Investigation on Series Active Filter Compensated High Power Grid-Connected Voltage Source Inverters with LCL Filter

Date

2014-09-18

Author

Usluer, S. Nadir
Hava, Ahmet Masum

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

210
views

0
downloads

This paper deals with Series Active Filter (SAF) based damping methods for the LCL filters of three-phase, grid connected, low voltage, high power Voltage Source Inverters (VSIs). The inherent resonance problem of LCL filters is damped via passive or active damping methods. Passive damping methods employing damping resistors create significant power losses reducing the overall system's efficiency for high power inverters. Active damping methods, on the other hand, are not applicable due to inverter's limited controller bandwidth. Unlike passive and active damping approaches, the proposed Series Active Filter (SAF) based systems maintain the stability of the inverter while eliminating the resistive power losses. The steady-state and dynamic performances of the SAF compensated VSIs are investigated and viability of them are demonstrated. Two novel methods, one superior than the other in terms of design simplicity are investigated providing efficiency, line current THD and dynamic response results. The developed methods are proven by theory and computer simulations.

Subject Keywords

Series active filter (SAF), LCL filter, Resonant frequency, Filter damping, PWM-VSI, High power inverter

URI

https://hdl.handle.net/11511/53501

Collections

Department of Electrical and Electronics Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Series Active Filter Based Resonance Damping of High Power Three-phase, LCL Filtered, Grid Connected Voltage Source Inverters Usluer, S. Nadir; Hava, Ahmet Masum (2014-06-04) A series active filter (SAF) based method for the damping of resonant harmonics created by the LCL-filter of the grid connected PWM-VSI is proposed. Oscillations in multi-megawatt rated high power inverters with LCL-filters are damped with resistors which create undesired power losses typically up to 1% of the rated power of the system. The method stated in this paper overcomes the stability/oscillation problem while providing a solution to the resistive power loss. The proposed SAF compensated system perfo...
Design of Microstrip Quadruplet Filters on Filpro Oruc, Sacid; Yıldırım, Nevzat (2018-11-02) In this paper, a simple dimensional design procedure is developed for microstrip/stripline quadruplet filters by starting with direct BP synthesis of a lumped quadruplet with inverter couplings, K14, K12, K23 and K34. K14 is the cross-coupling inverter which creates a symmetric pair of finite transmission zeros (FTZ's) if the sign of K14 is opposite of the other inverters while a complex TZ is created if K14 has the same sign as the other inverters leading to linear phase (flat delay) responses. The LC reso...
Performance enhancement and comparison of discrete time current regulators for parallel active filters Ozkaya, Hasan; Senturk, Osman Selcuk; Hava, Ahmet Masum (2007-09-05) Discrete time linear and hysteresis current regulators (CR) for three-phase parallel active filters (PAF) are reviewed and evaluated. A novel discrete time hysteresis current regulation method with current oversampling and flexible PWM release capability, DHCR3, which has superior overall performance and simple implementation (no additional hardware) is proposed. Switching ripple filters (SRF) suitable for each CR type are designed. A DSP controlled PAF is designed and built for a three-phase 10 kW diode re...
On Miniaturization and Performance Improvement of Planar Wideband Bandpass Filters Without Coupled Lines Alicioglu, Bulent; Yıldırım, Nevzat (2009-10-01) Two classical approaches are compared in various respects for the design of wideband planar BPF's without parallel coupled lines, namely, BPF's designed by pole placement with contributing Unit Elements (UE) and inverter coupled resonator filters designed from LP prototypes. It is shown that the circuit obtained by direct BP synthesis is a special case of inverter coupled filter with inverters converted into single Unit Elements. It is also shown that if the inverters are converted into odd number of UE's t...
Advanced Active Power Filter to Improve Power Quality Gurguiatu, Gelu; Balanuta, Ciprian; Rosu, Emil; Munteanu, Toader; Dumitrescu, Mariana; Raducan, Elena (2011-09-10) This paper presents a three-phase Active Power Filter (APF) to improve grid power quality. Starting from indirect control strategy which was used only for three legs - three wires it is proposed in this paper to be used a bridge with three legs - four wire. The new control strategy it was named extended indirect control strategy. The extension consists in passing from the control of a three wire active power filter to the control of a four wire active power filter. The proposed active power filter can compe...

Citation Formats

S. N. Usluer and A. M. Hava, “Investigation on Series Active Filter Compensated High Power Grid-Connected Voltage Source Inverters with LCL Filter,” 2014, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/53501.