The Experts below are selected from a list of 318 Experts worldwide ranked by ideXlab platform
Abbas Shoulaie - One of the best experts on this subject based on the ideXlab platform.
-
Steady-State Simulation of LCI-Fed Synchronous Motor Drives Through a Computationally Efficient Algebraic Method
IEEE Transactions on Power Electronics, 2017Co-Authors: Sobhan Mohamadian, Alberto Tessarolo, Simone Castellan, Abbas ShoulaieAbstract:Wound-field synchronous motors (WFSMs) fed by load-commutated inverters (LCIs) are widely used for high-power applications in many fields like ship propulsion, oil and gas industry, and pumped-storage hydropower generation. Several design architectures exist for LCI drives, depending on the number of LCIs and their dc-link connection as well as on the number of WFSM phase count. The prediction of LCI drive performance at steady state is important in the design stage, especially in regard to the prediction of the torque pulsations, which can give rise to serious mechanical resonance issues. This paper proposes an Algebraic Method to simulate the steady-state behavior of LCI drives in all their configurations of practical interest. Compared to conventional dynamic simulation approaches based on differential equation solution, the Method is much more computationally efficient and requires a very limited knowledge of system parameters. Its accuracy is experimentally assessed by comparison against measurements taken on a real LCI drive arranged according to various possible schemes. Furthermore, the advantages of the proposed Algebraic Method over the dynamic simulations are highlighted by comparison against the simulation results on a high-power LCI-fed WFSM drive in MATLAB/Simulink environment.
C.-t. Chen - One of the best experts on this subject based on the ideXlab platform.
-
Applications of the linear Algebraic Method for control system design
IEEE Control Systems Magazine, 1990Co-Authors: C.-t. ChenAbstract:It is shown how to apply the linear Algebraic Method to the design of control systems with specific characteristics. The Method is applied to pole-zero assignment with disturbance rejection and to tracking of a reference input. The problem of choosing overall transfer functions is discussed. In general, the examples show that the Method is systematic and general and yields good results.
W. Khefifi - One of the best experts on this subject based on the ideXlab platform.
-
A Lie Algebraic Method of motion planning for driftless nonholonomic systems
Proceedings of the Fifth International Workshop on Robot Motion and Control 2005. RoMoCo '05., 2005Co-Authors: Ignacy Duleba, W. KhefifiAbstract:In this paper a Lie Algebraic Method is proposed to steer driftless nonholonomic systems. It uses the special instance of the generalized Campbell-Baker-Hausdorff-Dynkin formula for driftless nonholonomic systems to establish a mapping between controls and a resulting direction of motion. Then, locally, a motion planning task is to find the inverse of this mapping. Usually, it can be supported by analytic computations.
-
RoMoCo - A Lie Algebraic Method of motion planning for driftless nonholonomic systems
Proceedings of the Fifth International Workshop on Robot Motion and Control 2005. RoMoCo '05., 2005Co-Authors: Ignacy Duleba, W. KhefifiAbstract:In this paper a Lie Algebraic Method is proposed to steer driftless nonholonomic systems. It uses the special instance of the generalized Campbell-Baker-Hausdorff-Dynkin formula for driftless nonholonomic systems to establish a mapping between controls and a resulting direction of motion. Then, locally, a motion planning task is to find the inverse of this mapping. Usually, it can be supported by analytic computations.
Sobhan Mohamadian - One of the best experts on this subject based on the ideXlab platform.
-
Steady-State Simulation of LCI-Fed Synchronous Motor Drives Through a Computationally Efficient Algebraic Method
IEEE Transactions on Power Electronics, 2017Co-Authors: Sobhan Mohamadian, Alberto Tessarolo, Simone Castellan, Abbas ShoulaieAbstract:Wound-field synchronous motors (WFSMs) fed by load-commutated inverters (LCIs) are widely used for high-power applications in many fields like ship propulsion, oil and gas industry, and pumped-storage hydropower generation. Several design architectures exist for LCI drives, depending on the number of LCIs and their dc-link connection as well as on the number of WFSM phase count. The prediction of LCI drive performance at steady state is important in the design stage, especially in regard to the prediction of the torque pulsations, which can give rise to serious mechanical resonance issues. This paper proposes an Algebraic Method to simulate the steady-state behavior of LCI drives in all their configurations of practical interest. Compared to conventional dynamic simulation approaches based on differential equation solution, the Method is much more computationally efficient and requires a very limited knowledge of system parameters. Its accuracy is experimentally assessed by comparison against measurements taken on a real LCI drive arranged according to various possible schemes. Furthermore, the advantages of the proposed Algebraic Method over the dynamic simulations are highlighted by comparison against the simulation results on a high-power LCI-fed WFSM drive in MATLAB/Simulink environment.
Anjan Biswas - One of the best experts on this subject based on the ideXlab platform.
-
optical solitons with modified extended direct Algebraic Method for quadratic cubic nonlinearity
Optik, 2018Co-Authors: Malwe Boudoue Hubert, Mibaile Justin, Gambo Betchewe, Serge Y Doka, Anjan Biswas, Qin Zhou, Mehmet Ekici, Seithuti P MoshokoaAbstract:Abstract This paper implements modified direct Algebraic Method to secure soliton solutions in quadratic-cubic medium. Bright and dark-singular combo solitons are obtained along with their existence criteria. Several other solutions to the model including periodic singular solutions are also presented.
-
optical solitons with lakshmanan porsezian daniel model by modified extended direct Algebraic Method
Optik, 2018Co-Authors: Malwe Boudoue Hubert, Mibaile Justin, Gambo Betchewe, Serge Y Doka, Anjan Biswas, Qin Zhou, Kofane Timoleon Crepin, Ali Saleh AlshomraniAbstract:Abstract This paper obtains bright and dark–singular combo solitons for the Lakshmanan–Porsezian–Daniel model by the aid of modified extended direct Algebraic Method. Both Kerr law and power law nonlinearities are considered. However, it is only the case of Kerr law that led to soliton solutions. Some additional solutions also emerged and they are singular periodic waves and elliptic functions.
-
optical solitons in parabolic law medium with weak non local nonlinearity using modified extended direct Algebraic Method
Optik, 2018Co-Authors: Malwe Boudoue Hubert, Mibaile Justin, Gambo Betchewe, Serge Y Doka, Anjan Biswas, Qin Zhou, Ali Saleh Alshomrani, Mehmet EkiciAbstract:Abstract This paper obtains bright and dark-singular combo optical solitons in a parabolic law medium that is coupled with weak non-local nonlinearity. The Method of modified extended direct Algebraic Method is applied to secure these soliton solutions. Additionally, several other solutions in terms of elliptic functions naturally fall out of the integration scheme as a byproduct.
