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- S. M. M. Mirtalaei, J.S. Moghani, Kaveh Malekian, Babak Abdi
- 2008 International Symposium on Power Electronics…
- 2008

This paper presents a novel sensorless control method for brushless DC motors using two similar fuzzy logic-based neural network observers. Firstly, two fuzzy logic observers are designed and used to estimate back-EMF space vector components in the stationary reference frame. The inputs of the observers are measured values of line to line voltages and… (More)

- Babak Abdi, A.H. Ranjbar, Kaveh Malekian, Jafar Milimonfared, G . B . Gharehpetian
- 2008 International Symposium on Power Electronics…
- 2008

The development in the technology of power semiconductors results in their application in FACTS devices, static switches, hybrid switches, HVDC, and high power converters. Since the nominal current of such devices does not satisfy high power applications, in order to increase the current ratings, switches should be paralleled. In this paper, the behavior of… (More)

- Mahed Abroshan, Kaveh Malekian, Jafar Milimonfared, B.A. Varmiab
- 2008 International Symposium on Power Electronics…
- 2008

This paper presents an optimum direct thrust force control for interior permanent magnet linear synchronous motor (PMLSM) over wide velocity range in which the maximum thrust force per ampere (MTPA) strategy is used below the base velocity and field weakening strategy is used above the base velocity. Using MTPA strategy, copper losses is minimized in… (More)

- Kaveh Malekian, Anne Gohlich, Liana Pop, Wolfgang Schufft
- 2014 6th International Conference on Information…
- 2014

The simultaneity of power produced by wind turbines (WTs) as a function of total power of the wind farm (WF) is investigated in the first part of this paper, and subsequently, a probabilistic approach to model the simultaneity of WT power in a WF is proposed. The investigation of the WT power simultaneity is carried out by analyzing measurement data sets.… (More)

- Kaveh Malekian, Uwe Schmidt, Ali Shirvani, Wolfgang Schufft
- 2014 6th International Conference on Information…
- 2014

The behavior of wind farms with doubly fed induction generators (DFIGs) in fault ride through (FRT) conditions is investigated in the first part of this article. The requirements mandated by grid-codes to contribute to the voltage stability are introduced. Afterwards, the problems associated with applying the crowbar system in FRT conditions are discussed.… (More)

- Kaveh Malekian, Uwe Schmidt, Abudllah Hoshmeh, Ali Shirvani
- 2014 6th International Conference on Information…
- 2014

Modeling underground cables for application in harmonic calculations in frequency domain is discussed thoroughly in this paper. At first, equations and frequency-dependent parameters to describe the zero-, negative-, and positive-sequence cable impedances as well as the coupling between them are presented. Afterwards, the influence of cable arrangement on… (More)

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