Md. Sazib Mollik, M. A. Hannan, Md Subbir Reza, M. S. Abd Rahman et al.
Solid-state transformer (SST) technology is one of the developing technologies that will be widely used in the future to integrate low-voltage and high-voltage networks with control circuitries and power electronics converters, facilitating renewables integration in smart grid applications. SST tech...
Tareq M. A. Al-Quraan, Oleksandr Vovk, Serhii Halko, Serhii Kvitka et al.
The influence of reduced voltage on the service life of an induction motor is considered in this article. An algorithm for calculating the rate of thermal wear of induction motor insulation under reduced supply voltage depending on the load and the mechanical characteristics of the working machine h...
Hala Alami Aroussi, Elmostafa Ziani, Manale Bouderbala, Badre Bossoufi
<span>This work is dedicated to the study of an improved direct torque control of the doubly fed induction motor (DFIM). The control method adopts direct torque control 'DTC' because of its various advantages like the ease of implementation which allows a good performance at transient and stea...
Cunjian Xia, Xiaocui Wang, Shihua Li, Xisong Chen
To improve the disturbance rejection property of permanent magnet syn- chronous motor (PMSM) speed control system, the integral sliding mode control (ISMC) method is introduced in the control design of speed loop. However, the simulation and implementation results show that it is difficult to balanc...
R. Saidur, Mohammad Arif Hasan Mamun, Shuichi Nagata
Magnetohydrodynamic (MHD) mixed convection in a liddriven cavity along with joule heating is studied numerically. The cavity consists of adiabatic horizontal walls and differentially heated vertical walls, but it also contains a heat conducting horizontal circular cylinder located somewhere within t...
Nazmul Islam Nahin, Shuvra Prokash Biswas, Md. Kamal Hosain, Anas Bin Islam et al.
Conventional finite state predictive torque control (FS-PTC) suffers from increased computational complexity, torque ripple, and switching losses due to using all the available voltage vectors for prediction and estimation. This paper presents an enhanced FS-PTC algorithm for two-level voltage sourc...
Mohammad Saiful Islam, Md. Rashidul Islam, Md Shafiullah, Md. Samiul Azam
Low-frequency oscillation (LFO) is a significant problem for Multi-machine power system (MPS) networks. It makes the power system networks unstable. In this article, a new Power system stabilizer (PSS) design method is demonstrated using the Dragonfly algorithm (DA). To enhance system damping, a dam...
Arifur Rahman, Nayeem Ansari, Nazneen Ahmed, Kazi Mujibur Rahman et al.
Mhia Md. Zaglul Shahadat, Takeshi Mizuno, Yuji ISHINO, Masaya TAKASAKI
Mohammad Abdul Mannan, Toshiaki Murata, Junji Tamura
Abstract The state space model of an induction motor (IM) in a synchronously rotating reference frame behaves as a bilinear system due to the products of state variables and inputs. Thus, it is desirable to design an observer based on bilinear observer theory. This article deals with the design of a...
Minghao Tong, W. Hua, Ming Cheng, Peng Su et al.
Recently, multi-phase flux-switching (FS) permanent-magnet (PM) (FSPM) machines have received considerable attention in high performance and critical drive applications because of their remarkable advantages including high power density and high efficiency, especially the inherent fault-tolerant cap...
Mohammad Ashrafultre Alam, Mohammad Abdul Mannan
Now a days vehicles with electrical differentials are becoming more and more popular. The mechanical differentials are replaced by using two motors. In the electrical vehicle (EV) different types of electrical machines such as induction motor, permanent magnet synchronous motor etc. are used. The co...
Enamul Basher, Anisur Rashid Khan
ABSTRACT Eddy currents in the quadrature axis of O.C. machines, which arise in nonstationary conditions, affect the performance of the machine considerably. The nonlminated yoke of O.C. machine carry eddy currents, and the quadrature axis components of their M.M.F's are very important in analysing m...
Chaowen Deng, Pu Li, Yanyan Huang, Qinghua Zhou et al.
Yunsong Yan, Ming Li, Yi Tang, Xiaolei Qu
Increasing wind and solar powers are integrated to power systems through the converters, and gradually replace the thermal synchronous generators (SGs), possibly intensifying low-frequency oscillation in power system. Energy storage (ES) helps to smooth power fluctuation and balance active power. A ...