Space-vector hysteresis modulation for neutral-diode-clamped inverter in active power filter applications
MetadataShow full item record
A space-vector hysteresis modulation (SVHM) technique is presented in this paper for three-level neutral-point-clamped (TLNPC) multilevel inverter for active power filter (APF) applications. The main responsibility of this modulation technique is to force the actual current to reach the reference current and, simultaneously, balance the capacitor voltages. This scheme is implemented in the stationary reference frame (SRF) to avoid interphase dependency in three-phase floated neutral point (TP-FNP) systems. The spacevector-based method permits for the efficient application of zerovoltage vectors and avoids high switching frequencies triggered by phase interaction in TPFNP systems. The approach comprises of performing two alternative hysteresis strategies around the error vector in SRF. Then, based on the present location of it, the next voltage vector is selected to minimize the next error vector and also balance the capacitor voltages. The performance of the proposed technique is investigated and verified through detailed simulation studies for both steady-state and transient conditions.
Showing items related by title, author, creator and subject.
Foundation pit displacement monitoring and prediction using least squares support vector machines based on multi-point measurementLi, X.; Liu, Xin; Li, C.; Hu, Z.; Shen, G.; Huang, Z. (2018)© 2018, The Author(s) 2018. Foundation pit displacement is a critical safety risk for both building structure and people lives. The accurate displacement monitoring and prediction of a deep foundation pit are essential ...
Dynamic Analysis of Nonclassically Damped Systems with Linear Behavior Using Load-Dependent Ritz VectorsChen, H.; Hao, H.; Bi, Kaiming; Tan, P.; Peng, L.; Zhou, F. (2018)© 2019 World Scientific Publishing Company. In the present paper, a practical superposition method is proposed for complex load-dependent Ritz (CLDR) vectors for use in the dynamic analysis of nonclassically damped systems. ...
Reliability of the slowness and slowness-polarization methods for anisotropy estimation in VTI media from 3C walkaway VSP dataAsgharzadeh, Mehdi; Bona, Andrej; Pevzner, Roman; Urosevic, Milovan; Gurevich, Boris (2013)We studied the validity of qP-wave slowness and slowness-polarization methods for estimating local anisotropy parameters in transversely isotropic (TI) media by quantifying the estimation errors in a numerical exercise. ...