Controlled single-phase current source with LCL filter

This study proposes control algorithm for controlled single-phase current source. The power circuit of single-phase current source uses LCL type filter instead of a traditional L filter. The main advantage of LCL filter is lower current ripple, but it is necessary to use the advanced current control. Designed control algorithm combines model based (feedforward) control with a feedback direct current control based on resonant controllers, moreover use harmonic compensator and vector control to compensate for drops on LCL filter. Behaviour of designed control is analyzed by experiments made on developed low voltage laboratory prototype.

[1]  Matti Lehtonen,et al.  Characteristics of earth faults in power systems with a compensated or an unearthed neutral , 1997 .

[2]  J. Talla,et al.  Current reference generator for single-phase shunt active power filters based on MGP-FIR , 2012, IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society.

[3]  S. K. Mazumder,et al.  A low-device-count single-stage direct-power-conversion solar microinverter for microgrid , 2012, 2012 3rd IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG).

[4]  Zdenek Peroutka,et al.  Compensation of low-frequency disturbances for traction converter with medium-frequency transformer for multi-system suburban units , 2010, Proceedings of 14th International Power Electronics and Motion Control Conference EPE-PEMC 2010.

[5]  Y. Kumsuwan,et al.  A phase-shifted carrier-based PWM technique for cascaded h-bridge inverters application in standalone PV system , 2012, 2012 15th International Power Electronics and Motion Control Conference (EPE/PEMC).

[6]  P. Mutschler,et al.  Advanced control scheme for a single-phase PWM rectifier in traction applications , 2003, 38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, 2003..

[7]  J. Talla,et al.  Elimination of dead-time effect causing current distortion of single-phase power converters , 2012, 2012 15th International Power Electronics and Motion Control Conference (EPE/PEMC).

[8]  M.M. Nordman,et al.  Design of a concept and a wireless ASIC sensor for locating Earth faults in unearthed electrical distribution networks , 2006, IEEE Transactions on Power Delivery.

[9]  Hao Ma,et al.  Investigation on control strategies for LCL-filtered voltage-source converter , 2012, 2012 IEEE International Symposium on Industrial Electronics.

[10]  G. Garcera,et al.  Modelling and control of a 100kW photovoltaic inverter with an LCL grid filter for distributed power systems , 2007, 2007 European Conference on Power Electronics and Applications.

[11]  Matti Lehtonen,et al.  Neutral point treatment and earth fault suppression , 2012, 2012 Electric Power Quality and Supply Reliability.

[12]  Pavel Drabek,et al.  Novel primary high voltage traction converter topology for multi-system locomotives , 2009, 2009 IEEE Energy Conversion Congress and Exposition.

[13]  Alfred Rufer,et al.  Fictive Axis Emulator-based state feedback vector current control for single-phase voltage source converters , 2013, IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society.

[14]  L J Kingrey,et al.  Applying high resistance neutral grounding in medium voltage systems , 2010, 2010 Record of Conference Papers Industry Applications Society 57th Annual Petroleum and Chemical Industry Conference (PCIC).

[15]  Zdenek Peroutka,et al.  Traction converter with medium-frequency transformer for railway applications: Direct current control of primary active rectifiers , 2009, 2009 13th European Conference on Power Electronics and Applications.