Results 21 to 30 of about 10,569,966 (288)

Observer-based H∞ PID control for discrete-time systems under hybrid cyber attacks

open access: yesSystems Science & Control Engineering, 2021
In this paper, the observer-based $ H_{\infty } $ PID control problem is studied for linear discrete-time systems subject to hybrid cyber attacks. Two sets of Bernoulli distributed stochastic variables are utilized to characterize the random nature of ...
Pengyu Wen   +4 more
doaj   +1 more source

Linear System Analysis and Optimal Control of Natural Gas Dynamics in Pipeline Networks

open access: yesAutomatica, 2023
We design nonlinear and adaptive linear model-predictive control (MPC) techniques to minimize operational costs of compressor-actuated dynamics in natural gas pipeline networks. We establish stability of the local linear system and derive rigorous bounds on error between the nonlinear and linear system solutions.
Luke S. Baker   +4 more
openaire   +3 more sources

Research Progress on Calculation and Control of Unaccounted for Gas of Natural Gas Pipeline Network

open access: yesJournal of Physics: Conference Series, 2021
Abstract At present, volume measurement is still used in transfer measurement of natural gas in China, so the calculation and management of Unaccounted for Gas are based on volume measurement. With the change of natural gas measurement method from volume measurement to energy measurement, the calculation and management of Unaccounted for
Huiyu Chen   +3 more
openaire   +1 more source

Girth welding technology used in Heihe-Changling Section of China-Russia Eastern Gas Pipeline

open access: yesYou-qi chuyun, 2020
This paper describes the girth welding technology for the north section (Heihe-Changling Section) of China-Russia Eastern Gas Pipeline concerning its characteristics of high steel grade, large diameter, high pressure, large throughput and low temperature.
Yongli SUI, Pengyu WANG
doaj   +1 more source

Prospect for the development of natural gas network and the multi-energy integration technology in pipeline networks

open access: yesYou-qi chuyun, 2023
The natural gas pipeline network, as an important part of the natural gas industry and an indispensable participant in the energy Internet, plays a crucial role in the construction of China's energy industry and in the development of national economy. In
Weihe HUANG, Jing GONG
doaj   +1 more source

Review of optimization modeling and solution of long-distance natural gas pipeline network

open access: yesYou-qi chuyun, 2023
The optimization of the natural gas pipeline network is of great significance to reduce the operating cost of the pipeline network and improve the reliability of the natural gas supply.
Peng ZHOU, Qi WEI
doaj   +1 more source

Research Progress on Interference and Protection of Grounding Electrodes of HVDC Transmission on Buried Pipeline [PDF]

open access: yesCailiao Baohu
With the increasing number of high voltage direct current(HVDC) transmission projects in China,the issue of interference from HVDC system grounding electrodes on buried metal pipelines has become increasingly prominent.In order to conduct accurate ...
GAO Jie, TIAN Haizhou, LI Shaofei, LIU Tianhui, GUO Xiaodong, AN Bing, LU Tao
doaj   +1 more source

Optimized preparation method of natural gas pipeline transportation plan based on minimum energy consumption

open access: yesYou-qi chuyun, 2021
At present, the natural gas pipeline transportation plan is mainly prepared based on the artificial experience, which requires considerable time and energy, unfavourable for the overall optimization of the plan.
Shuo JIN   +3 more
doaj   +1 more source

Study on the multi-objective optimization of reliability and operating cost for natural gas pipeline network

open access: yes, 2021
The development of natural gas pipeline network towards larger scale and throughput has urged better reliability of the pipeline network to satisfy transportation requirement.
Peng Wang   +13 more
core   +1 more source

Effects of hydrogen blending on hydraulic and thermal characteristics of natural gas pipeline and pipe network

open access: yes, 2021
Blending a fraction of hydrogen into the natural gas pipeline or urban pipe network is an efficient approach for hydrogen delivery. In this paper, the mathematical model of Hydrogen-Blended Natural Gas (HBNG) transportation is established, and the ...
Peng Wang   +9 more
core   +1 more source

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