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Feasibility study of hydrogen-ammonia synergistic combustion in scramjets across broad Mach ranges. [PDF]
Nat CommunSong X +6 more
europepmc +1 more source
A CMOS Integrated Low-Power, Ultra-Low-Frequency Relaxation Oscillator for Neuromorphic Applications
2021 IEEE International Midwest Symposium on Circuits and Systems (MWSCAS), 2021 In the emulation of dynamic activities of neurons, relaxation oscillator plays a decisive role in the form of frequency coding and frequency synchronization. This paper presents a programmable ultra-low-frequency relaxation oscillator for neuromorphic network applications. The oscillator adopts a 250 pA charging current to achieve ultra-low oscillation
Xiaoyan Cheng +3 more
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Analysis of Ultra-Low Frequency Oscillation in Southwest Power Grid Based on Measurement Data
2018 37th Chinese Control Conference (CCC), 2018The ultra-low frequency oscillation (ULFO) is found in the future Southwest Power Grid under some faults, which will asynchronous interconnect with the State Grid via the HVDC and VSC-HVDC at the end of the 2018. This paper introduces the phenomenon of ultra-low frequency oscillation of asynchronous interconnection in Southwest Power Grid and analyzes ...
Ancheng Xue, Jiawei Wang, Tianshu Bi
exaly +2 more sources
Research on Damping Control Index of Ultra-Low-Frequency Oscillation in Hydro-Dominant Power Systems
Sustainability, 2020 In recent years, ultra-low-frequency oscillation (ULFO) is a prominent problem in power systems of dominant hydropower. In order to suppress ULFO, the most effective strategy is the governor parameters optimization to improve the system damping within ...
Gang Chen, Chang Liu, Chengwei Fan
exaly +2 more sources
Ultra-Low-Frequency Oscillation Analysis of Hydroelectric Units Based on Nyquist Method
2023 3rd International Conference on Energy, Power and Electrical Engineering (EPEE), 2023Zhijie Ma
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Analysis of Ultra-low Frequency Oscillation Stability of Power Systems
2024 6th International Conference on Power and Energy Technology (ICPET)Kesu Cai +5 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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