A control strategy for a matrix converter based on Venturini method under unbalanced input voltage conditions

2016 ◽  
Author(s):  
Pornpimol Boonseam ◽  
Neerakorn Jarutus ◽  
Yuttana Kumsuwan
Keyword(s):  
Control Strategy ◽  
Input Voltage ◽  
Matrix Converter

Study of Direct Torque Control System of Matrix Converter Multiple Voltage Vectors

2012 ◽  
Vol 588-589 ◽  
pp. 1615-1618
Author(s):  
Zhou Yue
Keyword(s):  
Control System ◽  
Control Strategy ◽  
Direct Torque Control ◽  
Input Voltage ◽  
Torque Ripple ◽  
Matrix Converter ◽  
Torque Control ◽  
Voltage Vector ◽  
Simulation Results ◽  
Zero Voltage

In order to reduce torque ripple. Studied direct torque control of motor that fed by matrix converter. Illustrated control strategy the multiple voltage vector of matrix converter. Full utilize big and small input voltage of matrix converter synthesis long, short and zero voltage vector based on direct torque control of motor that fed by matrix converter, through the rational use of long, short and zero voltage vector to reduce torque ripple. The simulation results demonstrated that the validity of theoretical analysis and modulation strategy presented.

scholarly journals Modified Venturini Modulation Method for Matrix Converter Under Unbalanced Input Voltage Conditions

2019 ◽  
Vol 17 (1) ◽  
pp. 60-68
Author(s):  
Neerakorn Jarutus ◽  
Yuttana Kumsuwan
Keyword(s):  
Control Strategy ◽  
Input Voltage ◽  
Matrix Converter ◽  
Modulation Method ◽  
Energy Storage Devices ◽  
Two Phase ◽  
Storage Devices ◽  
Voltage Unbalance ◽  
Phase Condition ◽  
The Matrix

Based on Venturini method, it is in favor of the modulation technique for controlling the matrix converter due to only use of the comparison between the duty cycles in time domain and the triangular carrier wave for generating the gating signals and the achievable voltage ratio between fundamental output magnitude and fundamental input magnitude to 0.866. However, even with simple modulation method and achieving maximum fundamental output magnitude, the possible input voltage unbalance conditions accordingly influence on the output performances (more reduction and distortion). Thus, a control strategy based on Venturini method is presented in this paper, in order to solve the impacts of unbalanced input voltage conditions on the matrix converter performances. Conceptually, this strategy is done by modifying the mathematical model for controlling the modulating waves to satisfy the desirable feature, as generated in the event of normal situation. Up to this approach, it can support either single-phase condition or two-phase condition. Performance of the proposed control strategy was verified by the simplified simulation model in the MATLAB/Simulink software. It is clearly shown that the matrix converter can be controlled for regulating the balanced output voltages with showing good steady-state and dynamic operations without the energy storage devices.

scholarly journals Input Disturbance Suppression for Unidirectional Matrix Converter with a Stability-Enhancing Modulation Scheme

Energies ◽  
2019 ◽  
Vol 12 (13) ◽  
pp. 2625
Author(s):  
Jiaxing Lei ◽  
Chaofan Wei ◽  
Shuang Feng
Keyword(s):  
Feedback Control ◽  
Control Strategy ◽  
Low Frequency ◽  
Input Voltage ◽  
Matrix Converter ◽  
Modulation Scheme ◽  
Input Filter ◽  
Disturbance Suppression ◽  
The Stability ◽  
Feedback Control Strategy

This paper proposes an input voltage disturbance suppression control strategy for the unidirectional matrix converter (UMC) with a new modulation scheme enhancing the stability. In the new scheme, the modulation index is directly, rather than reversely, proportional to the instantaneous amplitude of input filter capacitor voltages. Contrary to traditional schemes, the stability of the UMC with this new scheme is even better with the increase of the transferred active power, which is particularly suitable for applications with sinusoidal and balanced input conditions. As to the disturbed input conditions, the new scheme could introduce low-frequency harmonics into output currents. To address this issue, a feedback control strategy of output current amplitude is further proposed to eliminate the additional harmonics. Stability analysis of a UMC with the proposed modulation scheme and feedback control strategy is presented. Experimental results have verified the validity of the proposed control solution.

New control strategy for matrix converter

2003 ◽  
Author(s):  
J. Oyama ◽  
T. Higuchi ◽  
E. Yamada ◽  
T. Koga ◽  
T. Lipo
Keyword(s):  
Control Strategy ◽  
Matrix Converter

scholarly journals Control Strategy Proposal for Modular Architecture of Power Supply Utilizing LCCT Converter

Energies ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 3327 ◽  
Author(s):  
Michal Frivaldsky ◽  
Pavol Spanik ◽  
Jan Morgos ◽  
Michal Pridala
Keyword(s):  
Control Strategy ◽  
Power Supply ◽  
Input Voltage ◽  
Modular Architecture ◽  
Efficient Operation ◽  
Power Load ◽  
Extended Range ◽  
Principal Analysis ◽  
The Individual ◽  
Basic Features

Following the invention of resonant power converters, lots of new topologies with significant improvements considering increase of efficiency and power density are arising. The main differences are related to the configuration of the resonant tank structure. In this paper, LCCT topology is proposed, while main aim is focused on the application of the modular architecture of power supply (MAPS) systems. Initially, principal analysis is given which describes basic features and components selection of LCCT resonant converter. After principal analysis, the application is oriented for above mentioned modular architecture of power supply, where more than one LCCT converter operated simultaneously is considered. The main asset within the presented system investigation is the proposal for the control strategy of the modular power supply system. Instead of the requirement on the most efficient operation within the whole operational power range of MAPS, the proposal for control strategy is given, while it is expected that each module of MAPS will be loaded evenly. The control strategy is based on the digital control, whereby sequential switching of the individual power stages is autonomous based on the information’s of the actual power load. Presented solution gives improvements of the parameters where extended range of input voltage, extended range of output power, flat characteristic of efficiency, and lower ripple current and/or voltage will be required.

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