Results 11 to 20 of about 7,822,772 (238)
Modulation techniques for data superposition on amplitude-modulated signals [PDF]
, 1983 Double-sideband amplitude-modulation is widely used because of its simplicity in transmission and reception, but in a number of applications the inclusion of a data channel has become an additional requirement.
Al-Jalili, Yazan Othman Ahmad
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Zhongguo dianli, 2022 In order to achieve accurate and fast primary frequency regulation of power grid without compromising the safety of the participating energy storage system, this paper proposes an energy storage assisted frequency modulation adaptive optimization control
Jiacheng ZHANG +3 more
doaj +1 more source
Study on Quantitative Evaluation Index of Power System Frequency Response Capability
Energies, 2022 Frequency stability is an important factor for the safety and stability of the power system operation. In a traditional power system, the operation stability is ensured by the inertia response, primary frequency modulation, and secondary frequency ...
Cheng Chi, Hai Zhao, Jiahang Han
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南方能源建设, 2021 [Introduction] The DCS system of two 700 MW units adopting "constant-sliding-constant" variable pressure operation mode in Zhuhai Power Plant adopts DIASYS Netmation distributed control system, which is provided by Mitsubishi company of Japan. At present,
LI Qiang
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Zhongguo dianli, 2020 In this paper, the design parameters such as the heat balance diagram of a 660 MW water heat and power cogeneration supercritical unit are used to conduct the theoretical study based on the quantitative analysis of the primary frequency modulation ...
Shunqing CHEN +2 more
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Energies, 2022 Based on the energy storage type of hydraulic wind turbines (HWTs) and in view of the unit frequency drop problem under high wind power proportion conditions, this paper proposes a method of primary frequency control under maximum power point tracking ...
Lijuan Chen +6 more
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Design Method for the Governor Power System Stabilizer
Zhongguo dianli, 2021 In order to suppress the low frequency oscillation caused by governors, this paper proposes a new design method for the governor power system stabilizer (GPSS), where the requirement of the regulating speed is satisfied. A new GPSS optimization model was
Risheng FANG +8 more
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Tuning of human modulation filters is carrier-frequency dependent [PDF]
, 2013 Recent studies employing speech stimuli to investigate 'cocktail-party' listening have focused on entrainment of cortical activity to modulations at syllabic (5 Hz) and phonemic (20 Hz) rates.
Reiss Joshua D. +11 more
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Modulation-frequency acts as a primary cue for auditory stream segregation [PDF]
, 2013 In our surrounding acoustic world sounds are produced by different sources and interfere with each other before arriving to the ears. A key function of the auditory system is to provide consistent and robust descriptions of the coherent sound groupings ...
Alexandra Bendixen +9 more
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High-Frequency Modulation Spectroscopy with a THz Quantum-Cascade Laser [PDF]
, 2013 A terahertz absorption spectrometer with a quantum-cascade laser (QCL) for high-resolution molecular spectroscopy is realized. The spectrometer is based on highfrequency (up to 50 MHz) modulation of the QCL frequency.
H.-W. Hubers +11 more
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