Aug 2026· Journal of Physics, Conference Series· Vol 3300, pp. 012011· 0 citations· 3 references
Physics
Abstract
To meet the high-precision timing control requirements for voltage source insertion in synthetic tests, this paper investigates zero-crossing prediction of asymmetric power-frequency short-circuit currents. Two prediction algorithms—the variable forgetting factor recursive least squares (VFF-RLS) method and the improved fast Fourier transform (FFT) method—are derived and compared. Simulation analyses are conducted under noise interference and harmonic distortion conditions. A hardware platform based on the TMS320F28335 DSP is developed for experimental verification. The results demonstrate that the trigger pulse can be stably output within 500–800 μs prior to the current zero-crossing, satisfying the precision requirements for voltage source insertion in synthetic tests.
To solve high harmonic distortion of traditional AC voltage regulators, this paper establishes a simulation model of cascade quasi-Z-source AC regulator in MATLAB/Simulink. Steady-state waveforms under various duty cycles, dynamic responses to sudden duty cycle and load changes, as well as FFT and THD with or without f...
Fei Xu, Xiao-Juan Song, Jin-Lan Zhang et al.· 2026 6th International Confe...· 0 citations
The proliferation of non-linear loads in modern electrical systems has intensified the degradation of Power Quality (PQ), leading to technical and economic impacts ranging from equipment overheating to significant financial losses. Given the need for continuous monitoring in compliance with current regulations, such as...
Antônio Lima, T. Weber· 2026 10th International Symp...· 0 citations
This paper addresses the analysis, mathematical modelling and parameter justification of an active power harmonic filter designed to optimise the operation of industrial electromechanical systems equipped with high-power semiconductor converters. The relevance of the study stems from the growing proportion of non-linea...
In recent years, the rapid expansion of More Electric Aircraft systems and high-voltage direct current (HVDC) transmission networks has intensified the demand for power converters that can ensure high power quality with minimal harmonic distortion. Among the well-established solutions, multipulse rectifiers have remain...
Sakineh Aghighi· Management Strategies and En...· 0 citations
This paper presents an integrated modulation, control, neutral-point balancing, and open-circuit fault-diagnosis framework for a three-level neutral-point-clamped (3L-NPC) rectifier in a wind-energy conversion system. A simplified third-harmonic-injection space-vector pulse-width modulation (SVPWM) scheme is combined w...
Zhan-Shuo Zhang· 2026 2nd International Confe...· 0 citations
We use cookies to run the site and, with your consent, for analytics and to show ads.
See our Cookie Policy.
