Compensation of Dead-time Effects in Three-level Neutral Point Clamped Inverters based on Space Vector PWM

Date

2011-09-10

Author

Mese, Huseyin
Ersak, Aydın

Metadata

Show full item record

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

Item Usage Stats

203
views

0
downloads

hi this study the effects of dead-time in three-level neutral-point-clamped (NYC) inverter is analyzed and a compensation algorithm based on space vector pulse width modulation (PWJI) is proposed. In three phase inverter applications, different modulation techniques are utilized depending on the application. Among these, space vector pulse width modulation (SVPWM) technique is the modulation technique with which best bus bar utilization is achieved. This modulation technique is also applicable to three-level NPC inverters. The most common space-vector modulation technique for three-level NPC inverters is the Nearest Triangle Vector (NTV) SVPWM technique. This paper focuses on the effects of dead-time in three-level neutral point clamped inverters based on NTV SVPWM. The proposed algorithm is implemented on software and does not require an additional hardware. The analysis and compensation algorithm are verified by computer simulation.

Subject Keywords

Three-level, Neutral-point-clamped, Dead-time, Compensation

URI

https://hdl.handle.net/11511/55450

Conference Name

International Aegean Conference on Electrical Machines and Power Electronics / Electromotion Joint Conference

Collections

Department of Electrical and Electronics Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Compensation of Nonlinear Effects in Three-level Neutral-Point-Clamped Inverters Based on Field Oriented Control Mese, Huseyin; Ersak, Aydın (2012-09-06) In this paper, the nonlinear effects in three-level neutral-point-clamped inverters will be studied and a compensation algorithm, based on field oriented control (FOC) technique, will be proposed. In voltage source inverters (VSIs), nonlinear effects such as voltage drops on power semiconductors, and their turn on/turn off times cause distortions at the output voltage. Also dead-time, inserted in order to avoid short-circuits, are another source of nonlinearity. The proposed compensation algorithm is develo...
Compensation of Temperature and Acceleration effects on MEMS Gyroscope Ali, Muhammad (2016-01-16) This paper shows temperature and acceleration effects on Micro-Electro-Mechanical-Systems (MEMS) gyroscope and a practical solution is presented to mitigate effect of these errors using different methods (Polynomial Curve fitting and Neural Networks). Compensation is performed on the output bias drift data acquired from different MEMS gyroscopes. Performance of compensation techniques is also presented in this study. This paper presents novelty of integrated compensation for both factors (temperature and ac...
Utilization of motor current based torque feedback to improve the transparency of haptic interfaces Baser, Ozgur; Konukseven, Erhan İlhan (2012-06-01) In this paper motor current based torque feedback compensator is utilized in actuator space together with a closed loop impedance control algorithm instead of model based compensator to improve the transparency performance of haptic interfaces; moreover, a novel transparency evaluation metric is developed to evaluate the transparency performance of these devices. The proposed control algorithm is experimentally tested on a 1 DOF haptic device by employing a low-cost current sensor. It is also tested on a MA...
Measurement of the Isolated Prompt Photon Production Cross Section in pp Collisions at root s=7 TeV Khachatryan, V.; et. al. (2011-02-01) The differential cross section for the inclusive production of isolated prompt photons has been measured as a function of the photon transverse energy E-T(Gamma) in pp collisions at root s 7 TeV using data recorded by the CMS detector at the LHC. The data sample corresponds to an integrated luminosity of 2.9 pb(-1). Photons are required to have a pseudorapidity vertical bar eta(gamma)vertical bar 21 GeV, covering the kinematic region 0.006 < x(T) < 0.086. The measured cross section is found to be in agreem...
Estimation of pico-satellite attitude dynamics and external torques via Unscented Kalman Filter Söken, Halil Ersin (FapUNIFESP (SciELO), 2014-01-01) In this study, an Unscented Kalman Filter (UKF) algorithm is designed for estimating the attitude of a picosatellite and the in-orbit external disturbance torques. The estimation vector is formed by the satellite's attitude, angular rates, and the unknown constant components of the external disturbance torques acting on the satellite. The gravity gradient torque, residual magnetic moment, sun radiation pressure and aerodynamic drag are all included in the estimated external disturbance torque vector. The sa...

Citation Formats

H. Mese and A. Ersak, “Compensation of Dead-time Effects in Three-level Neutral Point Clamped Inverters based on Space Vector PWM,” presented at the International Aegean Conference on Electrical Machines and Power Electronics / Electromotion Joint Conference, Istanbul, TURKEY, 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/55450.