Design and Implementation of a New Adaptive Sliding Mode for Current Control in Islanding Mode Operation
Subject Areas : electrical and computer engineeringM. M. Ghanbarian 1 , M. Nayeripour 2 , A. H. Rajaei 3
1 -
2 -
3 -
Keywords: Smart grid adaptive sliding mode controller AC/DC converter voltage control current control,
Abstract :
This paper proposes a new modified adaptive sliding mode controller in order to control the inverters of DGS in the voltage and current (power) control modes in a microgrid. An observer is used to estimate the uncertain parameters in controller design and considering these estimated values, the controller is adapted to new condition. In the power management strategy, one of inverter controls the voltage and the other inverter controls the load current and balances the active power. Due to delays in startup power electronic converter and sliding mode controller, the result of controller implementation with classical controllers does not meet the requirement and so, considering these delays with adaptive controller, the performance will be improved considerably and the reference signal will be tracked with lower steady state error in comparison with classical sliding mode controller. Moreover, this controller reduces the total harmonic distortion and improves the rms and peak value tracking. Implementation of system using DSP/TMS320F28335 as well as MATLAB simulation validates the performance of system in different conditions.
[1] B. Kroposki, T. Basso, and R. DelBlasio, "Microgrid standards and technologies," IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century, 20-24 July 2008.
[2] H. K. Kang, C. H. Yoo, I. Y. Chung, D. J. Won, and S. I. Moon, "Intelligent coordination method of multiple distributed resources for armonic current compensation in a micro-grid," J. Elect. Eng. Technol., vol. 7, no. 6, pp. 834-844, Nov. 2012.
[3] I. Kumarswamy, T. Kalyani Sandipamu, and V. Prasanth, "Analysis of islanding detection in distributed generation using fuzzy logic technique," in Proc. 7th Asia, IEEE Modelling Symp., AMS'07, pp. 3-7, Oct. 2013.
[4] Y. Liu, H. Wang, and C. Hou, "Sliding-mode control design for nonlinear systems using probability density function shaping," IEEE Trans. on Neural Networks and Learning Systems, vol. 25, no. 2, pp. 332-343, Feb. 2014.
[5] S. Bhat and H. N. Nagaraja, "DSP based proportional integral sliding mode controller for photo-voltaic system," International J. of Electrical Power & Energy Systems, vol. 71, pp. 123-130, 2015.
[6] H. Karimi, H. Nikkhajoei, and R. Iravani, "Control of an electronically coupled distributed resource unit subsequent to an islanding event," IEEE Trans. Power Del., vol. 23, no. 1, pp. 493-501, Jan. 2008.
[7] H. Karimi, A. Yazdani, and R. Iravani, "Robust control of an autonomous four-wire electronically-coupled distributed generation unit," IEEE Trans. Power Del., vol. 26, no. 1, pp. 455-466, Jan. 2011.
[8] M. B. Delghavi and A. Yazdani, "Islanded-mode control of electronically coupled distributed-resource units under unbalanced and nonlinear load conditions," IEEE Trans. Power Del., vol. 26, no. 2, pp. 661-673, Apr. 2011.
[9] D. Santos-Martin, J. L. Rodriguez-Amenedo, and S. Arnalte, "Direct power control applied to doubly fed induction generator under unbalanced grid voltage conditions," IEEE Trans. Power Electron., vol. 23, no. 5, pp. 2328-2336, Nov. 2008.
[10] F. Delfino, F. Pampararo, R. Procopio, and M. Rossi, "A feedback linearization control scheme for the integration of wind energy conversion systems into distribution grids," IEEE Systems Journal, vol. 6, no. 1, pp. 85-93, Mar. 2012.
[11] D. Noriega-Pineda, G. Espinosa-Perez, A. Varela-Vega, and S. Horta-Mejia, "Experimental evaluation of an adaptive nonlinear controller for single-phase UPS," in Proc. of the 2001 IEEE Int. Conf. on Control Applications, CCA'01, pp. 254-258, Sep. 2001.
[12] W. L. Lu, S. N. Yeh, J. C. Hwang, and H. P. Hsieh, "Development of a single-phase half-bridge active power filter with the function of uninterruptible power supplies," IEE Proceedings - Electric Power Applications, vol. 147, no. 4, pp. 313-319, Jul. 2000.
[13] N. M. Abdel-Rahim and J. E. Quaicoe, "Analysis and design of a multiple feedback loop control strategy for single-phase voltage-source UPS inverters," IEEE Trans. on Power Electronics, vol. 11, no. 4, pp. 532-541, Jul. 1996.
[14] W. Wang, H. Yin, and L. Guan, "A direct power control scheme for three-phase PWM rectifiers based on sliding-mode variable structure control theory," in Proc. Int. Conf. on Power Electronics and Drive System, PEDS'09, pp. 837-842, 2-5 Nov. 2010.
[15] A. Hemdani, M. W. Naouar, I. Slama-Belkhodja, and E. Monmasson, "FPGA-based sliding mode direct power control of three-phase PWM boost rectifier," in Proc. 14th European Conf. on Power Electronics and Applications, EPE'11, 10 pp., Sep. 2011.
[16] X. X. Yin, Y. G. Lin, W. Li, Y. J. Gu, H. W. Liu, and P. F. Lei, "A novel fuzzy integral sliding mode current control strategy for maximizing wind power extraction and eliminating voltage harmonics," Energy, vol. 85, pp. 677-686, Jun. 2015.
[17] S. Oucheriah and L. Guo, "PWM-based adaptive sliding-mode control for boost DC-DC converters," IEEE Trans. on Industrial Electronics, vol. 60, no. 8, pp. 3291-3294, Aug. 2013.
[18] V. Utkin, J. Guldner, and J. Shi, Sliding Mode Control in Electro-Mechanical Systems, New York: Taylor & Francis, 2009.
