Phase synchronization in the system of supply voltage parameters correction by the adaptive filtration method

An adaptive phase-locked loop is considered, which makes it possible to improve the stability of synchronous active filters, to achieve compensation for high-quality harmonic components of the current consumed by autonomous objects. Therefore, the use of such an active filter will improve the power quality and the normal trouble-free operation of the equipment in general. A control system with an adaptive phase-locked loop often has the advantages of a reliable and efficient control system. It makes it possible to quickly respond to dynamic changes in the load, which is typical for the operation of functional equipment of autonomous objects. The control system becomes more flexible, reliable, efficient and provides an instantaneous value of the compensation current from the measured values of the load current curve. Calculations can be carried out in real time. LMS, NLMS, RLS algorithms are considered as adjusting the weighted adaptive phase-locked loop in the system for correcting the supply voltage parameters. Based on the simulation of algorithms carried out in the MATLAB environment, a comparative analysis of their effectiveness is made. It is shown that the NLMS algorithm has the highest suppression quality and minimum transient time. The NLMS algorithm works in real time and is recommended for use in the supply voltage correction system.

1. Zhezhelenko I. V., Shidlovskii A. K., Pivnyak G. G., Saenko Yu. L., Noiberger N. A. Electromagnetic Compatibility of Consumers. Moscow, Mashinostroenie Publ., 2012. 351 p. (in Russian).

2. Zinov’ev G. S. Power Electronics. 5th ed., rev. and add. Moscow, Jurajt Publ., 2012. 667 p. (in Russian).

3. Robles E., Ceballos S., Pou J., Zaragoza J., Gabiola I. Grid Synchronization Method Based on a Quasi-Ideal Low-Pass Filter Stage and a Phase- Locked Loop. IEEE Power Electronics Specialists Conference, Jun. 15–19, 2008, Rodhes, Greece, pp. 4056–4061. https://doi.org/10.1109/pesc.2008.4592588

4. Hsieh G., Hung J. Phase-Locked Techniques – A Survey. IEEE Transaction on Industrial Electronics, 1996, vol 43, no. 6, pp. 609–615. https://doi.org/10.1109/41.544547

5. Brabandere K., Loix T., Engelen K., Bolsens B., Van den Keybus J., Driesen J., Belmans R. Design and Operation of a Phase- Locked Loop with Kalman Estimator-Based Filter for Single-Phase Applications. IECON 2006 - 32nd Annual Conference on IEEE Industrial Electronics, pp. 525–530. https://doi.org/10.1109/iecon.2006.348099

6. Jovcic J. Phase Locked Loop System for FACTS. IEEE Transaction on Power Systems, 2003, vol. 18, no. 3, pp. 1116–1124. https://doi.org/10.1109/tpwrs.2003.814885

7. Borisov P. A., Poljakov N. A. Synchronization of three-phase active voltage rectifiers with the mains. Nauchno-tehnicheskii vestnik informacionnyh tehnologii, mehaniki i optiki = Scientific and Technical Journal of Information Technologies, Mechanics and Optics, 2012, no. 4 (80), pp. 55–60 (in Russian).

8. Kaura V., Blasko V. Operation of a phase locked loop system under distorted utility conditions. IEEE Transactions on Industry Application, 1997, vol. 33, iss. 1, pp. 58–63. https://doi.org/10.1109/28.567077

9. Chung, S.-K. Phase-locked loop for grid connected three-phase power conversion systems. IEEE Proceeding Electric Power Application, 2000, vol. 147, iss. 3, pp. 213–219. https://doi.org/10.1049/ip-epa:20000328

10. Chizhima S. N. Improvement of Methods and Means of Quality Control of Electricity and Power Components in Electric Power Systems with Traction Load. Novosibirsk, 2014. 367 p. (in Russian).

11. Dzhigan V. I. Adaptive Signal Filtering: Theory and Algorithms. Moscow, Tehnosfera Publ., 2013. 528 p. (in Russian).

12. Akagi H., Kanazawa Y., Nabae A. Generalized Theory of the Instantaneous Reactive Power in Three-Phase Circuits. IPEC'83 – Int. Power Electronics Conf. Tokyo, 1983, pp. 1375–1386.

13. Han Y., Khan M. M., Chen C. A novel harmonic-free power factor corrector based on T-type APF with adaptive linear neural network (ADALINE) control. Simulation Modeling Practice & Theory, 2008, vol 16, iss. 9, pp. 1215–1238. https://doi.org/10.1016/j.simpat.2008.06.002

14. D’yakonov V. MATLAB. Signal and Іmage Processing. St. Petersburg, Piter Publ., 2002. 608 p. (in Russian).

15. Bychkov B. I., Romanovskii A. S., Hartonov V. Ja. Synchronization of three-phase active voltage rectifiers with the mains. Radiooptika [Radio Optics], 2016, no. 5, pp. 11–25 (in Russian).