Control digital desacoplado de inversores trifásicos de cuatro piernas para alimentar cargas equilibradas y desequilibradas

E. Oggier, F. Botterón, G. Oggier, G. García

Resumen

Este trabajo presenta una estrategia de control digital para inversores trifásicos de cuatro piernas, para cumplir con el requerimiento de normas internacionales de calidad de energía para UPS cuando se alimentan cargas equilibradas y desequilibradas. La estrategia de control propuesta se desarrolla en el marco de referencia dq0 en tiempo discreto, posee un lazo interno para controlar la corriente de los inductores y un lazo externo para controlar la tensión de salida. Se demuestra que utilizando controladores convencionales pueden desacoplarse las tensiones de los ejes d y q, en todo el rango de funcionamiento del inversor, lo que permite diseñar los controladores del lazo externo de control de tensión como sistemas SISO independientes, cumpliéndose los requerimientos de régimen transitorio y de régimen permanente impuestos por norma. Para mejorar el desempeño del inversor cuando se alimentan cargas desequilibradas, se propone utilizar un controlador Proporcional-Resonante únicamente en el lazo interno del eje 0, lográndose una estrategia de control simple y, en consecuencia, de bajo costo computacional. Se presentan resultados de simulación y experimentales que permiten validar la estrategia de control propuesta.


Palabras clave

Inversor Trifásico; Electrónica de Potencia; Control por modelo interno; Desacoplamiento

Clasificación por materias

Técnicas de control avanzado; Control de máquinas y motores y mecatrónica

Texto completo:

PDF

Referencias

Astrada, J., and DeAngelo, C. ,2019. Reducción de la impedancia de salida en inversores monofásicos para UPS con multi-lazo convencional y plug-in repetitivo. Revista Iberoamericana de Automática e Informática Industrial, 16(4), 391. https://doi.org/10.4995/riai.2019.11034

Bai, H., Wang, F., Wang, D., Liu, C. L., and Wang, T. Y. ,2009. A pole assignment of state feedback based on system matrix for three-phase four-leg inverter of high speed pm generator driven by micro-turbine. 2009 4th IEEE Conference on Industrial Electronics and Applications, ICIEA 2009, 1, 1361–1366. https://doi.org/10.1109/ICIEA.2009.5138424

Botterón, F., de Camargo, R., and Pinheiro, H. ,2003. New limiting algorithms for space vector modulated three-phase four-leg voltage source inverters. IEE Procedings.-Electronics Power Applications, 150(6). https://doi.org/10.1049/ip-epa:20030913

Botteron, F., and Pinheiro, H. ,2007. A three-phase UPS that complies with the standard IEC 62040-3. IEEE Transactions on Industrial Electronics, 54(4), 2120–2136. https://doi.org/10.1109/TIE.2007.894782

Carballo, R. E., Botterón, F., Oggier, G. G., and García, G. O. ,2016. Design approach of discrete-time resonant controllers for uninterruptible power supply applications through frequency response analysis. IET Power Electronics, 9(15), 2871–2879. https://doi.org/10.1049/iet-pel.2015.1059

Chen, D., Zhang, J., Qian, Z., 2013. Research on fast transient and 6n±1 harmonics suppressing repetitive control scheme for three-phase gridconnected inverters. IET Power Electronics 6 (3) , 601–610 . https://doi.org/10.1049/iet-pel.2012.0348

Corcau, J. I., Grigorie, T. L., Jula, N., Cepisca, C., and Popoviciu, N. ,2010. Dynamics and Control of Three-Phase Four-Leg Inverter. EHAC’10, 26–31.

Cosner, C., Anwar, G., and Tomizuka, M. ,1990. Plug in repetitive control for industrial robotic manipulators. Proceedings., IEEE International Conference on Robotics and Automation, 1970–1975. https://doi.org/10.1109/ROBOT.1990.126295

Franklin, G. F. P. ,1997. Digital Control of Dynamic Systems ,Addison Wesley (ed.); 3rd ed.

Gannett, R. a., Sozio, J. C., Boroyevich, D., 2002. Application of synchronous and stationary frame controllers fornunbalanced and nonlinear load compensation in 4-leg inverters. APEC. Seventeenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.02CH37335) 2 (c) , 1–6 . https://doi.org/10.1109/APEC.2002.989372

Houari, A., Djerioui, A., Saim, A., Ait-ahmed, M., and Machmoum, M. ,2017. Improved control strategy for power quality enhancement in standalone systems based on four-leg voltage source inverters. 1–9. https://doi.org/10.1049/iet-pel.2017.0124

IEC, 1990. Electromagnetic Compatibility (EMC) - Part 2-2: Compatibility levels for low-frequency conducted disturbances and signalling in public low-voltage power supply systems. IEC 61000-2-2

IEC. ,2011. Uninterruptible Power Systems (UPS)—Part 3: Method of Specifying the Performance and Test Requirements, Second Edition. IEC 62040-3.

Ismail, N. M., and Mishra, M. K. ,2017. Study on the design and switching dynamics of hysteresis current controlled four-leg voltage source inverter for load compensation. https://doi.org/10.1049/iet-pel.2017.0118

Li, Y. W. ,2009. Control and resonance damping of voltage-source and current-source converters with LC filters. IEEE Transactions on Industrial Electronics, 56(5), 1511–1521. https://doi.org/10.1109/TIE.2008.2009562

Liang, J., Green, T. C., Feng, C., and Weiss, G. ,2009. Increasing voltage utilization in split-link, four-wire inverters. IEEE Transactions on Power Electronics, 24(6), 1562–1569. https://doi.org/10.1109/TPEL.2009.2013351

Lidozzi, A., Ji, C., Solero, L., Zanchetta, P., and Crescimbini, F. ,2017. Digital Dead-Beat and Repetitive Combined Control for Stand-Alone Four-Leg VSI. IEEE Transactions on Industry Applications, 9994(c). https://doi.org/10.1109/TIA.2017.2734049

Liu, C., Wang, F., and Bai, H. ,2009. High performance controller design with PD feedback inner loop for three-phase four-leg inverter. 2009 4th IEEE Conference on Industrial Electronics and Applications, ICIEA 2009, 1, 1057–1061. https://doi.org/10.1109/ICIEA.2009.5138363

Miveh, M. R., Rahmat, M. F., Ghadimi, A. A., and Mustafa, M. W. ,2016. Control techniques for three-phase four-leg voltage source inverters in autonomous microgrids: A review. Renewable and Sustainable Energy Reviews, 54, 1592–1610. https://doi.org/10.1016/j.rser.2015.10.079

Miveh, M. R., Rahmat, M. F., Mustafa, M. W., Ghadimi, A. A., and Rezvani, A. ,2016. An Improved Control Strategy for a Four-Leg Grid-Forming Power Converter under Unbalanced Load Conditions. Advances in Power Electronics, 2016. https://doi.org/10.1155/2016/9123747

N. Mohan, T. Undeland, W. R. ,2002. Power Electronics: Converters Applications and design 3rd Ed. Wiley.

Nasiri, R., and Radan, A. ,2011. Adaptive decoupled control of 4-leg voltage-source inverters for standalone photovoltaic systems: Adjusting transient state response. Renewable Energy, 36(10), 2733–2741. https://doi.org/10.1016/j.renene.2011.03.007

Ortega, R., Carranza, O., Sosa, J. C., García, V., and Hernández, R. ,2016. Diseño de controladores para inversores monofásicos operando en modo isla dentro de una microrred. RIAI - Revista Iberoamericana de Automatica e Informatica Industrial, 13(1), 115–126. https://doi.org/10.1016/j.riai.2015.09.010

Phillips, C. L., Nagle, H. T., and Chakrabortty, A. ,2015. State Variables. In Digital control system analysis & design (4th ed., pp. 63–71).

Pichan, M., and Rastegar, H. ,2017. Sliding-mode control of four-leg inverter with fixed switching frequency for uninterruptible power supply applications. IEEE Transactions on Industrial Electronics, 64(8), 6805–6814. https://doi.org/10.1109/TIE.2017.2686346

Pichan, M., Rastegar, H., and Monfared, M. ,2017. Deadbeat Control of the Stand-Alone Four-Leg Inverter Considering the Effect of the Neutral Line Inductor. IEEE Transactions on Industrial Electronics, 64(4), 2592–2601. https://doi.org/10.1109/TIE.2016.2631459

Ryan, M. J., De Doncker, R. W., and Lorenz, R. D. ,2001. Decoupled control of a 4-leg inverter via a new 4×4 transformation matrix. IEEE Transactions on Power Electronics, 16(5), 694–701. https://doi.org/10.1109/PESC.1999.789001

Thandi, G. S., Zhang, R., Xing, K., Lee, F. C., and Boroyevich, D. ,1999. Modeling, control and stability analysis of a PEBB based DC DPS. IEEE Transactions on Power Delivery, 14(2), 497–505. https://doi.org/10.1109/61.754094

Xing, Y., Tan, C., Chen, Q., Zhang, L., Zhou, K., 2017. An improved deadbeat plus plug-in repetitive controller for three-phase four-leg inverters. Proceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society 2017–January (2) , 6325–6329 . https://doi.org/10.1109/IECON.2017.8217101

Yaramasu, V., Rivera, M., Narimani, M., Wu, B., and Rodriguez, J. ,2014. Model predictive approach for a simple and effective load voltage control of four-leg inverter with an output LC filter. IEEE Transactions on Industrial Electronics, 61(10), 5259–5270. https://doi.org/10.1109/TIE.2013.2297291

Yepes, A. G., Member, S., and Freijedo, F. D. ,2010. Effects of Discretization Methods on the Performance of Resonant Controllers. 25(7), 1692–1712. https://doi.org/10.1109/TPEL.2010.2041256

Yi, H., and Jin, S. ,2004. Study on control strategy for three-phase four-leg inverter power supply. IEEE Annual Conference of Industrial Electronics (IECON), 805–809.

Zhang, M. ,2013. Investigation of Switching Schemes for Three-phase Four-Leg Voltage Source Inverters. Newcastle University.

Zhang, R. ,1998. High performance power converter systems for nonlinear and unbalanced load/source. Virginia Polytechnic Institute.

Zhang, R., and Lee, F. C. ,2000. New high power, high performance power converter systems. Power Electronics, IEEE …, 15(3), 456–463. https://doi.org/10.1109/63.844505

Abstract Views

717
Metrics Loading ...

Metrics powered by PLOS ALM




Creative Commons License

Esta revista se publica bajo una Licencia Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)

Universitat Politècnica de València     https://doi.org/10.4995/riai

e-ISSN: 1697-7920     ISSN: 1697-7912