Patent Review :
Pulse width modulation control unit of inverter.
Application No:89303871.1
Patent No:033878B1
Date of patent:18.04.89
Inventor: Ohyama,kazunobu c/o shiga plant diakin insdustries limited
Summary:
Main objective this patent was to relate PWM control unit of an inverter with precise Carrier frequency. The control unit is capable of effective precise waveform control and therefore reduction in electromagnetic noise and improvement in motor efficiency.
The control unit on PWM by high speed carrier is possible by use of high speed arithmetic operator,such as an exclusive software composed by digital circuit,DSP. There are some disadvantage of use of exclusive software ,that can be overcome by use of one-chip microcomputer which cheap and simple in composition of circuit.
Link: http://www.freepatentsonline.com/EP0338798A2.html
IEEE Paper Review :
Pulse Width Modulation of Three-Phase Switched Boost Inverter.
Author: Ravindranath Adda, Avinash Joshi, and Santanu Mishra
Publisher:IEEE
Published in: 2013
Date of Conference:2013 IEEE Energy Conversion Congress And Exposition
Summary:
The paper was about the steady state analysis of a three-phase switched boost inverter (SBI). A Pulse Width Modulation (PWM) control strategy suitable for the gate control signal generation of the three-phase SBI is also described in this paper. The proposed PWM control technique has been implemented in digital domain using Texas Instruments TMS320F28335 digital signal processor (DSP). The steady state analysis and the PWM control technique are verified using an experimental prototype of three-phase SBI supplying a balanced three-phase load. The gate control signals for the experimental prototype of SBI are generated using the DSP. A comparison of the SBI with traditional three-phase voltage source inverter (VSI) for the same input and control parameters is also given in this paper. The experimental results presented in the paper show good correlation with the theoretical analysis.
Link:http://ieeexplore.ieee.org/document/6646780/?denied
Pulse width modulation control unit of inverter.
Application No:89303871.1
Patent No:033878B1
Date of patent:18.04.89
Inventor: Ohyama,kazunobu c/o shiga plant diakin insdustries limited
Summary:
Main objective this patent was to relate PWM control unit of an inverter with precise Carrier frequency. The control unit is capable of effective precise waveform control and therefore reduction in electromagnetic noise and improvement in motor efficiency.
The control unit on PWM by high speed carrier is possible by use of high speed arithmetic operator,such as an exclusive software composed by digital circuit,DSP. There are some disadvantage of use of exclusive software ,that can be overcome by use of one-chip microcomputer which cheap and simple in composition of circuit.
Link: http://www.freepatentsonline.com/EP0338798A2.html
IEEE Paper Review :
Pulse Width Modulation of Three-Phase Switched Boost Inverter.
Author: Ravindranath Adda, Avinash Joshi, and Santanu Mishra
Publisher:IEEE
Published in: 2013
Date of Conference:2013 IEEE Energy Conversion Congress And Exposition
Summary:
The paper was about the steady state analysis of a three-phase switched boost inverter (SBI). A Pulse Width Modulation (PWM) control strategy suitable for the gate control signal generation of the three-phase SBI is also described in this paper. The proposed PWM control technique has been implemented in digital domain using Texas Instruments TMS320F28335 digital signal processor (DSP). The steady state analysis and the PWM control technique are verified using an experimental prototype of three-phase SBI supplying a balanced three-phase load. The gate control signals for the experimental prototype of SBI are generated using the DSP. A comparison of the SBI with traditional three-phase voltage source inverter (VSI) for the same input and control parameters is also given in this paper. The experimental results presented in the paper show good correlation with the theoretical analysis.
Link:http://ieeexplore.ieee.org/document/6646780/?denied
Informative and interesting to implement!!!
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