Transformerless Single-Phase Universal Active Filter With UPS Features and Reduced Number of Electronic Power Switches

This paper presents an universal active power filter for harmonic and reactive power compensation with uninterrupted power supplies (UPS) features. The configurations does not use transformer in the series part. Transformerless modern UPS systems have been rapidly replacing the old technology due to their performance and size attributes. Reducing the numbers of passive elements and/or switches in active power filters and UPS topologies not only reduces the cost of the whole system but also provides some advantages, such as great compactness, smaller weight, and higher reliability. However, the cost reduction requires the use of more complex control strategies. The model of the proposed system is derived and it is observed that the system can be reconfigurable to operate with four or three leg depending on the issue. A complete control system, including the pulsewidth modulation techniques, is developed and a comparison between the proposed filter and the standard one is done, as well. Simulated and experimental results validate the theoretical considerations.

[1]  Hirofumi Akagi.  Trends in active power line conditioners , 1994 .

[2]  Otacilio M. Almeida,et al.  The Transformerless Single-Phase Universal Active Power Filter for Harmonic and Reactive Power Compensation , 2014, IEEE Transactions on Power Electronics.

[3]  C. B. Jacobina,et al.  Single-phase uninterruptible power system topology concepts: Application to an universal active filter , 2011, 2011 IEEE Energy Conversion Congress and Exposition.

[4]  L.P. Kunjumuhammed,et al.  A control algorithm for single-phase active power filter under non-stiff voltage source , 2006, IEEE Transactions on Power Electronics.

[5]  Qiaofu Chen,et al.  A Novel Active Power Filter for High-Voltage Power Distribution Systems Application , 2007, IEEE Transactions on Power Delivery.

[6]  M. Cirrincione,et al.  A Single-Phase DG Generation Unit With Shunt Active Power Filter Capability by Adaptive Neural Filtering , 2006, IEEE Transactions on Industrial Electronics.

[7]  S. Fukuda,et al.  A novel current tracking method for active filters based on a sinusoidal internal model , 2000, Conference Record of the 2000 IEEE Industry Applications Conference. Thirty-Fifth IAS Annual Meeting and World Conference on Industrial Applications of Electrical Energy (Cat. No.00CH37129).

[8]  Ali Emadi,et al.  A new reduced parts on-line single-phase UPS system , 2003, IECON'03. 29th Annual Conference of the IEEE Industrial Electronics Society (IEEE Cat. No.03CH37468).

[9]  Kamal Al-Haddad,et al.  A review of active filters for power quality improvement , 1999, IEEE Trans. Ind. Electron..

[10]  Wenyan Nie,et al.  A research on circuit topology of new single-phase dual inverters UPS , 2011, 2011 International Conference on Computer Science and Service System (CSSS).

[11]  Ali Emadi,et al.  Reduced parts single-phase series-parallel UPS systems with active filter capabilities , 2003, The 25th International Telecommunications Energy Conference, 2003. INTELEC '03..

[12]  Fang Zheng Peng,et al.  Power factor correction using a series active filter , 2003, IEEE 34th Annual Conference on Power Electronics Specialist, 2003. PESC '03..

[13]  H.-L. Jou,et al.  Simplified control method for the single-phase active power filter , 1996 .

[14]  Alessandro Goedtel,et al.  Single-phase Power Quality Conditioners with series-parallel filtering capabilities , 2011, 2011 IEEE International Symposium on Industrial Electronics.

[15]  Hasan Komurcugil,et al.  A new control strategy for single-phase shunt active power filters using a Lyapunov function , 2006, IEEE Transactions on Industrial Electronics.

[16]  A. Nasiri.  Digital Control of Three-Phase Series-Parallel Uninterruptible Power Supply Systems , 2007, IEEE Transactions on Power Electronics.

[17]  David A. Torrey,et al.  Single-phase active power filters for multiple nonlinear loads , 1995 .

[18]  Ali Emadi,et al.  Reduced parts three-phase series-parallel UPS system with active filter capabilities , 2003, 38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, 2003..

[19]  N J.,et al.  Transformerless Hybrid Power Filter Based On a Six-Switch Two-Leg Inverter for Improved Harmonic Compensation Performance , 2016 .

[20]  F. Blaabjerg,et al.  Detection is key - Harmonic detection methods for active power filter applications , 2007, IEEE Industry Applications Magazine.