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Search results for: frequency
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Year: 2007, Volume: 7, Issue: 2
... Data Acquisition Device The Data Acquisition (DAQ) device ICS-645 is designed for high frequency, high precision, high-density data acquisition and high-speed test and measurement applications. ... squirrel cage induction motor and investigation for incipient fault detection and fault detection a 22 kVA-frequency converter. Two back-to-back PWM- methods existing in the literature, using Wound ...
122. Design of an Adaptive Flux Observer for Sensorless Switched Reluctance Motors Using Lyapunov Theory
Year: 2020, Volume: 20, Number: 2
... problem of sensorless SRM at standstill and very low speed is solved using a low frequency ramp method. The complete sensorless control of SRM drive system using the proposed ... relatively large at low speed and starting. medium, and high speeds. A low-frequency ramp method is A general nonlinear magnetization model was proposed in proposed to excite ...
Year: 2015, Volume: 15, Number: 2
... in both active and sleep state batteries for energy storage. It also uses pulse frequency based on the power consumption. To maintain the voltage modulation (PFM) ... CCM) is obtained by the Mica2, Processor Radio State averaged modeling. The high-frequency switching ripples in MPR400CB, State the inductor current and capacitor voltage waveforms are ...
Year: 2012, Volume: 12, Number: 3
... impedance value is about 118 kΩ at low frequencies and its value decreases as the frequency Therefore, the circuit simulates an inductor in series with increases. Its value ... no. 6, pp. 422 – 423, 1995. in time and frequency-domain. Time-domain functionality [3] P. R. Gray, P. ...
Year: 2014, Volume: 14, Number: 2
... University of Malaya, 50603 Kuala Lumpur, Malaysia wasif@um.edu.my Abstract — Radio frequency identification (RFID) is the coverage in a 3D space. The antenna ... proposed system is capable to locate the tags with lower technique with non-line-of-sight mitigation using low-frequency error. Even if the obstacles are placed in the test sound," ...
Year: 2017, Volume: 17, Number: 2
... syllables, we first calculated the probability of syllable fluency breaks as well as higher frequency and length of transition that can be used to classify the syllable transition inter-syllabic ... case of the elderly, a key [17] C. d'Alessandro, "Time-frequency speech transformation based on an contributing factor is their improper and unnatural speech elementary ...
Year: 2017, Volume: 17, Number: 4
... speed deviation. the TCPS-based damping controller. In this study, an angular oscillation frequency of the C. Modeling of a Power System Stabilizer electromechanical oscillation mode with ... of the potential applications of the FACTS of power systems through the rapid damping of low-frequency devices [12 – 19]. electromechanical oscillations (LFEOs) is the ...
Year: 2021, Volume: 21, Number: 3
... , because of higher efficiency and power density. Such systems achieve these using Medium Frequency Transformers (MFT) in the converter modules as galvanic separation. State of ... is more suitable for inverters for the Japan-Tokyo 1.5 kV DC metro in 2015, high-frequency applications in the MHz range. resulting in a 30% reduction in energy ...
Year: 2007, Volume: 7, Issue: 2
... cooperate in order to accomplish a specific is the lower reliability in consequence of radio frequency task. Unlike industrial WNs, which use standardized interferences. The range of ... . conditions. Attacks aiming denial of service can be Hardware techniques use so called frequency-hopping launched at any layer of an ad hoc network: jamming radio spread spectrum ...
130. Transformer Core Saturation Fault Analysis using Current Sensor Signals and Thermal Image Features
Year: 2023, Volume: 23, Number: 4
... , phenomena are challenging to differentiate in CT fault system faults, overvoltage and under frequency operations. signals potentially causing false detections or delayed The internal faults are due ... Measures for Better Use of asymmetric three-phase transformers serving unbalanced nonlinear Nanocrystalline Cores in Air-Cooled Medium-Frequency Transformer loads," IEEE Trans. Power Deliv., vol. 23 ...
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