طراحی کنترل‌کننده اینورترهای چهارساق موازی جهت تغذیه بارهای نامتعادل و غیر خطی
محورهای موضوعی : مهندسی برق و کامپیوتر
مجید حسین‌پور
1
(دانشگاه تربیت مدرس)
مصطفی محمدیان
2
(دانشگاه تربیت مدرس)
علی یزدیان ورجانی
3
(دانشگاه تربیت مدرس)
کلید واژه: اینورتر چهارساق موازی‌سازی اینورترها تقسیم جریان کنترل حلقه زنجیری,
چکیده مقاله :
در این مقاله عملکرد موازی اینورترهای سه‌فاز چهارساق در حضور بارهای نامتعادل و غیر خطی بررسی شده است. جهت کنترل اینورترهای موازی بایستی برای اینورتر دو حلقه کنترلی داخلی جریان و خارجی ولتاژ طراحی گردد. در این مقاله جهت حصول اطمینان از عملکرد مناسب سیستم پیشنهادی در حضور بارهای نامتعادل و غیر خطی، کنترل‌کننده تناسبی برای حلقه داخلی جریان و کنترل‌کننده تناسبی- رزونانسی برای حلقه خارجی ولتاژ پیشنهاد و طراحی شده است. سیستم پیشنهادی توانایی تغذیه بارهای متعادل، نامتعادل و غیر خطی را داشته و به همراه تقسیم توان دقیق بین اینورترهای موازی، ولتاژ سینوسی مناسبی را در دو سر بارها تأمین می‌کند. نتایج شبیه‌سازی عملکرد مناسب سیستم پیشنهادی را نشان می‌دهند.
This paper investigates the performance of four-leg parallel inverters sharing unbalanced and nonlinear loads. An inner current and external voltage control loops are considered to control the parallel four-leg inverters. In this paper, a proportional controller for the current internal loop as well as a proportional-resonant one for the voltage external loop are considered to support the proper performance of the system. The proposed system is able to feed balanced, unbalanced, and nonlinear loads and provides an appropriate sinusoidal voltage waveform for loads by accurately sharing power between the parallel inverters. Simulation results verify the accurate and proper performance of the proposed system.
[1] E. Demirkutlu, S. Qetinkaya, and A. M. Hava, "Output voltage control of a four-leg inverter based three-phase UPS by means of stationary frame resonant filter banks," in Proc. European Conf. on Power Electronics and Applications, 10 pp., Sep. 2007.
[2] م. جعفری، ش. فرهنگی و ف. رجايي سلماسی، "طراحی کنترل‌کننده سنتز μ برای اينورترهای موازی سه‌فاز چهارساق،" مجموعه مقالات هفدهمين کنفرانس مهندسی برق ايران، تهران، 1388.
[3] J. M. Guerrero, J. Matas, L. G. de Vicuna, M. Castilla, and J. Miret, "Decentralized control for parallel operation of distributed generation inverters using resistive output impedance," IEEE Trans. on Industrial Electronics, vol. 54, no. 2, pp. 994-1004, Apr. 2007.
[4] J. M. Guerrero, L. Hang, and J. Uceda, "Control of distributed uninterruptible power supply systems," IEEE Trans. on Industrial Electronics, vol. 55, no. 8, pp. 2845-2859, Aug. 2008.
[5] M. Illindala and G. Venkataramanan, "Control of distributed generation systems to mitigate load and line imbalances," in Proc. 33rd Annu. IEEE PESC, vol. 4, pp. 2013-2018, Jun. 2002.
[6] P. Hsu and M. Behnke, "A three - phase synchronous frame controller for unbalanced load," in Proc. 29th Annu. IEEE PESC, vol. 2, pp. 1369-1374, May 1998.
[7] Y. Li, D. M. Vilathgamuwa, and L. P. Chiang, "Microgrid power quality enhancement using a three - phase four - wire grid - interfacing compensator," IEEE Trans. on Industry Applications, vol. 41, no. 6, pp. 1707-1719, Nov./Dec. 2005.
[8] H. S. Song and K. H. Nam, "Dual current control scheme for PWM converter under unbalanced input voltage conditions," IEEE Trans. on Industrial Electronics, vol. 46, no. 5, pp. 953-959, Oct. 1999.
[9] W. C. Lee, T. K. Lee, and D. S. Hyun, "A three - phase parallel active power filter operating with PCC voltage compensation with consideration for an unbalanced load," IEEE Trans. on Power Electronics, vol. 17, no. 5, pp. 807-814, Sep. 2002.
[10] T. L. Lee and P. T. Cheng, "Design of a new cooperative harmonic filtering strategy for distributed generation interface converters in an islanding network," IEEE Trans. on Power Electronics, vol. 22, no. 5, pp. 1919-1927, Sep. 2007.
[11] P. T. Cheng, C. A. Chen, T. L. Lee, and S. Y. Kuo, "A cooperative imbalance compensation method for distributed - generation interface converters," IEEE Trans. on Industry Applications, vol. 45, no. 2, pp. 805-815, Mar./Apr. 2009.
[12] S. M. Dehghan, A. Ale Ahmad, R. Lourakzadegan, M. Fazeli, M. Mohamadian, and A. Abrishamifar, "A high performance controller for parallel operation of three - phase UPSs powering unbalanced and nonlinear loads," in Power Electronics, Drive Systems and Technologies Conf., PEDSTC, pp. 433-438, Feb. 2011.
[13] D. De and V. Ramanarayanan, "Decentralized parallel operation of inverters sharing unbalanced and nonlinear loads," IEEE Trans. on Power Electronics, vol. 25, no. 12, pp. 3015-3025, Dec. 2010.
[14] Comparison Transformerless to Transformer-Based UPS Design, EMERSON Network Power.
[15] Y. W. Li, "Control and resonance damping of voltage - source and current source converters with LC filters," IEEE Trans. on Industrial Electronics, vol. 56, no. 5, pp. 1511-1521, May 2009.
[16] Y. W. Li, F. Blaabjerg, D. M. Vilathgamuwa, and P. C. Loh, "Design and comparison of high performance stationary - frame controllers for DVR implementation," IEEE Trans. on Power Electronics, vol. 22, no. 2, pp. 602-612, Mar. 2007.
[17] D. De and V. Ramanarayanan, "A proportional + multiresonant controller for three - phase four - wire high - frequency link inverter," IEEE Trans. on Power Electronics, vol. 25, no. 4, pp. 899-906, Apr. 2010.
[18] M. Shahparasti, A. Yazdian, M. Mohamadian, A. Sadeghi Larijani, and A. R. Fatemi, "Parallel uninterruptible power supplies based on z-source inverters," IET Power Electronics, vol. 5, no. 8, pp. 1359-1366, Sep. 2012.