Browse > Article
http://dx.doi.org/10.1007/s43236-020-00198-1

CAN bus based current sharing control of high-power switching converters  

Ye, Qiujin (School of Mechanical and Automotive Engineering, South China University of Technology)
Zeng, Min (School of Mechanical and Automotive Engineering, South China University of Technology)
Zhang, Yingxian (School of Mechanical and Automotive Engineering, South China University of Technology)
Wu, Kaiyuan (School of Mechanical and Automotive Engineering, South China University of Technology)
Publication Information
Journal of Power Electronics / v.21, no.3, 2021 , pp. 529-540 More about this Journal
Abstract
A digital current sharing control method leveraging a CAN bus is developed to inhibit the fluctuating current distributions of parallel converters in high-output oxidation power systems. When compared to conventional current sharing strategies, the proposed design significantly reduces circuit complexity without resorting to an analog current sharing bus, and is extremely robust in maintaining system functionality against one or multiple module failures. The digital control design also features anti-interference among high-power switching converters. In addition to detailing the operation principles and mathematical deductions of the state-space average model, the design of a current sharing controller and a current sharing scheme based on a CAN bus are presented to analyze the steady-state operation of parallel converters and dynamic-state operation. Based on these observations, a proof-of-concept prototype was developed that offers a maximum output power of nearly 400 kW with a current sharing error (CSE) below 2.1%. In addition, this system features outstanding anti-interference capability in intense electromagnetic fields.
Keywords
Current sharing control; High-power switching converter; CAN bus; Power module;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Saggini, S., Ghioni, M., Geraci, A.: An innovative digital control architecture for low-voltage high-current dc-dc converters with tight voltage regulation. IEEE Trans. Power Electron. 19, 210-218 (2004)   DOI
2 De Andrade, R., Hodel, K.N., Justo, J.F., Lagana, A.M., Santos, M.M., Gu, Z.H.: Analytical and experimental performance evaluations of CAN-FD bus. IEEE Access 6, 21287-21295 (2018)   DOI
3 Jiang, C., Du, H., Wen, G.: Current sharing control for parallel DC-DC buck converters based on consensus theory. In: Proceedings of the 13th IEEE International Conference on Control and Automations, pp. 536-540, 2017.
4 Khalil, A., Mohamed, O., Wang, J.: Networked control of parallel DC/DC buck converters. In: Proceedings of the IEEE Jordan Conference in Application Electrical Engineering and Computer Technology, pp. 1-6. 2015.
5 Tahim, A.P.N., Pagano, D.J., Lenz, E., Stramosk, V.: Modeling and stability analysis of islanded DC Microgrids under droop control. IEEE Trans. Power Electron. 30(8), 4597-4607 (2015)   DOI
6 Peftitsis, D., Baburske, R., Rabkowski, J., Lutz, J., Tolstoy, G., Nee, H.P.: Challenges regarding parallel connection of SiC JFETs. IEEE Trans. Power Electron. 28(3), 1449-1463 (2013)   DOI
7 Zhang, W., Liu, W., Zang, C., Liu, L.: Multiagent system-based integrated solution for topology identification and state estimation. IEEE Trans. Ind. Inf. 13(2), 714-724 (2017)   DOI
8 Chen, W., Wang, G.: Decentralized voltage-sharing control strategy for fully modular input-series-output-series system with improved voltage regulation. IEEE Trans. Ind. Electron. 62(5), 2777-2787 (2015)   DOI
9 Rabkowski, J., Peftitsis, D., Nee, H.P.: Parallel-operation of discrete SiC BJTs in a 6-kW/250-kHz dc/dc boost converter. IEEE Trans. Power Electron. 29(5), 2482-2491 (2014)   DOI
10 Wang, J.B.: Parallel DC/DC converters system with a novel primary droop current sharing control. IET Power Electron. 5(8), 1569-1580 (2012)   DOI
11 Mao, Z.: Research on Current Sharing of Electroplate Power Supply Based on Magnetic Switching Control. Zhejiang University, Hangzhou (2006)
12 Yan, H., Xu, Y.X., Zou, J.B., Wang, B.C., Jiang, S.L.: A maximum current sharing method for dual-redundancy brushless DC Motor control. In: Proceedings of the 17th International Conference on Electrical, Machines and Systems, pp. 1057-1061, 2015.
13 Ashiebi, A., Khalil, A., Wang, J.: Networked control of parallel DC/DC converters over CAN bus. In: Proceedings of the IEEE International Conference on Power System Technology, pp. 1-6, 2016.
14 Fugiglando, U., Massaro, E., Santi, P., Milardo, S., Abida, K., Stahlmann, R., Netter, F., Ratti, C.: Driving behavior analysis through CAN bus data in an uncontrolled environment. IEEE Trans. Intell. Transport Syst. 20(2), 737-748 (2019)   DOI
15 Li, Q., Liu, S., Xu, H., Wang, X.: Research on the maximum current automatic current-sharing control based on DSP. In: Proceedings of the 13th IEEE International Conference on Control Automations, pp. 1044-1049, 2017.
16 Yao, W., Hong, X., Lu, Z.: A novel current-sharing scheme based on magamp. J. Zhejiang Univ. Sci. A 9(8), 1150-1156 (2008)   DOI
17 Qu, L., Zhang, D., Bao, Z.: Output current-differential control scheme for input-series-output-parallel-connected modular DC-DC converters. IEEE Trans. Power Electron. 32(7), 5699-5711 (2017)   DOI
18 Liu, H., Yang, Y., Wang, X., Loh, P.C., Blaabjerg, F., Wang, W., Xu, D.: An enhanced dual droop control scheme for resilient active power sharing among paralleled two-stage converters. IEEE Trans. Power Electron. 32(8), 6091-6104 (2017)   DOI
19 Chen, S.Y., Yang, B.C., Pu, T.A., Chang, C.H., Lin, R.C.: Active current sharing of a parallel DC-DC converters system using bat algorithm optimized two-DOF PID control. IEEE Access 7, 84757-84769 (2019)   DOI
20 Abramov, E., Vekslender, T., Kirshenboim, O., Peretz, M.M.: Fully-integrated digital average current-mode control voltage regulator module IC. IEEE J. Emerg. Sel. Topics Power Electron. 6(2), 485-499 (2018)   DOI
21 Genc, N., Iskender, I.: DSP-based current sharing of average current controlled two-cell interleaved boost power factor correction converter. IET Power Electron. 4(9), 1015-1022 (2011)   DOI
22 Effler, S., Halton, M., Rinne, K.: Efficiency-based current distribution scheme for scalable digital power converters. IEEE Trans. Power Electron. 26(4), 1261-1269 (2011)   DOI
23 Fang, W., Liu, X.D., Liu, S.C., Liu, Y.F.: A digital parallel current-mode control algorithm for DC-DC converters. IEEE Trans. Ind. Inf. 10(4), 2146-2153 (2014)   DOI
24 Chae, S., Song, Y., Park, S., et al.: Digital current sharing method for parallel interleaved DC-DC converters using input ripple voltage. IEEE Trans. Ind. Inf. 8(3), 536-5441 (2012)   DOI