Harmonic State Space Based Impedance Modeling and Virtual Impedance Based Stability Enhancement Control for LCC-HVDC Systems
Line commutated converter based high-voltage direct-current (LCC-HVDC) transmissions are prone to harmonic oscillation under weak grids. Impedance modeling is an effective method for assessing interaction stability. Firstly, this paper proposes an improved calculation method for the DC voltage and A...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2024-01-01
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| Series: | Journal of Modern Power Systems and Clean Energy |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10117495/ |
| _version_ | 1797342300725051392 |
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| author | Yifeng Liu Xiaoping Zhou Quan Chen Hanhang Yin Lerong Hong Hao Tian Ying Chen Siyuan Li |
| author_facet | Yifeng Liu Xiaoping Zhou Quan Chen Hanhang Yin Lerong Hong Hao Tian Ying Chen Siyuan Li |
| author_sort | Yifeng Liu |
| collection | DOAJ |
| description | Line commutated converter based high-voltage direct-current (LCC-HVDC) transmissions are prone to harmonic oscillation under weak grids. Impedance modeling is an effective method for assessing interaction stability. Firstly, this paper proposes an improved calculation method for the DC voltage and AC currents of commutation stations to address the complex linearization of the commutation process and constructs an overall harmonic state-space (HSS) model of an LCC-HVDC. Based on the HSS model, the closed-loop AC impedances on the LCC-HVDC sending and receiving ends are then derived and verified. The impedance characteristics of the LCC-HVDC are then analyzed to provide a physical explanation for the harmonic oscillation of the system. The effects of the grid strength and control parameters on system stability are also analyzed. To improve the impedance characteristics and operating stability of the LCC-HVDC system, a virtual impedance based stability enhancement control is proposed, and a parameter design method is considered to ensure satisfactory phase margins at both the sending and receiving ends. Finally, simulation results are presented to verify the validity of the impedance model and virtual impedance based stability enhancement control. |
| first_indexed | 2024-03-08T10:31:17Z |
| format | Article |
| id | doaj.art-4ad07e0187a942d58712b1e37bf86af1 |
| institution | Directory Open Access Journal |
| issn | 2196-5420 |
| language | English |
| last_indexed | 2024-03-08T10:31:17Z |
| publishDate | 2024-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | Journal of Modern Power Systems and Clean Energy |
| spelling | doaj.art-4ad07e0187a942d58712b1e37bf86af12024-01-27T00:03:11ZengIEEEJournal of Modern Power Systems and Clean Energy2196-54202024-01-0112128729810.35833/MPCE.2022.00072210117495Harmonic State Space Based Impedance Modeling and Virtual Impedance Based Stability Enhancement Control for LCC-HVDC SystemsYifeng Liu0Xiaoping Zhou1Quan Chen2Hanhang Yin3Lerong Hong4Hao Tian5Ying Chen6Siyuan Li7College of Electrical and Information Engineering, Hunan University,Changsha,China,410082College of Electrical and Information Engineering, Hunan University,Changsha,China,410082Zhejiang Magtron Intelligent Technology Limited Cooperation,Jiaxing,China,314000College of Electrical and Information Engineering, Hunan University,Changsha,China,410082College of Electrical and Information Engineering, Hunan University,Changsha,China,410082State Grid Qianjiang Electric Power Company,Qianjiang,China,433100State Grid Qianjiang Electric Power Company,Qianjiang,China,433100State Grid Qianjiang Electric Power Company,Qianjiang,China,433100Line commutated converter based high-voltage direct-current (LCC-HVDC) transmissions are prone to harmonic oscillation under weak grids. Impedance modeling is an effective method for assessing interaction stability. Firstly, this paper proposes an improved calculation method for the DC voltage and AC currents of commutation stations to address the complex linearization of the commutation process and constructs an overall harmonic state-space (HSS) model of an LCC-HVDC. Based on the HSS model, the closed-loop AC impedances on the LCC-HVDC sending and receiving ends are then derived and verified. The impedance characteristics of the LCC-HVDC are then analyzed to provide a physical explanation for the harmonic oscillation of the system. The effects of the grid strength and control parameters on system stability are also analyzed. To improve the impedance characteristics and operating stability of the LCC-HVDC system, a virtual impedance based stability enhancement control is proposed, and a parameter design method is considered to ensure satisfactory phase margins at both the sending and receiving ends. Finally, simulation results are presented to verify the validity of the impedance model and virtual impedance based stability enhancement control.https://ieeexplore.ieee.org/document/10117495/Line commutated converter based high-voltage direct-current (LCC-HVDC) transmissionharmonic state spacestability analysisharmonic oscillationvirtual impedance |
| spellingShingle | Yifeng Liu Xiaoping Zhou Quan Chen Hanhang Yin Lerong Hong Hao Tian Ying Chen Siyuan Li Harmonic State Space Based Impedance Modeling and Virtual Impedance Based Stability Enhancement Control for LCC-HVDC Systems Journal of Modern Power Systems and Clean Energy Line commutated converter based high-voltage direct-current (LCC-HVDC) transmission harmonic state space stability analysis harmonic oscillation virtual impedance |
| title | Harmonic State Space Based Impedance Modeling and Virtual Impedance Based Stability Enhancement Control for LCC-HVDC Systems |
| title_full | Harmonic State Space Based Impedance Modeling and Virtual Impedance Based Stability Enhancement Control for LCC-HVDC Systems |
| title_fullStr | Harmonic State Space Based Impedance Modeling and Virtual Impedance Based Stability Enhancement Control for LCC-HVDC Systems |
| title_full_unstemmed | Harmonic State Space Based Impedance Modeling and Virtual Impedance Based Stability Enhancement Control for LCC-HVDC Systems |
| title_short | Harmonic State Space Based Impedance Modeling and Virtual Impedance Based Stability Enhancement Control for LCC-HVDC Systems |
| title_sort | harmonic state space based impedance modeling and virtual impedance based stability enhancement control for lcc hvdc systems |
| topic | Line commutated converter based high-voltage direct-current (LCC-HVDC) transmission harmonic state space stability analysis harmonic oscillation virtual impedance |
| url | https://ieeexplore.ieee.org/document/10117495/ |
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