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Ultra Low Frequency Low Power Oscillator using Ultra-Capacitor and Advanced Flywheel
2018 International Conference on Smart Electric Drives and Power System (ICSEDPS), 2018Ultra-low-frequencies (< 1.0 Hz) are required for signal transmission in rocky layers for seismic studies. This frequency region is tougher to work on. Various methods of generating these frequencies have been in use since several years. In electrical science, it has been known ever-since that energy in electric field of a capacitor and energy in ...
Rohan Bherde +2 more
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Frequency Behaviour of FeFET-Based Ultra-Low-Power Coupled Oscillator Neurons
2020 IEEE International Symposium on Circuits and Systems (ISCAS), 2020The inefficiencies of von-Neumann computing architectures in performing high-level machine learning and neuromorphic operations have led to the need for new computational systems such as oscillatory neural networks, that are designed using emerging technologies.
Hossein Eslahi +2 more
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Limit cycle in the ultra-low-frequency oscillation of islanded power systems
2017 13th IEEE International Conference on Control & Automation (ICCA), 2017Ultra-low-frequency oscillation with almost constant amplitude is a kind of frequency oscillation in power system. It has occurred in several hydro-dominant islanded power systems. With the nonlinearity of hydraulic turbines, a nonlinear model of power system is built in the paper.
Xiaomin Lu +4 more
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Generation of ultra-low jitter radio frequency phase pulses by a phase-locked oscillator
Optics Letters, 2021We demonstrate a novel, to the best of our knowledge, method for mode locking of an oscillator, which is based on the injection of a strong sinusoidal signal from an external source into the cavity. The oscillator generates a low phase noise carrier signal with a train of ultra-low jitter, short 2 π phase pulses at a repetition ...
Andrei Diakonov, Moshe Horowitz
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Mechanism and Measurement of Ultra-Low-Frequency Oscillations in Asynchronous Networks
2018 IEEE Power & Energy Society General Meeting (PESGM), 2018The asynchronous interconnection mode between the Yunnan Province Power Grid and China Southern Power Grid was implemented in 2016. However, during the practical experiment of raising HVDC power in the asynchronous mode, the frequency of the Yunnan Power Grid oscillated at ultra-low frequency for a long period.
Chunxiao Liu +3 more
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Ultra Low Frequency Low Power CMOS Oscillators for MPPT and Switch Mode Power Supplies
2018 14th Conference on Ph.D. Research in Microelectronics and Electronics (PRIME), 2018This paper presents the design of two low power consumption analog oscillators implemented in a $0 . 35\mu \mathrm {m}$ CMOS technology. These oscillators were designed for a power conditioning circuit with an analogue Perturbation and Observation (P&O) Maximum Power Point Tracker (MPPT) to maximize the scavenged power generated by energy harvesting ...
Francarl Galea +4 more
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On the Spectrum of Ultralow-Frequency Oscillations of the Ionosphere in the Pc1 Range
Izvestiya, Physics of the Solid Earth, 2023The idea of Alfvén waves plays a key role in the theory of ultra-low-frequency (ULF) electromagnetic oscillations of cosmic origin. The article is dedicated to the 80th anniversary of the discovery of Alfvén waves. It focuses on the Ionospheric Alfvén Resonator, or IAR for short. ULF oscillations are excited in the IAR in the Pc1 range (0.2–5 Hz). When
Anatol Guglielmi +2 more
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Ultra-Low-Frequency, Three-Phase Oscillator
Proceedings of the IRE, 1954This paper describes the design of a three-phase oscillator covering the range from 0.01 to 1,000 cycles per second. The problems peculiar to this frequency range, and their solutions, are discussed. Certain advantages inherent in three-phase operation are explained.
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Emergency Control Strategy of Ultra-low Frequency Oscillations Based on WAMS
2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia), 2019In this paper, an emergency control strategy of ultra-low frequency oscillations (ULFO) is presented. The multi-signal Prony algorithm is used to identify frequency signals from WAMS. Then the criterion of ULFO is proposed based on the Prony analysis results.
Qin LIU +7 more
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Ultra low frequency CMOS ring oscillator design
2014 Recent Advances in Engineering and Computational Sciences (RAECS), 2014In this paper, the concept of CMOS thyristor has been used to implement low frequency ring oscillator using 2.5 volt power-supply and 1pF load capacitance using 250nm technology. By using the conventional CMOS thyristor structure the frequency of the output sinusoidal waveform is of the order of KHz, which has been further improved in proposed CMOS ...
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