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Abstract (680 Views) | Full-Text (PDF) (594 Downloads)   |   Highlights
  • Investigating the effect of Miniaturized Inertia Generator (MIG) geometric parameters on the efficiency and energy.
  • Design optimization using response surface methodology (RSM).
  • A survey and depiction of the relationship between the maximum produced voltage and magnetic flux.
  • Designing a shear plate as a safety mechanism for MIG activation under the specific acceleration.
  • Studying the effect of initial acceleration on the produced quantities such as voltage, power, and energy.

Abstract (393 Views) | Full-Text (PDF) (94 Downloads)   |   Highlights
  • Introducing multi-robot simultaneous localization and mapping (MR-SLAM) system is implemented within a dynamic environment.
  • Using a probabilistic approach based on EKF is proposed to detect moving landmarks and consequently improve the performance of SLAM in dynamic environments.
  • Introducing the expected landmark area (ELA).

Abstract (546 Views) | Full-Text (PDF) (136 Downloads)   |   Highlights
  • A Markov model is proposed for the impact of human error modeling on failure rate of the protection system.
  • The optimum time interval of routine test of protection system is determined.
  • The proposed Markov model is applied to the protection system of power transformers.
  • Results show that the human error rate has a significant impact on the increase of failure rate and decrease of the optimum time interval of routine test of the protection system.

Abstract (332 Views) | Full-Text (PDF) (71 Downloads)   |   Highlights
  • The impedance trajectory and interferes with the OOS relay in the presence of STATCOM.
  • Online estimation of Thevenin equivalent based on time-variant system identification through recursive least square.
  • Proposed a modified approach based on Thevenin equivalent to correct the impedance deviation caused by the STATCOM.

Abstract (423 Views) | Full-Text (PDF) (74 Downloads)   |   Highlights
  • Single BU replaces Series of processing elements in the pipeline architecture of the FFT processor.
  • The design has less area consumption.
  • Suitable for DIF as well as DIT computation.
  • Small independent computation.

Abstract (198 Views) | Full-Text (PDF) (53 Downloads)   |   Highlights
  • An analytical model has been presented to determine optimal iron pole shape in STPM machine considering magnet width as well as the iron core relative permeability.
  • The proposed model is obtained by solving the Maxwell equations by considering the appropriate boundary conditions in the Cartesian pseudo-coordinate system.

Abstract (445 Views) | Full-Text (PDF) (112 Downloads)   |   Highlights
  • The industrial process consumes quite a huge amount of energy.
  • The cost of energy consumption is closely behind the cost of raw materials in the determination of the cost of production.
  • The use of programmable logic controller ladder diagram with the Fuzzy logic controller is successfully implemented to effect energy saving in the process industry.
  • There is a noticeable and significant improvement in energy and cost saving with the implementation of the approach

Abstract (257 Views) | Full-Text (PDF) (67 Downloads)   |   Highlights
The major merits of the suggested converter can be classified as:
  • high voltage conversion ratio in both step-up and step-down modes;
  • Existence of zero voltage switching (ZVS) for the power diode, which decrease the regenerative diode reverse;
  • Lower peak voltage through the semiconductors;
  • Low size, volume, and cost.

Abstract (316 Views) | Full-Text (PDF) (107 Downloads)   |   Highlights
  • This paper proposes a new single-to-three phase converter that is based on a special type of rotating magnetic field transformers.
  • In the proposed system, a switching technique is also introduced to obtain nearly a two-phase voltage.
  • The results confirm the validity of the proposed converter and also THD reduction in comparison to the conventional converter.

Abstract (264 Views) | Full-Text (PDF) (59 Downloads)   |   Highlights
  • The Major contribution of the work includes the design of GD-QFB OTA and its uses in GD-QFB MOS based Gm-C filter. GD-QFB MOS technique is a good low power design technique.
  • In this paper, GD-QFB MOS differential input two-stage OTA has been presented. The simulation results show the significant improvement in DC gain, CMRR, and reduction in the power consumption of OTA.
  • Further, the proposed OTA is used in the design of the tunable Gm-C filter for low power PLL applications in the range of 1-3 GHz.

Abstract (246 Views) | Full-Text (PDF) (65 Downloads)   |   Highlights
  • Developing an advanced distribution automation planning approach in which the emergency-based demand response programs are supposed to be employed in the service restoration process.
  • Comprehensive modeling of the emergency-based demand response programs through considering the restrictions, and behavior of customers in participating in the service restoration process.

Abstract (259 Views) | Full-Text (PDF) (80 Downloads)   |   Highlights
  • Proposing a novel method base on load angle for direct control of active power and stator flux of PMSG-based wind turbine.
  • Control of active power and stator flux by the proposed discrete-time algorithm.
  • Higher dynamic response due to the elimination of inner current control loops and no need to coordinate system transformation blocks as well as the PI controllers and their adjustment.
  • No need to permanent magnet flux vector and several machine parameters such as stator inductances which can improve the robustness of the control system.

Abstract (132 Views) | Full-Text (PDF) (42 Downloads)   |   Highlights
  • Effective Control of BCDFIG in grid-connected mode.
  • The active and reactive powers are appropriately exchanged with the grid.
  • Model predictive control improves the BCDFIG performance.
  • Achieving better transient response and harmonic performance.

Abstract (115 Views) | Full-Text (PDF) (28 Downloads)   |   Highlights
  • In this work, three different antenna arrays are designed and fabricated to generate three OAM modes [mode 0, mode +1, and mode -1]. The fabricated OAM antenna is compact related to other uniform circular array OAM antenna. The purity of OAM pattern of each mode is also improved to some extent by using of radial orientation array elements.
  • Apart from successfully generated the OAM beam, the effect of dimensional parameters like antenna array radius (R) and  number of antenna element (N), on directivity pattern and vortex null-width is also analyzed and results have been shown.
  • The effect of increasing OAM mode (l = 0 to +4) on the vortex null-width and in absolute directivity is also analyzed and results have been shown.
  • The OAM phase for mode 0 to 4 is simulated to study the effect on the purity of OAM phase pattern and maximum possible OAM modes are observed.
  • All these results are compared with two other similar kinds of works.

Abstract (62 Views) | Full-Text (PDF) (18 Downloads)   |   Highlights
  • Up to now, most control methods used for CDFIGs are based on voltage oriented control, and the nonlinear control method is not proposed for them.
  • The effectiveness of the proposed method in different scenarios such as feeding unknown, nonlinear and harmonic distorted loads is verified. As well, the effect of variable wind or prime mover’s speed on the output voltage is compared with three control methods.
  • In order to present a clear comparison between the proposed method and some recent methods, we compare three methods with simulation and experimental tests: VOC, SMC, and TSMC.
  • The state-space equation of CDFIG has 6 states. Using SMC and TSMC control, we use only the output variables of CDFIG, which feeds an isolated load and the output voltage control with constant and step-changed references is verified.

Abstract (70 Views) | Full-Text (PDF) (33 Downloads)   |   Highlights
  • We Use convolutional bottleneck features for robust speech recondition.
  • We analyze the mutual information between input and each layer, and show that bottleneck layer has a high information about network input.
  • We show that convolutional bottleneck network training performance is related to the mutual information of bottleneck features and class labels.

Abstract (63 Views) | Full-Text (PDF) (48 Downloads)   |   Highlights
  • The original contribution of this paper is the application of the artificial neural networks (ANN) in the space vector pulse width modulation (SVPWM) and experimental investigation of this novel method.
  • A SVPWM method based on ANN controller is developed for two-level inverter and compared with conventional SVPWM strategy. On the other hand, the proposed technique is compared to pulse width modulation (PWM).
  • The proposed SVPWM method minimized the total harmonic distortion (THD) compared to the SVPWM and PWM.
  • The proposed technique is simple and easy to implement.
  • The proposed method is robust compared to traditional SVPWM and PWM techniques.
  • In this paper, we propose a new SVPWM technique of VSI.

Abstract (40 Views) | Full-Text (PDF) (10 Downloads)   |   Highlights
  • FPGA implementation of low power true random number generator through ring oscillator for IoT applications and smart cards is presented.
  • Ring oscillators based on higher jitter and sampling techniques are exploited to present true random number generator.
  • Further statistical parameters of the generated data stream are enhanced through post processing technique.
  • The presented true random number generator technique does not depend on the characteristics of a particular FPGA.
  • The presented technique consumes low power, requires low hardware footprints, and passes the entire NIST statistical test suite.
  • True random number generator with enhanced security through post-processing may be applied for encryption/decryption of data in smart cards and IoT.

Abstract (49 Views) | Full-Text (PDF) (12 Downloads)   |   Highlights
  • The combined model of generation expansion planning considering small signal stability performance of power system is presented.
  • A multi-objective representative of the problem is considered and that is solved with ANSGM-III.
  • The role of WAS and delay of wide-area signals in GEP is evaluated with multiple scenarios.

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© 2020 by the authors. Licensee IUST, Tehran, Iran. This is an open access journal distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) license.