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<strong>Digitally controlled sigma-delta modulated direct matrix converter for high frequency AC-AC Conversion</strong>

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Title Statement <strong>Digitally controlled sigma-delta modulated direct matrix converter for high frequency AC-AC Conversion</strong>
 
Added Entry - Uncontrolled Name Khan, Irfan Ahmad; Electrical and Electronics Engineering, National Institute of Technology, Delhi-110 040, India
Agarwal, Anshul ; Electrical and Electronics Engineering, National Institute of Technology, Delhi-110 040, India
 
Uncontrolled Index Term Direct matrix converter, Field programmable gate arrays, Modulation techniques, Pulse width modulation, Sigma-delta modulation, Total harmonic distortion
 
Summary, etc. <p>In recent times, several digitally controlled modulation techniques (MTs) have envisioned for generating pulse width modulation (PWM) trigger pulses to improve the quality of the output (o/p) produced [in terms of reduced total harmonic distortion (THD)], from direct matrix converter (DMC). The development of a digital controller for single-phase DMC, producing o/p frequencies higher than the input frequency has been dealt with in this paper. Performance of the proposed DMC has been analysed by applying an advanced modulation technique, named as “Sigma-Delta modulation”. The complete system has been simulated on the MATLAB/SIMULINK platform as well as successfully implemented on the real-time digital simulator “OPAL-RT: OP4510”. Working of the proposed digital controller has been successfully verified for the DMC with o/p frequency, ranging from 100 Hz to 60 kHz. With the Sigma-Delta modulated trigger pulses, the lowest THD (associated with o/p voltage of the DMC) is found to be around 3.1 %. As the real-time results have been acquired in the close vicinity and conformity to the results achieved with simulations, this validates success of the proposed digital controller.</p>
 
Publication, Distribution, Etc. Indian Journal of Engineering and Materials Sciences (IJEMS)
2021-01-15 10:26:31
 
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http://op.niscair.res.in/index.php/IJEMS/article/view/44877
 
Data Source Entry Indian Journal of Engineering and Materials Sciences (IJEMS); ##issue.vol## 27, ##issue.no## 4 (2020): IJEMS- AUGUST 2020
 
Language Note en
 
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