Small-Signal Stability Analysis of Three-Phase Four-Wire System Integrated With Single-Phase PV Inverters Considering Phase to Phase Coupling Effect Under Asymmetric Grid
With the rapid growth of renewable energy sources, single-phase rooftop photovoltaic inverters connected to the distribution network have received widespread applications in recent years. In such a distribution network, asymmetric fault problems are likely to occur, and small-signal stability during...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IEEE
2023-01-01
|
| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10158682/ |
| _version_ | 1827913413963022336 |
|---|---|
| author | Yuming Liao Heng Nian Yaoxin Wang Dan Sun |
| author_facet | Yuming Liao Heng Nian Yaoxin Wang Dan Sun |
| author_sort | Yuming Liao |
| collection | DOAJ |
| description | With the rapid growth of renewable energy sources, single-phase rooftop photovoltaic inverters connected to the distribution network have received widespread applications in recent years. In such a distribution network, asymmetric fault problems are likely to occur, and small-signal stability during asymmetric faults becomes important. The existing papers analyzed the sequence impedance and related stability issues during asymmetric faults in a three-phase three-wire system. In contrast, the SIs connected to three-phase four-wire systems requires consideration of the effect of zero-sequence components and the phase to phase coupling effect. Because both the zero-sequence component and phase coupling effect will affect the impedance characteristics of the inverter sub-system and thus the stability of the power system. Therefore, this paper established the <inline-formula> <tex-math notation="LaTeX">$3\ast 3$ </tex-math></inline-formula> admittance model matrix for the inverter sub-system considering the frequency coupling effect and phase coupling effect under asymmetric fault. Based on the admittance model matrix, the main factors including phase-locked loop bandwidth and grid neutral inductance that affects the phase to phase coupling effect are also analyzed. In addition, this paper studies the effect of phase-locked loop bandwidth, short circuit fault degree, and short circuit location on system stability. The validity of theoretical analysis is further verified through the experimental results. |
| first_indexed | 2024-03-13T02:29:39Z |
| format | Article |
| id | doaj.art-eca7aff79edb47f1a3fc06c5927fddaf |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-03-13T02:29:39Z |
| publishDate | 2023-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-eca7aff79edb47f1a3fc06c5927fddaf2023-06-29T23:00:41ZengIEEEIEEE Access2169-35362023-01-0111638526386210.1109/ACCESS.2023.328828210158682Small-Signal Stability Analysis of Three-Phase Four-Wire System Integrated With Single-Phase PV Inverters Considering Phase to Phase Coupling Effect Under Asymmetric GridYuming Liao0Heng Nian1https://orcid.org/0000-0003-4816-084XYaoxin Wang2Dan Sun3https://orcid.org/0000-0001-7488-1347College of Electrical Engineering, Zhejiang University, Hangzhou, ChinaCollege of Electrical Engineering, Zhejiang University, Hangzhou, ChinaCollege of Electrical Engineering, Zhejiang University, Hangzhou, ChinaCollege of Electrical Engineering, Zhejiang University, Hangzhou, ChinaWith the rapid growth of renewable energy sources, single-phase rooftop photovoltaic inverters connected to the distribution network have received widespread applications in recent years. In such a distribution network, asymmetric fault problems are likely to occur, and small-signal stability during asymmetric faults becomes important. The existing papers analyzed the sequence impedance and related stability issues during asymmetric faults in a three-phase three-wire system. In contrast, the SIs connected to three-phase four-wire systems requires consideration of the effect of zero-sequence components and the phase to phase coupling effect. Because both the zero-sequence component and phase coupling effect will affect the impedance characteristics of the inverter sub-system and thus the stability of the power system. Therefore, this paper established the <inline-formula> <tex-math notation="LaTeX">$3\ast 3$ </tex-math></inline-formula> admittance model matrix for the inverter sub-system considering the frequency coupling effect and phase coupling effect under asymmetric fault. Based on the admittance model matrix, the main factors including phase-locked loop bandwidth and grid neutral inductance that affects the phase to phase coupling effect are also analyzed. In addition, this paper studies the effect of phase-locked loop bandwidth, short circuit fault degree, and short circuit location on system stability. The validity of theoretical analysis is further verified through the experimental results.https://ieeexplore.ieee.org/document/10158682/Asymmetric faultimpedance-based stability theoryphase to phase coupling effectsingle-phase rooftop photovoltaic inverterthree-phase four-wire system |
| spellingShingle | Yuming Liao Heng Nian Yaoxin Wang Dan Sun Small-Signal Stability Analysis of Three-Phase Four-Wire System Integrated With Single-Phase PV Inverters Considering Phase to Phase Coupling Effect Under Asymmetric Grid IEEE Access Asymmetric fault impedance-based stability theory phase to phase coupling effect single-phase rooftop photovoltaic inverter three-phase four-wire system |
| title | Small-Signal Stability Analysis of Three-Phase Four-Wire System Integrated With Single-Phase PV Inverters Considering Phase to Phase Coupling Effect Under Asymmetric Grid |
| title_full | Small-Signal Stability Analysis of Three-Phase Four-Wire System Integrated With Single-Phase PV Inverters Considering Phase to Phase Coupling Effect Under Asymmetric Grid |
| title_fullStr | Small-Signal Stability Analysis of Three-Phase Four-Wire System Integrated With Single-Phase PV Inverters Considering Phase to Phase Coupling Effect Under Asymmetric Grid |
| title_full_unstemmed | Small-Signal Stability Analysis of Three-Phase Four-Wire System Integrated With Single-Phase PV Inverters Considering Phase to Phase Coupling Effect Under Asymmetric Grid |
| title_short | Small-Signal Stability Analysis of Three-Phase Four-Wire System Integrated With Single-Phase PV Inverters Considering Phase to Phase Coupling Effect Under Asymmetric Grid |
| title_sort | small signal stability analysis of three phase four wire system integrated with single phase pv inverters considering phase to phase coupling effect under asymmetric grid |
| topic | Asymmetric fault impedance-based stability theory phase to phase coupling effect single-phase rooftop photovoltaic inverter three-phase four-wire system |
| url | https://ieeexplore.ieee.org/document/10158682/ |
| work_keys_str_mv | AT yumingliao smallsignalstabilityanalysisofthreephasefourwiresystemintegratedwithsinglephasepvinvertersconsideringphasetophasecouplingeffectunderasymmetricgrid AT hengnian smallsignalstabilityanalysisofthreephasefourwiresystemintegratedwithsinglephasepvinvertersconsideringphasetophasecouplingeffectunderasymmetricgrid AT yaoxinwang smallsignalstabilityanalysisofthreephasefourwiresystemintegratedwithsinglephasepvinvertersconsideringphasetophasecouplingeffectunderasymmetricgrid AT dansun smallsignalstabilityanalysisofthreephasefourwiresystemintegratedwithsinglephasepvinvertersconsideringphasetophasecouplingeffectunderasymmetricgrid |