1911

A comprehensive control strategy of railway power quality compensator for AC traction power supply systems

The development of electrical railway systems leads to critical power quality problems in the power grid. This paper discusses a kind of half-bridge-based railway power quality compensator system (HBRPQC) that can compensate negative sequence currents, harmonics, and reactive power simultaneously. In order to keep the HBRPQC performance efficient for the different kinds of transformers used in traction power supply substations, a new multifunctional control strategy that performs better than previous methods is proposed. Due to the fast dynamicity of traction loads, a recessive self-tuning PI controller based on fuzzy logic is adopted in the current control system. The output control variables are integrated with carrier-based pulse width modulation techniques to generate the pulse signals of HBRPQC switches. The performance of the proposed control strategy is verified for V/V, Yd11, and Scott transformers by simulation and the results prove the effectiveness of the strategy.

PDF

___

[1] Sutherland PE, Waclawiak M, Mcgranaghan MF. System impacts evaluation of a single-phase traction load on a 115-kV transmission system. IEEE T Power Deliver 2006; 21: 837-844.
[2] Morrison RE. Power quality issues on ac traction systems. In: IEEE 9th International Conference of Harmonics and Quality of Power; 14 October 2000; Orlando, FL, USA. pp. 709-714.
[3] Ozgonenel O, Yalcin T, Guney I, Kurt U. A new classification for power quality events in distribution system. Electr Pow Syst Res 2013; 95: 192-199.
[4] Yalcin T, Ozgonenel O, Kurt U. Feature vector extraction by using empirical mode decomposition for power quality disturbances. In: 10th EEEIC Conference; 811 May 2011; Rome, Italy.
[5] Wang H, Tian Y, Gui Q. Evaluation of negative sequence current injection into the public grid from different traction substation in electrical railways. In: IEEE 20th International Conference of Exhibition on Electricity Distribution; 811 June 2009; Prague, Czech Republic. pp. 1-4.
[6] Ming-Li D, Guang-Ning W, Xueyuan Z, Chun-Li F, Chang-Hong H, Qiang Y. The simulation analysis of harmonics and negative sequence with a Scott wiring transformer. In: IEEE International Conference of Condition Monitoring and Diagnosis, 2124 April 2008; Beijing, China. pp. 513-516.
[7] Komrska T, Z´ak J, Peroutka Z. Reactive power and harmonic currents compensation in traction systems using active ˇ power filter with DFT-based current reference generator. In: IEEE 13th European Conference Power Electronics and Applications; 810 September 2009; Barcelona, Spain. pp. 1-10.
[8] Coventry A. Resultant reactive power of overhead lines. IEE-Proc C 1956; 103: 334-337.
[9] Lee H, Lee C, Jang G, Kwon S. Harmonic analysis of the Korean high-speed railway using the eight-port representation model. IEEE T Power Deliver 2006; 21: 979-986.
[10] Tan PC, Loh PC, Holmes DG. Optimal impedance termination of 25-kV electrified railway systems for improved power quality. IEEE T Power Deliver 2005; 20: 1703-1710.
[11] Ozg¨onenel O, Terzi ¨ UK, Khan A. A hybrid approach for power quality monitoring. Turk J Electr Eng Co 2012; 20: ¨ 854-869.
[12] Terciyanli A, A¸cık A, C¸ etin A, Ermis M, C¸ adırcıI, Ermis C, Demirci T, Bilgin HF. Power quality solutions for light rail public transportation systems fed by medium-voltage underground cables. IEEE T Ind App 2012; 487: 1017-1029.
[13] Singh B, Al-Haddad K, Chandra A. A review of active filters for power quality improvement. IEEE T Ind Elec 1999; 46: 960-971.
[14] Ozgonenel O, Thomas DWP, Yalcin T. Superiority of decision tree classifier on complicated cases for power system protection. In: The 11th International Conference on Developments in Power System Protection; 2326 April 2012; Birmingham, UK.
[15] Wu C, Luo A, Shen J, Ma F, Peng S. A negative sequence compensation method based on a two-phased three-wire converter for a high-speed railway traction power supply system. IEEE T Power Electr 2012; 27: 706-717.
[16] Ozgonenel O, Thomas DWP, Yalcin T, Bertizlioglu IN. Detection of blackouts by using K-means clustering in a power system. In: The 11th International Conference on Developments in Power System Protection; 2326 April 2012; Birmingham, UK.
[17] Zhang Z, Wu B, Kang J, Luo L. A multi-purpose balanced transformer for railway traction applications. IEEE T Power Deliver 2009; 24: 711-718.
[18] Huang CP, Wu CJ, Chuang YS, Peng SK, Yen JL, Han MH. Loading characteristics analysis of specially connected transformers using various power factor definitions. IEEE T Power Deliver 2006; 21: 1406-1413.
[19] Jafarikaleybar H, Kazemzadeh R, Farshad S. Power rating reduction of railway power quality compensator using Steinmetz theory. In: IEEE International Conference on Power Electronics, Drive Systems & Technology; 34 February 2015; Tehran, Iran. pp. 442-447.
[20] Zhu GP, Chen JY, Liu XY. Compensating for the negative sequence currents of electric railway based on SVC. In: Proceedings of the 3rd IEEE Conference on Industrial Electronics Application; 35 June 2008; Singapore. pp. 1958-1963.
[21] Sharma PR, Kumar A, Kumar N. Optimal location for shunt connected FACTS devices in a series compensated long transmission line. Turk J Electr Eng Co 2007; 15: 321-328.
[22] Li X, Zuo L. Research on balance compensation of STATCOM. In: Proceedings of the 2nd IEEE Conference on Industrial Electronics Applications; 2325 May 2007; Harbin, China. pp. 563-568.
[23] Tan PC, Loh PC, Holmes DG. A robust multilevel hybrid compensation system for 25-kV electrified railway applications. IEEE T Power Electr 2004; 19: 1043-1052.
[24] Tan PC, Morrison RE, Holmes DG. Voltage form factor control and reactive power compensation in a 25-kV electrified railway system using a shunt active filter based on voltage detection. IEEE T Ind Appl 2003; 39: 575- 581.
[25] Batard C, Machmoum M, Alvarez F, Ladoux P. Control of shunt active power filter for railway sub-station. In: Proceedings of the 32nd IEEE Conference on Industrial Electronics; 610 November 2006; Paris, France. pp. 2511- 2516.
[26] Mochinaga Y, Hisamizu Y, Takeda M, Miyashita T, Hasuike K. Static power compensator using GTO converters for AC electric railway. In: IEEE Proceedings of the Power Conversation Conference; 1921 April 1993; Yokohama, Japan. pp. 641-646.
[27] Luo A, Wu C, Shen J, Shuai Z, Ma F. Railway static power compensators for high-speed train traction power supply systems using three-phase V/V transformers. IEEE T Power Electr 2011; 26: 2844-2856.
[28] Shu Z, Xie S, Li Q. Single-phase back-to-back converter for active power balancing, reactive power compensation, and harmonic filtering in traction power system. IEEE T Power Electr 2011; 26: 334-343.
[29] Zhou L, Fu Q, Li X, Liu C. A novel multilevel power quality compensator for electrified railway. In: IEEE Proceedings of the 6th International Conference on Power Electronic Motion Control; 1720 May 2009; Wuhan, China. pp. 1141- 1147.
[30] Sun Z, Jiang X, Zhu D, Zhang G. A novel active power quality compensator topology for electrified railway. IEEE T Power Electr 2004; 19: 1036-1042.
[31] Ma F, Luo A, Xu X, Xiao H, Wu Ch, Wang W. Simplified power conditioner based on half-bridge converter for high-speed railway system. IEEE T Ind Electron 2013; 60: 728-738.
[32] Kalantari M, Sadeghi MJ, Farshad S, Fazel SS. Modeling and comparison of traction transformers based on the utilization factor definitions. International Review on Modelling and Simulations 2011; 4: 342-351.
[33] Kaleybar HJ, Farshad S, Asadi M, Jalilian A. Multifunctional control strategy of half-bridge based railway power quality conditioner for traction system. In: IEEE Proceedings of the 13th International Conference on Environment and Electrical Engineering; 13 November 2013; Wroclaw, Poland. pp. 207-212.
[34] Dai NY, Lao KW, Wong MC, Wong CK. Hybrid power quality compensator for co-phase power supply system in electrified railway. IET Power Electron 2012; 5: 1084-1094.
[35] Lao KW, Dai NY, Liu WG, Wong MC. Hybrid power quality compensator with minimum dc operation voltage design for high-speed traction power systems. IEEE T Power Electr 2013; 28: 2024-2036.
[36] Dordevic O, Jones M, Lev E. A comparison of PWM techniques for three-level five-phase voltage source inverters. In: IEEE Proceedings of the 14th International Conference on Power Electronics and Applications; 1 September 2011; Birmingham, UK. pp. 1-10.
[37] Visioli A. Fuzzy logic based set-point weight tuning of PID controllers. IEEE T Syst Man Cy A 1999; 29: 587-592.
[38] Karasakal O, Ye¸sil E, G¨uzelkaya M, Eksin ˙I. Implementation of a new self-tuning fuzzy PID controller on PLC. Turk J Electr Eng Co 2005; 13: 277-286.
[39] Luo A, Ma F, Wu C, Ding SQ, Zhong QC, Shuai Z. A dual-loop control strategy of railway static power regulator under V/V electric traction system. IEEE T Power Electr 2011; 26: 2079-2091.
[40] U¸car M, Ozdemir S¸, ¨ Ozdemir E. A unified series-parallel active filter system for non-periodic disturbances. Turk J ¨ Electr Eng Co 2011; 19: 575-596.
[41] Peng FZ, Mckecver JW, Adams DJ. A power line conditioner using cascade multilevel inverters for distribution systems. IEEE T Ind App 1998; 34: 1293-1298.