Internal Dynamics Stabilization of Single-Phase Power Converters With Lyapunov-Based Automatic-Power-Decoupling Control

Single-phase power converters with the active pulsating-power-buffering (PPB) function are essentially highly coupled and nonlinear systems. Advanced control techniques are needed for this emerging class of converters to achieve fast transient response and large-signal stability. Existing control solutions are based on either 1) linear control techniques that are operating-point specific or 2) nonlinear control techniques that are generally topology-dependent. The proposed work is an evolved generalized feedback-linearization (FBL) control approach that incorporates the direct Lyapunov control method. The proposed control provides good stabilization of the internal dynamics of the system (which is unviable with FBL control) while still retaining all the best features of FBL control. A kind of single-phase power conversion system with active PPB is described. It is shown that FBL control naturally destabilizes the system and that the proposed control can globally stabilize the system under various operating conditions while yielding fast dynamics.

[1]  Xinbo Ruan,et al.  A Flicker-Free Electrolytic Capacitor-Less AC–DC LED Driver , 2011, IEEE Transactions on Power Electronics.

[2]  Philip T. Krein,et al.  Cost-Effective Hundred-Year Life for Single-Phase Inverters and Rectifiers in Solar and LED Lighting Applications Based on Minimum Capacitance Requirements and a Ripple Power Port , 2009, 2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition.

[3]  Zitao Liao,et al.  A 2 kW, single-phase, 7-level, GaN inverter with an active energy buffer achieving 216 W/in3 power density and 97.6% peak efficiency , 2016, 2016 IEEE Applied Power Electronics Conference and Exposition (APEC).

[4]  J. W. Kolar,et al.  Ultra-compact Power Pulsation Buffer for single-phase DC/AC converter systems , 2016, 2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia).

[5]  Yao Sun,et al.  A Single-Phase PFC Rectifier With Wide Output Voltage and Low-Frequency Ripple Power Decoupling , 2018, IEEE Transactions on Power Electronics.

[6]  F. Wang,et al.  A High Power Density Single-Phase PWM Rectifier With Active Ripple Energy Storage , 2010, IEEE Transactions on Power Electronics.

[7]  D. Bortis,et al.  The ideal switch is not enough , 2016, 2016 28th International Symposium on Power Semiconductor Devices and ICs (ISPSD).

[8]  P. T. Krein,et al.  Minimum Energy and Capacitance Requirements for Single-Phase Inverters and Rectifiers Using a Ripple Port , 2012, IEEE Transactions on Power Electronics.

[9]  Siew-Chong Tan,et al.  On Nonlinear Control of Single-Phase Converters With Active Power Decoupling Function , 2019, IEEE Transactions on Power Electronics.

[10]  J. W. Kolar,et al.  Interleaved Triangular Current Mode (TCM) resonant transition, single phase PFC rectifier with high efficiency and high power density , 2010, The 2010 International Power Electronics Conference - ECCE ASIA -.

[11]  Siew-Chong Tan,et al.  Direct AC/DC Rectifier With Mitigated Low-Frequency Ripple Through Inductor-Current Waveform Control , 2015, IEEE Transactions on Power Electronics.

[12]  Siew-Chong Tan,et al.  A Single-Phase Three-Level Flying-Capacitor PFC Rectifier Without Electrolytic Capacitors , 2019, IEEE Transactions on Power Electronics.

[13]  Hui Wang,et al.  Automatic Power Decoupling Controller of Dependent Power Decoupling Circuit for Enhanced Transient Performance , 2019, IEEE Transactions on Industrial Electronics.

[14]  Siew-Chong Tan,et al.  Enhanced Automatic-Power-Decoupling Control Method for Single-Phase AC-to-DC Converters , 2018, IEEE Transactions on Power Electronics.

[15]  S.R. Sanders,et al.  Lyapunov-based control for switched power converters , 1990, 21st Annual IEEE Conference on Power Electronics Specialists.

[16]  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.

[17]  Siew-Chong Tan,et al.  A Single-Stage Two-Switch PFC Rectifier With Wide Output Voltage Range and Automatic AC Ripple Power Decoupling , 2017, IEEE Transactions on Power Electronics.

[18]  Mei Su,et al.  An Active Power-Decoupling Method for Single-Phase AC–DC Converters , 2014, IEEE Transactions on Industrial Informatics.

[19]  Robert C. N. Pilawa-Podgurski,et al.  A High Power Density Series-Stacked Energy Buffer for Power Pulsation Decoupling in Single-Phase Converters , 2017, IEEE Transactions on Power Electronics.

[20]  Jinjun Liu,et al.  Single-Phase AC-DC Buck PFC Converter Based on Flying-Capacitor Topology with Active Power Decoupling Control , 2018, 2018 IEEE Energy Conversion Congress and Exposition (ECCE).

[21]  Hui Zhao,et al.  Active Power Decoupling for High-Power Single-Phase PWM Rectifiers , 2013, IEEE Transactions on Power Electronics.

[22]  Zitao Liao,et al.  A 2-kW Single-Phase Seven-Level Flying Capacitor Multilevel Inverter With an Active Energy Buffer , 2017, IEEE Transactions on Power Electronics.