. At the same time, the problem of subsynchronous oscillation among wind power generators, high-voltage direct current (HVDC), and synchronous generators (SGs) has become increasingly prominent. According to the dynamic interaction among doubly fed induction generators (DFIGs), HVDC, and SGs, a linearization model of DFIGs and SGs transmitted via HVDC is established, and the influence of the electromagnetic transient of wind turbines and HVDC on the electromechanical transient processes of SGs is studied. Using the method of additional excitation signal injection, the influence of the main factors of DFIG on the damping characteristics of each torsional mode of SG is analyzed, including control parameters and operation conditions when the capacity of HVDC is fixed. The mechanism of the negative damping torsional of SGs is identified. A time-domain simulation model is built in Electromagnetic Transients including DC/Power Systems Computer Aided Design (EMTDC/PSCAD) to verify the correctness and effectiveness of the theoretical analysis.https://www.mdpi.com/1996-1073/14/2/474doubly fed induction generatorsynchronous generatorhigh-voltage direct currentelectromechanical couplingshaft torsion |
| spellingShingle | Junxi Wang Qi Jia Gangui Yan Kan Liu Dan Wang Analysis of Subsynchronous Torsional of Wind–Thermal Bundled System Transmitted via HVDC Based on Signal Injection Method Energies doubly fed induction generator synchronous generator high-voltage direct current electromechanical coupling shaft torsion |
| title | Analysis of Subsynchronous Torsional of Wind–Thermal Bundled System Transmitted via HVDC Based on Signal Injection Method |
| title_full | Analysis of Subsynchronous Torsional of Wind–Thermal Bundled System Transmitted via HVDC Based on Signal Injection Method |
| title_fullStr | Analysis of Subsynchronous Torsional of Wind–Thermal Bundled System Transmitted via HVDC Based on Signal Injection Method |
| title_full_unstemmed | Analysis of Subsynchronous Torsional of Wind–Thermal Bundled System Transmitted via HVDC Based on Signal Injection Method |
| title_short | Analysis of Subsynchronous Torsional of Wind–Thermal Bundled System Transmitted via HVDC Based on Signal Injection Method |
| title_sort | analysis of subsynchronous torsional of wind thermal bundled system transmitted via hvdc based on signal injection method |
| topic | doubly fed induction generator synchronous generator high-voltage direct current electromechanical coupling shaft torsion |
| url | https://www.mdpi.com/1996-1073/14/2/474 |
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