© The Institution of Engineering and Technology
The input current of single-phase inverter typically has an AC ripple component at twice the output frequency, which causes a reduction in both the operating lifetime of its DC source and the efficiency of the system. In this paper, the closed-loop performance of a proposed waveform control method to eliminate such a ripple current in boost inverter is investigated. The small-signal stability and the dynamic characteristic of the inverter system for input voltage or wide range load variations under the closed-loop waveform control method are studied. It is validated that with the closed-loop waveform control, not only was stability achieved, the reference voltage of the boost inverter capacitors can be instantaneously adjusted to match the new load, thereby achieving improved ripple mitigation for a wide load range. Furthermore, with the control and feedback mechanism, there is minimal level of ripple component at the DC bus during steady state, and the transient response is rapid with negligible effect on the output voltage. Analysis, simulation and experimental results are presented to support the investigation.
References
-
-
1)
-
37. Orfanoudakis, G.I., Yuratich, M.A., Sharkh, S.M.: ‘Analysis of dc-link capacitor current in three-level neutral point clamped and cascaded H-bridge inverters’, IET Power Electron., 2103, 6, (7), pp. 1376–1389 (doi: 10.1049/iet-pel.2012.0422).
-
2)
-
12. Li, X., Zhang, W.P., Li, H.J., et al: ‘Power management unit with its control for a three-phase fuel cell power system without large electrolytic capacitors’, IEEE Trans. Power Electron., 2011, 26, (12), pp. 3766–3777 (doi: 10.1109/TPEL.2011.2162533).
-
3)
-
27. Mohammadi, M., Taheri, M., Milimonfared, J., Abbasi, B., Behbahani, M.R.M.: ‘High step-up dc–dc converter with ripple free input current and soft switching’, IET Power Electron., 2014, 7, (12), pp. 3023–3032 (doi: 10.1049/iet-pel.2013.0881).
-
4)
-
1. Xiao, Y.S., Chang, L.C., Søren, B.K., et al: ‘Topologies of single-phase inverters for small distributed power generators: an overview’, IEEE Trans. Power Electron., 2004, 19, (5), pp. 1305–1314 (doi: 10.1109/TPEL.2004.833460).
-
5)
-
15. Jang, M., Ciobotaru, M., Agelidis, V.G.: ‘A single-stage fuel cell energy system based on a buck–boost inverter with a backup energy storage unit’, IEEE Trans. Power Electron., 2012, 27, (6), pp. 2825–2834 (doi: 10.1109/TPEL.2011.2177995).
-
6)
-
8. Han, H., Liu, Y.L., Sun, Y., et al: ‘Single-phase current source converter with power decoupling capability using a series-connected active buffer’, IET Power Electron., 2015, 8, (5), pp. 700–707 (doi: 10.1049/iet-pel.2014.0068).
-
7)
-
23. Yao, K., Ruan, X.B., Mao, X.J., et al: ‘Variable-duty-cycle control to achieve high input power factor for DCM boost PFC converter’, IEEE Trans. Ind. Electron., 2011, 58, (5), pp. 1856–1865 (doi: 10.1109/TIE.2010.2052538).
-
8)
-
10. Vishnu, M.I., Vinod, J.: ‘Low-frequency dc bus ripple cancellation in single phase pulse-width modulation inverters’, IET Power Electron., 2015, 8, (4), pp. 497–506 (doi: 10.1049/iet-pel.2014.0320).
-
9)
-
3. Abo-Khalil, A.G.: ‘Current injection-based DC-link capacitance estimation using support vector regression’, IET Power Electron., 2012, 5, (1), pp. 53–58 (doi: 10.1049/iet-pel.2010.0310).
-
10)
-
2. Ale Ahmad, A., Abrishamifar, A., Samadi, S.: ‘Low-frequency current ripple reduction in front-end boost converter with single-phase inverter load’, IET Power Electron., 2012, 5, (9), pp. 1676–1683 (doi: 10.1049/iet-pel.2011.0470).
-
11)
-
13. Serban, I.: ‘A novel transistor-less power decoupling solution for single-phase inverters’. IEEE Conf. of the IEEE Industrial Electronics Society (IECON), Vienna, Austria, November 2013, pp. 1496–1500.
-
12)
-
19. Ćaceres, R.O., Barbi, I.: ‘A boost DC–AC converter: analysis, design, and experimentation’, IEEE Trans. Power Electron., 1999, 14, (1), pp. 134–141 (doi: 10.1109/63.737601).
-
13)
-
29. Jang, M., Agelidis, V.G.: ‘A minimum power-processing stage fuel cell energy system based on a boost-inverter with a bi-directional back-up battery storage’, IEEE Trans. Power Electron., 2011, 26, (5), pp. 1568–1577 (doi: 10.1109/TPEL.2010.2086490).
-
14)
-
5. Schenck, M., Lai, J.S., Stanton, K.: ‘Fuel cell and power conditioning system interactions’. IEEE Applied Power Electronics Conf. (APEC), Texas, USA, June 2005, pp. 114–120.
-
15)
-
16)
-
11. Tsang, K.M., Chan, W.L.: ‘Decoupling controller design for Z-source inverter’, IET Power Electron., 2015, 8, (4), pp. 536–545 (doi: 10.1049/iet-pel.2014.0207).
-
17)
-
28. Ma, Y.D., Qiu, B., Cong, Q.: ‘Research on single-stage inverter based on bi-directional buck DC converter’. Proc. IEEE Power Electronics for Distributed Generation Systems (PEDG), Hefei, China, June 2010, pp. 299–303.
-
18)
-
30. Vazquez, N., Alvarez, J., Aguilar, C., et al: ‘Some critical aspects in sliding mode control design for the boost inverter’. Proc. IEEE Power Electronics Congress (CIEP), Morelia, Mexico, October 1998, pp. 76–81.
-
19)
-
4. Cecati, C., Dell'Aquila, A., Liserre, M.: ‘A novel three-phase single-stage distributed power inverter’, IEEE Trans. Power Electron., 2004, 19, (5), pp. 1226–1233 (doi: 10.1109/TPEL.2004.835112).
-
20)
-
22. Zhu, G.R., Tan, S.C., Chen, Y., et al: ‘Mitigation of low-frequency current ripple in fuel-cell inverter systems through waveform control’, IEEE Trans. Power Electron., 2013, 28, (2), pp. 779–792 (doi: 10.1109/TPEL.2012.2205407).
-
21)
-
17. Liu, C., Lai, J.S.: ‘Low frequency current ripple reduction technique with active control in a fuel cell power system with inverter load’, IEEE Trans. Power Electron., 2007, 22, (4), pp. 1429–1436 (doi: 10.1109/TPEL.2007.900594).
-
22)
-
19. Tsang, C.W., Foster, M., Stone, D., et al: ‘Active current ripple cancellation in parallel connected buck converter modules’, IET Power Electron., 2013, 6, (4), pp. 721–731 (doi: 10.1049/iet-pel.2012.0383).
-
23)
-
7. Hu, H.B., Harb, S., Kutkut, N., et al: ‘Power decoupling techniques for micro-inverters in PV systems – a review’. IEEE Energy Conversion Congress and Exposition (ECCE), Atlanta, USA, September 2010, pp. 3235–3240.
-
24)
-
14. Song, Y.J., Enjeti, P.N.: ‘A high frequency link direct DC/AC converter for residential fuel cell power systems’. Proc. IEEE Power Electronics Specialists Conf. (PESC), Aachen, Germany, June 2004, pp. 4755–4761.
-
25)
-
6. Stevens, J.L., Shaffer, J.S., Vandenham, J.T.: ‘The service life of large aluminum electrolytic capacitors: effects of construction and application’. IEEE Industry Applications Conf. (IAS), Chicago, USA, June 2001, pp. 2493–2499.
-
26)
-
21. Zhu, G.P., Ruan, X.B., Wang, X.H., et al: ‘Suppression of the second harmonic current and improvement of the dynamic performance for two-stage single-phase inverters:’. Proc. IEEE Int. Conf. on Automation Science and Engineering (CSEE), Madison, USA, August 2013, pp. 72–80.
-
27)
-
9. Kok, D., Morris, A., Knowles, M., et al: ‘Battery ripple effects in cascaded and parallel connected converters’, IET Power Electron., 2015, 8, (5), pp. 841–849 (doi: 10.1049/iet-pel.2014.0224).
-
28)
-
16. Song, Y.J., Han, S.B., Li, X., et al: ‘A power control scheme to improve the performance of a fuel cell hybrid power source for residential application’. Proc. IEEE Power Electronics Specialists Conf (PESC), Orlando, USA, June 2007, pp. 1261–1266.
-
29)
-
26. Caceres, R., Barbi, I.: ‘Sliding mode controller for the boost inverter’. IEEE Power Electronics Congress (CIEP), Cuernavaca, Mexico, October 1996, pp. 247–252.
http://iet.metastore.ingenta.com/content/journals/10.1049/iet-pel.2015.0603
Related content
content/journals/10.1049/iet-pel.2015.0603
pub_keyword,iet_inspecKeyword,pub_concept
6
6