2005 IEEE International Conference on Industrial Technology
... Artificial intelligence (AI) techniques, such as fuzzy logic, neural networks and genetic alg... more ... Artificial intelligence (AI) techniques, such as fuzzy logic, neural networks and genetic algorithms are now extending its frontier and bringing ... In the environmentally clean renewable energy systems, such as wind, PV and fuel cells, the role of power electronics is significant. ...
Proceedings of the IEEE International Symposium on Industrial Electronics ISIE-02, 2002
... of the technology has been further advanced by the artificial intelligence (AI) techniques ..... more ... of the technology has been further advanced by the artificial intelligence (AI) techniques ... recent years, AI techniques, particularly fuzzy logic (FL) and artificial neural networks ... drives, flux programming efficiency optimization control, wind generation and photovoltaic systems, slip ...
Power Electronics in Renewable Energy Systems and Smart Grid, 2019
This chapter provides an overview of energy, environment, power electronics, renewable energy sys... more This chapter provides an overview of energy, environment, power electronics, renewable energy systems, and the smart grid. Energy is the life‐blood of human civilization and the wheel of its progress moves continuously with energy. A substantial portion of global energy demand can be met by promoting environmentally clean renewable energy sources, and the whole world is now moving in that direction. Power semiconductors have been the main driving force for power electronics technologies. Grid‐related power electronics can be classified as related to source, loads, and transmission and distribution. Renewable energy systems, mainly wind and photovoltaic solar systems, require power electronics interfaces. Smart grids require more controllability and better power quality, two areas with which power electronics can help. Power electronics‐based grid controllers include more conventional flexible alternating current transmission systems and high‐voltage direct current for transmission, and custom power for distribution.
Proceedings of the Institution of Electrical Engineers, 1964
Halfwave bridge-type magnetic servoamplifiers, which have been widely used for instrumentation an... more Halfwave bridge-type magnetic servoamplifiers, which have been widely used for instrumentation and control problems, have been improved by adding biased rectifiers in the control circuit. It has been shown that such amplifiers give higher gain than the conventional type of halfwave amplifier and maintain the large input impedance required by the synchrocontrol transformer output. The paper gives a systematic mathematical analysis of d.c. and fundamental-frequency gain of halfwave magnetic servoamplifiers with biased-rectifier control, considering resistive and capacitive loads. Graphical illustrations have been added to mathematical analysis wherever necessary. The result of the analysis shows good correspondence with experimental values.
IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)
A new control method for precision robust position control of a brushless DC (BLDC) motor using a... more A new control method for precision robust position control of a brushless DC (BLDC) motor using asymptotically stable adaptive load torque observer is presented in the paper. Precision position control is obtained for the BLDC motor system approximately linearized using the field-orientation method. Many of these drive systems use BLDC motors to avoid backlash. However, the disadvantages of the motor are high cost and complex control because of nonlinear characteristics. Also, the load torque disturbance directly affects the motor shaft. However, the motor flux linkage is not exactly known for a load torque observer. There is the problem of uncertainty to obtain very high precision position control. Therefore, a model reference adaptive observer is considered to overcome the problem of unknown parameter and torque disturbance in this paper. The system stability analysis is carried out using Lyapunov stability theorem. As a result, asymptotically stable observer gain can be obtained without affecting the overall system response. The load disturbance detected by the asymptotically stable adaptive observer is compensated by feedforwarding the equivalent current which gives fast response. The experimental results are presented in the paper.
2005 IEEE International Conference on Industrial Technology
... Artificial intelligence (AI) techniques, such as fuzzy logic, neural networks and genetic alg... more ... Artificial intelligence (AI) techniques, such as fuzzy logic, neural networks and genetic algorithms are now extending its frontier and bringing ... In the environmentally clean renewable energy systems, such as wind, PV and fuel cells, the role of power electronics is significant. ...
Proceedings of the IEEE International Symposium on Industrial Electronics ISIE-02, 2002
... of the technology has been further advanced by the artificial intelligence (AI) techniques ..... more ... of the technology has been further advanced by the artificial intelligence (AI) techniques ... recent years, AI techniques, particularly fuzzy logic (FL) and artificial neural networks ... drives, flux programming efficiency optimization control, wind generation and photovoltaic systems, slip ...
Power Electronics in Renewable Energy Systems and Smart Grid, 2019
This chapter provides an overview of energy, environment, power electronics, renewable energy sys... more This chapter provides an overview of energy, environment, power electronics, renewable energy systems, and the smart grid. Energy is the life‐blood of human civilization and the wheel of its progress moves continuously with energy. A substantial portion of global energy demand can be met by promoting environmentally clean renewable energy sources, and the whole world is now moving in that direction. Power semiconductors have been the main driving force for power electronics technologies. Grid‐related power electronics can be classified as related to source, loads, and transmission and distribution. Renewable energy systems, mainly wind and photovoltaic solar systems, require power electronics interfaces. Smart grids require more controllability and better power quality, two areas with which power electronics can help. Power electronics‐based grid controllers include more conventional flexible alternating current transmission systems and high‐voltage direct current for transmission, and custom power for distribution.
Proceedings of the Institution of Electrical Engineers, 1964
Halfwave bridge-type magnetic servoamplifiers, which have been widely used for instrumentation an... more Halfwave bridge-type magnetic servoamplifiers, which have been widely used for instrumentation and control problems, have been improved by adding biased rectifiers in the control circuit. It has been shown that such amplifiers give higher gain than the conventional type of halfwave amplifier and maintain the large input impedance required by the synchrocontrol transformer output. The paper gives a systematic mathematical analysis of d.c. and fundamental-frequency gain of halfwave magnetic servoamplifiers with biased-rectifier control, considering resistive and capacitive loads. Graphical illustrations have been added to mathematical analysis wherever necessary. The result of the analysis shows good correspondence with experimental values.
IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)
A new control method for precision robust position control of a brushless DC (BLDC) motor using a... more A new control method for precision robust position control of a brushless DC (BLDC) motor using asymptotically stable adaptive load torque observer is presented in the paper. Precision position control is obtained for the BLDC motor system approximately linearized using the field-orientation method. Many of these drive systems use BLDC motors to avoid backlash. However, the disadvantages of the motor are high cost and complex control because of nonlinear characteristics. Also, the load torque disturbance directly affects the motor shaft. However, the motor flux linkage is not exactly known for a load torque observer. There is the problem of uncertainty to obtain very high precision position control. Therefore, a model reference adaptive observer is considered to overcome the problem of unknown parameter and torque disturbance in this paper. The system stability analysis is carried out using Lyapunov stability theorem. As a result, asymptotically stable observer gain can be obtained without affecting the overall system response. The load disturbance detected by the asymptotically stable adaptive observer is compensated by feedforwarding the equivalent current which gives fast response. The experimental results are presented in the paper.
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