Impedance-Based Stability Analysis in Grid Interconnection Impact Study Owing to the Increased Adoption of Converter-Interfaced Generators
Abstract
:1. Introduction
2. Modeling of Converter-Interfaced Generator Impedance
2.1. Impedance Equation with Converter Dynamics
2.2. Validation of Impedance Equation
3. Equivalent Impedance Modeling
4. Case Studies
4.1. System Configuration
4.2. Connection Point Variation
4.3. Control Parameter Variation
4.4. Distance Variation
4.5. Converter Disconnection Contingency
5. Conclusions
- Exploring the likely scenarios in power grids with high penetration of the CIG and gaining insights into the underlying mechanism.
- Investigating abnormal grid conditions due to, for example, single- and three-phase line faults and emergency response of the advanced CIGs.
- Investigating more utility-friendly ways to represent and understand the study results.
- Developing robust and damping control methods to avoid and mitigate the stability concerns for various conditions.
Acknowledgments
Author Contributions
Conflicts of Interest
Appendix A. System Parameters
Parameters | Values | |
---|---|---|
Grid voltage | 400 V | |
Grid frequency | 60 Hz | |
Grid impedance | 0.4 | |
0.3 mH | ||
Line impedance | 0.4375 /km | |
0.875 mH/km | ||
Distance between converters | 1.6 km |
Parameters | Values | |
---|---|---|
Switching frequency | 1980 Hz | |
Switching delay () | 20 s | |
Filter impedance | 0.4 mH | |
200 uF | ||
1.5 mH | ||
PI control | 0.5 | |
1.15 | ||
50 | ||
PLL | 140 | |
9800 |
References
- GE Energy. Western Wind and Solar Integration Study; Technical Report; The National Renewable Energy Laboratory: Golden, CO, USA, 2010.
- PJM. Generation and Transmission Interconnection Process; Technical Report; PJM: Norristown, PA, USA, 2016. [Google Scholar]
- Hoseinpour, A.; Barakati, S.M.; Ghazi, R. Harmonic reduction in wind turbine generators using a Shunt Active Filter based on the proposed modulation technique. Int. J. Electr. Power Energy Syst. 2012, 43, 1401–1412. [Google Scholar] [CrossRef]
- Chen, Z.; Luo, A.; Kuang, H.; Zhou, L.; Chen, Y.; Huang, Y. Harmonic resonance characteristics of large-scale distributed power plant in wideband frequency domain. Electr. Power Syst. Res. 2017, 143, 53–65. [Google Scholar] [CrossRef]
- Monjo, L.; Sainz, L.; Liang, J.; Pedra, J. Study of resonance in wind parks. Electr. Power Syst. Res. 2015, 128, 30–38. [Google Scholar] [CrossRef]
- Guerrero-Rodríguez, N.; Rey-Boué, A.B. Modelling, simulation and experimental verification for renewable agents connected to a distorted utility grid using a Real-Time Digital Simulation Platform. Energy Convers. Manag. 2014, 84, 108–121. [Google Scholar] [CrossRef]
- Cho, Y.; Lee, C.; Hur, K.; Kang, Y.C.; Muljadi, E.; Park, S.H.; Choy, Y.D.; Yoon, G.G. A Framework to Analyze the Stochastic Harmonics and Resonance of Wind Energy Grid Interconnection. Energies 2016, 9, 700. [Google Scholar] [CrossRef]
- Sun, J. Power Quality in Renewable Energy Systems—Challenges and Opportunities. In Proceedings of the International Conference on Renewable Energies and Power Quality, Santiago de Compostela, Spain, 28–30 March 2012. [Google Scholar]
- Zhou, J.Z.; Ding, H.; Fan, S.; Zhang, Y.; Gole, A.M. Impact of Short-Circuit Ratio and Phase-Locked-Loop Parameters on the Small-Signal Behavior of a VSC-HVDC Converter. IEEE Trans. Power Del. 2014, 29, 2287–2296. [Google Scholar] [CrossRef]
- Zhang, L.; Harnefors, L.; Nee, H.P. Interconnection of Two Very Weak AC Systems by VSC-HVDC Links Using Power-Synchronization Control. IEEE Trans. Power Syst. 2011, 26, 344–355. [Google Scholar] [CrossRef]
- Mohamed, Y.A.R.I.; El-Saadany, E.F. Adaptive Decentralized Droop Controller to Preserve Power Sharing Stability of Paralleled Inverters in Distributed Generation Microgrids. IEEE Trans. Power Electron. 2008, 23, 2806–2816. [Google Scholar] [CrossRef]
- Radwan, A.A.A.; Mohamed, Y.A.R.I. Assessment and Mitigation of Interaction Dynamics in Hybrid AC/DC Distribution Generation Systems. IEEE Trans. Smart Grid 2012, 3, 1382–1393. [Google Scholar] [CrossRef]
- Xu, L.; Fan, L. Impedance-Based Resonance Analysis in a VSC-HVDC System. IEEE Trans. Power Del. 2013, 28, 2209–2216. [Google Scholar] [CrossRef]
- Sun, J. Impedance-Based Stability Criterion for Grid-Connected Inverters. IEEE Trans. Power Electron. 2011, 26, 3075–3078. [Google Scholar] [CrossRef]
- Cespedes, M.; Sun, J. Impedance Modeling and Analysis of Grid-Connected Voltage-Source Converters. IEEE Trans. Power Electron. 2014, 29, 1254–1261. [Google Scholar] [CrossRef]
- Sun, J. Small-Signal Methods for AC Distributed Power Systems-A Review. IEEE Trans. Power Electron. 2009, 24, 2545–2554. [Google Scholar]
- Song, Y.; Wang, X.; Blaabjerg, F. Impedance-Based High-Frequency Resonance Analysis of DFIG System in Weak Grids. IEEE Trans. Power Electron. 2017, 32, 3536–3548. [Google Scholar] [CrossRef]
- Cao, W.; Ma, Y.; Yang, L.; Wang, F.; Tolbert, L.M. D-Q Impedance Based Stability Analysis and Parameter Design of Three-Phase Inverter-Based AC Power Systems. IEEE Trans. Ind. Electron. 2017, 64, 6017–6028. [Google Scholar] [CrossRef]
- Wen, B.; Dong, D.; Boroyevich, D.; Burgos, R.; Mattavelli, P.; Shen, Z. Impedance-Based Analysis of Grid-Synchronization Stability for Three-Phase Paralleled Converters. IEEE Trans. Power Electron. 2016, 31, 26–38. [Google Scholar] [CrossRef]
- Bayo-Salas, A.; Beerten, J.; Rimez, J.; Hertem, D.V. Impedance-based stability assessment of parallel VSC HVDC grid connections. In Proceedings of the 11th IET International Conference on AC and DC Power Transmission, Birmingham, UK, 10–12 February 2015; pp. 1–9. [Google Scholar]
- Lyu, J.; Cai, X.; Molinas, M. Frequency Domain Stability Analysis of MMC-Based HVdc for Wind Farm Integration. IEEE J. Emerg. Sel. Top. Power Electron. 2016, 4, 141–151. [Google Scholar] [CrossRef]
- Wang, X.; Blaabjerg, F.; Wu, W. Modeling and Analysis of Harmonic Stability in an AC Power-Electronics-Based Power System. IEEE Trans. Power Electron. 2014, 29, 6421–6432. [Google Scholar] [CrossRef]
- Wang, X.; Blaabjerg, F.; Liserre, M.; Chen, Z.; He, J.; Li, Y. An Active Damper for Stabilizing Power-Electronics-Based AC Systems. IEEE Trans. Power Electron. 2014, 29, 3318–3329. [Google Scholar] [CrossRef]
- Yoon, C.; Bai, H.; Beres, R.N.; Wang, X.; Bak, C.L.; Blaabjerg, F. Harmonic Stability Assessment for Multiparalleled, Grid-Connected Inverters. IEEE Trans. Sustain. Energy 2016, 7, 1388–1397. [Google Scholar] [CrossRef]
- Roinila, T.; Messo, T.; Santi, E. MIMO-Identification Techniques for Rapid Impedance-based Stability Assessment of Three Phase Systems in DQ Domain. IEEE Trans. Power Electron. 2017, PP, 1. [Google Scholar] [CrossRef]
- Roinila, T.; Vilkko, M.; Sun, J. Online Grid Impedance Measurement Using Discrete-Interval Binary Sequence Injection. IEEE J. Emerg. Sel. Top. Power Electron. 2014, 2, 985–993. [Google Scholar] [CrossRef]
- Golnaraghi, F.; Kuo, B.C. Automatic Control Systems, 9th ed.; Wiley: Hoboken, NJ, USA, 2010. [Google Scholar]
- Teodorescu, R.; Liserre, M.; Rodriguez, P. Grid Converters for Photovoltaic and Wind Power Systems; Wiley: West Sussex, UK, 2011. [Google Scholar]
- Kaura, V.; Blasko, V. Operation of a phase locked loop system under distorted utility conditions. IEEE Trans. Ind. Appl. 1997, 33, 58–63. [Google Scholar] [CrossRef]
- Chung, S.K. A phase tracking system for three phase utility interface inverters. IEEE Trans. Power Electron. 2000, 15, 431–438. [Google Scholar] [CrossRef]
- Golestan, S.; Guerrero, J.M. Conventional Synchronous Reference Frame Phase-Locked Loop is an Adaptive Complex Filter. IEEE Trans. Ind. Electron. 2015, 62, 1679–1682. [Google Scholar] [CrossRef]
- Li, G.; Du, Z.; An, T.; Xia, Y.; Lei, J. Impact of PLL and VSC control parameters on the AC/MTDC systems stability. Electr. Power Syst. Res. 2016, 141, 476–486. [Google Scholar] [CrossRef]
- Yazdani, A.; Iravani, R. Voltage-Sourced Converters in Power Systems: Modeling, Control, and Applications; Wiley: Hoboken, NJ, USA, 2010. [Google Scholar]
- Cespedes, M.; Sun, J. Three-phase impedance measurement for system stability analysis. In Proceedings of the 2013 IEEE 14th Workshop on Control and Modeling for Power Electronics (COMPEL), Salt Lake City, UT, USA, 23–26 June 2013; pp. 1–6. [Google Scholar]
- Electromagnetic Compatibility (EMC)-Part 4-7: Testing and Measurement Techniques-General Guide on Harmonics and Interharmonics Measurements and Instrumentation, for Power Supply Systems and Equipment Connected Thereto; IEC 61000-4-7; International Electrotechnical Commission: Geneva, Switzerland, 2002.
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Cho, Y.; Hur, K.; Kang, Y.C.; Muljadi, E. Impedance-Based Stability Analysis in Grid Interconnection Impact Study Owing to the Increased Adoption of Converter-Interfaced Generators. Energies 2017, 10, 1355. https://doi.org/10.3390/en10091355
Cho Y, Hur K, Kang YC, Muljadi E. Impedance-Based Stability Analysis in Grid Interconnection Impact Study Owing to the Increased Adoption of Converter-Interfaced Generators. Energies. 2017; 10(9):1355. https://doi.org/10.3390/en10091355
Chicago/Turabian StyleCho, Youngho, Kyeon Hur, Yong Cheol Kang, and Eduard Muljadi. 2017. "Impedance-Based Stability Analysis in Grid Interconnection Impact Study Owing to the Increased Adoption of Converter-Interfaced Generators" Energies 10, no. 9: 1355. https://doi.org/10.3390/en10091355