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Design and analysis of a simple predictive power controller for a 1.0‐kV single‐phase NPC PWM rectifier
Author(s) -
Lahooti Eshkevari Alireza,
Mosallanejad Ali,
Sepasian Mohammad Sadegh
Publication year - 2018
Publication title -
international journal of circuit theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.364
H-Index - 52
eISSN - 1097-007X
pISSN - 0098-9886
DOI - 10.1002/cta.2554
Subject(s) - control theory (sociology) , total harmonic distortion , pwm rectifier , rectifier (neural networks) , ripple , ac power , power factor , controller (irrigation) , pulse width modulation , space vector modulation , computer science , precision rectifier , converters , three phase , electronic engineering , voltage , engineering , electrical engineering , machine learning , agronomy , stochastic neural network , control (management) , artificial intelligence , recurrent neural network , artificial neural network , biology
Summary This paper proposes a 1‐kV single‐phase neutral point clamped (NPC) PWM rectifier with a simple predictive power controller (PPC). It includes the three‐level NPC converter and a simplified PPC. This system achieved to feature multi‐level converters and the ability to provide high voltage gain, and a control with accurate and straightforward predictive strategy without the need of PLL and PI controller. It also takes advantages of a digital delay compensator unit, a user‐friendly single‐phase three‐level space vector modulation (SVM) with neutral point balancing, and bidirectional active and reactive power flow. The proposed rectifier provides low input current harmonic distortion (THD < 2%), input sinusoidal current waveforms, zero or desired reactive power flow, fast dynamic response (=5 cycles), high stability, high efficiency, and the lower DC voltage ripple (<6%). Simulations have been carried out for a 1 kV/20 kW rectifier under different conditions. In this analysis, various practical conditions have been investigated and discussed in details. Furthermore, the proposed system was compared with the other literature and conventional methods.