Dynamic Characteristics of Integral Gain Changeable Digital Control DC-DC Converter for Suppression of Output Capacitance

Kazuhiro Kajiwara, Hidenobu Tajima, Hidenori Maruta, Fujio Kurokawa, Ilhami Colak

Abstract


Stability of power converters has become more and more important in the hybrid green energy system because of its difficulties to maintain a stable dc-bus. This paper presents dynamic characteristics of a digital integral gain changeable control dc-dc converter to realize the high stability with suppression of the output capacitance. The integral gain changeable control method uses a variable integral gain, which is changed by the value of load current. The stability analysis is conducted by Bode diagrams. It is shown that the transient response and stability of the integral gain changeable method are better than the conventional fixed integral gain control method even if the output capacitance is smaller than the conventional method. Simulation and experimental results show the effectiveness of our concept presented.

Keywords


dc-dc converter; digital control; integral gain; stability analysis; transient response; output capacitance

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References


Key World Energy Statistics 2015, International Energy Agency, Nov. 2015.

H. H. Abdeltawab and Y. A. I. Mohamed, “Market-oriented energy management of a hybrid wind-battery energy storage system via model predictive control with constraint optimizer,†IEEE Trans. on Industrial Electronics, vol. 62, no. 11, pp. 6658–6670, Nov. 2015.

D. B. W. Abeywardana, B. Hredzak, and V. G. Agelidis, “Single-phase grid-connected LiFePO4 battery-supercapacitor hybrid energy storage system with interleaved boost inverter,†IEEE Trans. on Power Electronics, vol. 30, no. 10, pp. 5591–5604, Oct. 2015.

F. Zhang, Y. Yang, C. Ji, W. Wei, Y. Chen, C. Meng, Z. Jin, and G. Zhang, “Power management strategy research for dc microgrid with hybrid storage system,†Proc. of IEEE First International Conference on DC Microgrids, pp. 62–68, Jun. 2015.

A. M. Dizqah, A. Maheri, K. Busawon, and A. Kamjoo, “A multivariable optimal energy management strategy for standalone dc microgrids,†IEEE Trans. on Power Systems, vol. 30, no. 5, pp. 2278–2287, Sep. 2015.

A. Werth, N. Kitamura, and K. Tanaka, “Conceptual study for open energy systems: distributed energy network using interconnected dc nanogrids,†IEEE Trans. on Smart Grid, vol. 6, no. 4, pp. 1621–1630, Jul. 2015.

C. Wang, X. Li, L. Guo, and Y. W. Li, “A nonlinear-disturbance-observer-based dc-bus voltage control for a hybrid ac/dc microgrid,†IEEE Trans. on Power Electronics, vol. 29, no. 11, pp. 6162–6177, Nov. 2014.

C. Zhao, S. Dong, F. Li, and Y. Song, “Optimal home energy management system with mixed types of loads,†CSEE Journal of Power and Energy Systems, vol. 1, no. 4, pp. 29–37, Dec. 2015.

S. Lim, J. Ranson, D. M. Otten, and D. J. Perreault, “Two-stage power conversion architecture suitable for wide range input voltage,†IEEE Trans. on Power Electronics, vol. 30, no. 2, pp. 805–816, Feb. 2015.

S. Guo, Y. Gao, Y. Xu, X. Lin-shi, and B. Allard, “Digital PWM controller for high-frequency low-power DC-DC switching mode power supply,†Proc. of IEEE International Power Electronics and Motion Control Conference, pp. 1340–1346, May 2009.

A. Costabeber, P. Mattavelli, S. Saggini, and A. Bianco, “Digital autotuning of DC-DC converters based on a model reference impulse response,†IEEE Trans. on Power Electronics, vol. 26, no. 10, pp. 2915–2924, Oct. 2011.

Z. Shen, N. Yan, and H. Min, “A multimode digitally controlled boost converter with PID autotuning and constant frequency/constant off-time hybrid PWM control,†IEEE Trans. on Power Electronics, vol. 26, no. 9, pp. 2588–2598, Sept. 2011.

V. Arikatla and J. a. Abu Qahouq, “An adaptive digital PID controller scheme for power converters,†Proc. of IEEE Energy Conversion Congress and Exposition, pp. 223–227, Sept. 2010.

M. Shirazi, R. Zane, and D. Maksimovic, “An autotuning digital controller for dc-dc power converters based on online frequency-response measurement,†IEEE Trans. on Power Electronics, vol. 24, no. 11, pp. 2578–2588, Nov. 2009.

Y. Furukawa, S. Hirotaki, S. Watanabe, F. Kurokawa, N. Matsui and I. Colak, “A consideration of transient response for sensorless model control dc-dc converter,†Proc. of IEEE International Telecommunications Energy Conference, pp. 936-941, Oct. 2015.

K. Kajiwara, H. Tajima, F. Kurokawa, “Wide input and load integral gain changeable digital control dc-dc converter,†International Journal of Renewable Energy Research, vol. 5, no. 4, pp. 1212-1219, Dec. 2015.

H. Matsuo, F. Kurokawa, and K. Higashi, “Dynamic characteristics of the digitally controlled dc-dc converter,†IEEE Trans. on Power Electronics, vol. 4, no. 4, pp. 419–426, Oct. 1989.




DOI (PDF): https://doi.org/10.20508/ijrer.v6i1.3452.g6779

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