Synthesis of Variable Harmonic Impedance in Inverter-Interfaced Distributed Generation Unit for Harmonic Damping Throughout a Distribution Network

This paper proposes a harmonic impedance synthesis technique for voltage-controlled distributed generation inverters in order to damp harmonic voltage distortion on a distribution network. The approach employs a multiloop control scheme, where a selective harmonic load current feedforward loop based on the bandpass filter is developed, in addition to the inner inductor current and the outer capacitor voltage control loops. Together with the use of multiple resonant integrators in the voltage control loop, the negative harmonic inductances and positive harmonic resistances are synthesized at the dominant harmonic frequencies. Thus, the harmonic voltage drop on the grid-side inductance and the harmonic resonances throughout a distribution feeder with multiple shunt-connected capacitors can be effectively attenuated. Simulation and laboratory test results validate the performance of the proposed control method.

[1]  P.J.M. Heskes,et al.  Harmonic interaction between a large number of distributed power inverters and the distribution network , 2004, IEEE Transactions on Power Electronics.

[2]  Josep M. Guerrero,et al.  A Review of Power Electronics Based Microgrids , 2012 .

[3]  Yun Wei Li,et al.  A Flexible Harmonic Control Approach Through Voltage-Controlled DG–Grid Interfacing Converters , 2012, IEEE Transactions on Industrial Electronics.

[4]  Tzung-Lin Lee,et al.  Design of a New Cooperative Harmonic Filtering Strategy for Distributed Generation Interface Converters in an Islanding Network , 2007, IEEE Transactions on Power Electronics.

[5]  F. Blaabjerg,et al.  Power electronics as efficient interface in dispersed power generation systems , 2004, IEEE Transactions on Power Electronics.

[6]  Yun Wei Li,et al.  Control and Resonance Damping of Voltage-Source and Current-Source Converters With $LC$ Filters , 2009, IEEE Transactions on Industrial Electronics.

[7]  Josep M. Guerrero,et al.  A centralized control architecture for harmonic voltage suppression in islanded microgrids , 2011, IECON 2011 - 37th Annual Conference of the IEEE Industrial Electronics Society.

[8]  Yun Wei Li,et al.  Analysis, Design, and Implementation of Virtual Impedance for Power Electronics Interfaced Distributed Generation , 2011, IEEE Transactions on Industry Applications.

[9]  Atsuo Kawamura,et al.  Realization of negative inductance using variable active-passive reactance (VAPAR) , 1997 .

[10]  Donald Grahame Holmes,et al.  Stationary frame current regulation of PWM inverters with zero steady state error , 1999, 30th Annual IEEE Power Electronics Specialists Conference. Record. (Cat. No.99CH36321).

[11]  Robert Lasseter,et al.  Smart Distribution: Coupled Microgrids , 2011, Proceedings of the IEEE.

[12]  A. G. Yepes,et al.  High-Performance Digital Resonant Controllers Implemented With Two Integrators , 2011, IEEE Transactions on Power Electronics.

[13]  J L Agorreta,et al.  Modeling and Control of $N$ -Paralleled Grid-Connected Inverters With LCL Filter Coupled Due to Grid Impedance in PV Plants , 2011, IEEE Transactions on Power Electronics.

[14]  Fei Wang,et al.  Modeling and Analysis of Grid Harmonic Distortion Impact of Aggregated DG Inverters , 2011, IEEE Transactions on Power Electronics.

[15]  Josep M. Guerrero,et al.  Secondary voltage control for harmonics suppression in islanded microgrids , 2011, 2011 IEEE Power and Energy Society General Meeting.

[16]  Nobuyuki Matsui,et al.  Current waveform control of PWM converter system for harmonic suppression on distribution system , 2003, IEEE Trans. Ind. Electron..

[17]  Frede Blaabjerg,et al.  Sharing of nonlinear load in parallel connected three-phase converters , 2000 .

[18]  V. Blasko,et al.  A new mathematical model and control of a three-phase AC-DC voltage source converter , 1997 .

[19]  G.K. Venayagamoorthy,et al.  Multiple Reference Frame-Based Control of Three-Phase PWM Boost Rectifiers under Unbalanced and Distorted Input Conditions , 2008, IEEE Transactions on Power Electronics.

[20]  H. Akagi,et al.  A shunt active filter based on voltage detection for harmonic termination of a radial power distribution line , 1998, Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242).

[21]  Hirofumi Akagi.  Control Strategy and Site Selection of a Shunt Active Filter for Damping of Harmonic Propagation in Power Distribution Systems , 1997 .

[22]  K. Wada,et al.  Considerations of a shunt active filter based on voltage detection for installation on a long distribution feeder , 2001, Conference Record of the 2001 IEEE Industry Applications Conference. 36th IAS Annual Meeting (Cat. No.01CH37248).