The Experts below are selected from a list of 303 Experts worldwide ranked by ideXlab platform
Hiroshi Takano - One of the best experts on this subject based on the ideXlab platform.
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Simulation of series-parallel resonant DC-DC converter system with DSP based digital control scheme for medical X-ray use
Conference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370), 1999Co-Authors: Saleh Mobin, Hiroshi Takano, Mutsuo NakaokaAbstract:This paper describes a new simulation approach for a DSP controlled series-parallel resonant high frequency DC-DC power conversion system for a medical X-ray tube voltage generator. Software code of the control function in the simulation program is also applicable to software of DSP control based system. This power electronic circuit simulation technique is based on a circuit Equation modelled by substituting switch modulated resistors in place of all the active and passive power switches incorporated in the power converter circuit, one state-Vector Equation described by state-variables for inductors and capacitors, and an algebraic computation method to transform the matrices of the circuit Equation into matrices of the state Vector Equation. Simulation results are illustrated and discussed together with experimental results.
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State-variable based simulation of active PFC converter system with DSP control scheme
Conference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370), 1999Co-Authors: Saleh Mobin, Hiroshi Takano, Mutsuo NakaokaAbstract:This paper describes a new efficient simulation approach of a DSP controlled single-phase voltage-fed AC-DC power conversion circuit and system. The proposed power conversion circuit simulation approach is based on a circuit Equation modeled by substituting time-varying switched resistor circuit in place of all the active and passive power semiconductor switching blocks of the power converter circuit. An algebraic algorithm transforms the matrices of the circuit Equation into matrices of the state Vector Equation. Mathematical computations require a state-Vector Equation described by state-variables, namely, inductors and capacitors. Simulation results are illustrated and discussed together with experimental results.
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Simulation of RISC processor control based power converter circuit and system
IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029), 1999Co-Authors: Saleh Mobin, Hiroshi Takano, Mutsuo NakaokaAbstract:This paper describes a new simulation approach for a RISC processor controlled series-parallel resonant high frequency DC-DC power conversion system. All the control algorithms are implemented in software. Software of control algorithms in the simulation program is also applicable in a RISC processor control based system. This power electronic circuit simulation technique is based on a circuit Equation modelled by substituting switch modulated resistors in place of all the active and passive power switches incorporated in the power converter circuit, one state-Vector Equation described by state-variables for inductors and capacitors, and an algebraic computation method to transform the matrices of the circuit Equation into matrices of the state Vector Equation.
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Practical object-oriented simulation approach for active PFC converter with digital control
PESC 98 Record. 29th Annual IEEE Power Electronics Specialists Conference (Cat. No.98CH36196), 1998Co-Authors: S.m. Ulhaq, Mutsuo Nakaoka, Hiroshi TakanoAbstract:In this paper, an efficient power electronic circuit simulation approach of a single-phase active PFC power converter system is discussed. The control circuit simulation software algorithm used in this simulation technique can also be applied to a digital signal processor (DSP) for the control of a practical power factor conversion circuit. This circuit simulation technique is based on a circuit Equation modeled by substituting control input dependent time-varying resistors in place of active power switches and passive diodes incorporated into the active PFC converter circuit treated here, one state-Vector Equation described by state-variables for inductors and capacitors together with an algebraic computation method to transform the matrices of the circuit Equation into matrices of the state Vector Equation. In addition, this paper proves the effectiveness of a single-phase PFC power converter with digital control strategy and its performance evaluation on the basis of computer-aided simulation.
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Computer-aided simulation of digitally-controlled active single phase PFC converter
1998 Seventh International Conference on Power Electronics and Variable Speed Drives (IEE Conf. Publ. No. 456), 1998Co-Authors: S.m. Ulhaq, Mutsuo Nakaoka, S. Shirakawa, Hiroshi TakanoAbstract:In this paper, an efficient power electronic circuit simulation approach is discussed for a digitally controlled single-phase active PFC converter system. The control circuit simulation control software used in this simulation technique can also be applied to the digital signal processor (DSP) for control implementation of a practical power factor correction power conversion circuit. This circuit simulation technique is based on a circuit Equation modeled by substituting control input dependent time-varying resistors in place of active power switches and passive diodes incorporated into the active PFC converter circuit and the system treated here; one state-Vector Equation described by state-variables for inductors and capacitors together with an algebraic computation method to transform the matrices of the circuit Equation into matrices of the state Vector Equation. In addition, this paper proves the effective performance of a single phase PFC converter with digital control strategy and its performance evaluation on the basis of computer-aided simulation accompanied by experimental results.
Mutsuo Nakaoka - One of the best experts on this subject based on the ideXlab platform.
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Simulation of series-parallel resonant DC-DC converter system with DSP based digital control scheme for medical X-ray use
Conference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370), 1999Co-Authors: Saleh Mobin, Hiroshi Takano, Mutsuo NakaokaAbstract:This paper describes a new simulation approach for a DSP controlled series-parallel resonant high frequency DC-DC power conversion system for a medical X-ray tube voltage generator. Software code of the control function in the simulation program is also applicable to software of DSP control based system. This power electronic circuit simulation technique is based on a circuit Equation modelled by substituting switch modulated resistors in place of all the active and passive power switches incorporated in the power converter circuit, one state-Vector Equation described by state-variables for inductors and capacitors, and an algebraic computation method to transform the matrices of the circuit Equation into matrices of the state Vector Equation. Simulation results are illustrated and discussed together with experimental results.
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State-variable based simulation of active PFC converter system with DSP control scheme
Conference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370), 1999Co-Authors: Saleh Mobin, Hiroshi Takano, Mutsuo NakaokaAbstract:This paper describes a new efficient simulation approach of a DSP controlled single-phase voltage-fed AC-DC power conversion circuit and system. The proposed power conversion circuit simulation approach is based on a circuit Equation modeled by substituting time-varying switched resistor circuit in place of all the active and passive power semiconductor switching blocks of the power converter circuit. An algebraic algorithm transforms the matrices of the circuit Equation into matrices of the state Vector Equation. Mathematical computations require a state-Vector Equation described by state-variables, namely, inductors and capacitors. Simulation results are illustrated and discussed together with experimental results.
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Simulation of RISC processor control based power converter circuit and system
IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029), 1999Co-Authors: Saleh Mobin, Hiroshi Takano, Mutsuo NakaokaAbstract:This paper describes a new simulation approach for a RISC processor controlled series-parallel resonant high frequency DC-DC power conversion system. All the control algorithms are implemented in software. Software of control algorithms in the simulation program is also applicable in a RISC processor control based system. This power electronic circuit simulation technique is based on a circuit Equation modelled by substituting switch modulated resistors in place of all the active and passive power switches incorporated in the power converter circuit, one state-Vector Equation described by state-variables for inductors and capacitors, and an algebraic computation method to transform the matrices of the circuit Equation into matrices of the state Vector Equation.
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Practical object-oriented simulation approach for active PFC converter with digital control
PESC 98 Record. 29th Annual IEEE Power Electronics Specialists Conference (Cat. No.98CH36196), 1998Co-Authors: S.m. Ulhaq, Mutsuo Nakaoka, Hiroshi TakanoAbstract:In this paper, an efficient power electronic circuit simulation approach of a single-phase active PFC power converter system is discussed. The control circuit simulation software algorithm used in this simulation technique can also be applied to a digital signal processor (DSP) for the control of a practical power factor conversion circuit. This circuit simulation technique is based on a circuit Equation modeled by substituting control input dependent time-varying resistors in place of active power switches and passive diodes incorporated into the active PFC converter circuit treated here, one state-Vector Equation described by state-variables for inductors and capacitors together with an algebraic computation method to transform the matrices of the circuit Equation into matrices of the state Vector Equation. In addition, this paper proves the effectiveness of a single-phase PFC power converter with digital control strategy and its performance evaluation on the basis of computer-aided simulation.
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Computer-aided simulation of digitally-controlled active single phase PFC converter
1998 Seventh International Conference on Power Electronics and Variable Speed Drives (IEE Conf. Publ. No. 456), 1998Co-Authors: S.m. Ulhaq, Mutsuo Nakaoka, S. Shirakawa, Hiroshi TakanoAbstract:In this paper, an efficient power electronic circuit simulation approach is discussed for a digitally controlled single-phase active PFC converter system. The control circuit simulation control software used in this simulation technique can also be applied to the digital signal processor (DSP) for control implementation of a practical power factor correction power conversion circuit. This circuit simulation technique is based on a circuit Equation modeled by substituting control input dependent time-varying resistors in place of active power switches and passive diodes incorporated into the active PFC converter circuit and the system treated here; one state-Vector Equation described by state-variables for inductors and capacitors together with an algebraic computation method to transform the matrices of the circuit Equation into matrices of the state Vector Equation. In addition, this paper proves the effective performance of a single phase PFC converter with digital control strategy and its performance evaluation on the basis of computer-aided simulation accompanied by experimental results.
Bin Zhou - One of the best experts on this subject based on the ideXlab platform.
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Spectral decomposition based solutions to the matrix Equation $AX-XB=C$AX−XB=C
IET Control Theory & Applications, 2018Co-Authors: Zhao-yan Li, Bin ZhouAbstract:This study studies the matrix Equation AX - XB = C, which has many important applications in control theory, by using spectral decompositions of A and B. By establishing solvability conditions and solutions to the standard Vector Equation Ax = c, and the spectral decompositions of the associated nivellateur of the matrix Equation, necessary and sufficient conditions for the solvability of the matrix Equation are provided in terms of the coefficients of the spectral decompositions of A and B. Moreover, explicit solutions are provided, which are also based on the coefficients of the spectral decompositions of A and B. The obtained results include the existing ones as special cases, and, moreover, correct some errors in the existing methods. The effectiveness of the proposed approach is demonstrated by some illustrative examples.
S.m. Ulhaq - One of the best experts on this subject based on the ideXlab platform.
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Practical object-oriented simulation approach for active PFC converter with digital control
PESC 98 Record. 29th Annual IEEE Power Electronics Specialists Conference (Cat. No.98CH36196), 1998Co-Authors: S.m. Ulhaq, Mutsuo Nakaoka, Hiroshi TakanoAbstract:In this paper, an efficient power electronic circuit simulation approach of a single-phase active PFC power converter system is discussed. The control circuit simulation software algorithm used in this simulation technique can also be applied to a digital signal processor (DSP) for the control of a practical power factor conversion circuit. This circuit simulation technique is based on a circuit Equation modeled by substituting control input dependent time-varying resistors in place of active power switches and passive diodes incorporated into the active PFC converter circuit treated here, one state-Vector Equation described by state-variables for inductors and capacitors together with an algebraic computation method to transform the matrices of the circuit Equation into matrices of the state Vector Equation. In addition, this paper proves the effectiveness of a single-phase PFC power converter with digital control strategy and its performance evaluation on the basis of computer-aided simulation.
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Computer-aided simulation of digitally-controlled active single phase PFC converter
1998 Seventh International Conference on Power Electronics and Variable Speed Drives (IEE Conf. Publ. No. 456), 1998Co-Authors: S.m. Ulhaq, Mutsuo Nakaoka, S. Shirakawa, Hiroshi TakanoAbstract:In this paper, an efficient power electronic circuit simulation approach is discussed for a digitally controlled single-phase active PFC converter system. The control circuit simulation control software used in this simulation technique can also be applied to the digital signal processor (DSP) for control implementation of a practical power factor correction power conversion circuit. This circuit simulation technique is based on a circuit Equation modeled by substituting control input dependent time-varying resistors in place of active power switches and passive diodes incorporated into the active PFC converter circuit and the system treated here; one state-Vector Equation described by state-variables for inductors and capacitors together with an algebraic computation method to transform the matrices of the circuit Equation into matrices of the state Vector Equation. In addition, this paper proves the effective performance of a single phase PFC converter with digital control strategy and its performance evaluation on the basis of computer-aided simulation accompanied by experimental results.
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Object-oriented simulation of DSP controlled three phase active PFC converter
1998 Seventh International Conference on Power Electronics and Variable Speed Drives (IEE Conf. Publ. No. 456), 1998Co-Authors: S.m. Ulhaq, Mutsuo Nakaoka, E. Hiraki, Hiroshi TakanoAbstract:In this paper, an efficient power electronic circuit simulation approach is discussed for a digitally controlled three phase active PFC converter system. The control circuit simulation software used in this simulation technique is also applied to the digital signal processor (DSP) based control implementation of a practical power factor correction (PFC) power conversion circuit with a digital control scheme. This circuit simulation technique is based on a circuit Equation modeled by substituting control input dependent time-varying resistors in place of all the power switches incorporated in the bridge arms of the three phase active PFC converter circuit and system treated here, one state-Vector Equation described by state-variables for inductors and capacitors, together with an algebraic computation method to transform the matrix of the circuit Equation into matrix of the state Vector Equation. In addition, this paper proves the effectiveness of a voltage-fed three phase PFC converter with a digital control PWM strategy and its performance evaluations on the basis of computer-aided simulation results together with experimental results.
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State Vector Equation based computer simulation approach of digitally controlled power conversion circuits and systems
Proceedings of Power Conversion Conference - PCC '97, 1997Co-Authors: S.m. Ulhaq, Mutsuo Nakaoka, Hiroshi TakanoAbstract:An efficient simulation approach is presented in order to analyze digitally-controlled switching mode power converter circuits and systems with feedback and feedforward control loops. The general computer-aided simulation procedure is based on a circuit and system Equation modeled by time-varying resistors which substitute active power switches and the passive diodes of the converter circuits in addition to a state Equation for the inductors and the capacitors, an algebraic computation method to transform the matrices of the circuit Equation into the matrices of the state Equation. In this approach, the numerical integration is achieved with rather less numerical calculation steps because of the small matrice size of the state Equation. The effectiveness of this approach are proved by introducing a newly-developed PWM DC-DC high-power converter operating at high-voltage transformer parasitic circuit parameters under a digital control scheme.
Emmanuel G. Collins - One of the best experts on this subject based on the ideXlab platform.
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A Solution Methodology for Modified Lyapunov Equations
1991 American Control Conference, 1991Co-Authors: Stephen Richter, Larry D. Davis, Emmanuel G. CollinsAbstract:This paper develops a solution methodology for modified Lyapunov Equations in which the modification term T(Q) is a linear function of the solution Q. Equations of this form arise in robustness analysis and in homotopy algorithms developed for solving the nonstandard Riccati and Lyapunov Equations arising in robust reduced-order design. The methodology relies on decomposing T(Q) as T(Q) = g(ø(Q)) where ø(Q) is an m-dimensional Vector. If m is small, then it is shown that the new solution procedure will be much more efficient than solutions based on a straightforward transformation of the modified Lyapunov Equation to a linear Vector Equation in n(n+1)/2 unknowns.
