Since the pressure fluctuation signals are masked by noise and can not be detected, the oil pipeline leakage detection method is not satisfactory on small leakage problem, without more accurate warning and location. This paper uses discrete wavelet…
Field-pipeline operations are more easily affected by complex environment in comparison of common long-distance pipeline. Its failures such as leakage demand to be dealt with more urgently and efficiently. This paper proposes a leakage detection…
Wind power generation is an attractive renewable energy technology that promotes the reduction of greenhouse gases. Nevertheless, the inherent alternating nature of wind power affects the stability of the grid as it results in frequency variations,…
The increase in energy demand needs to be met with environmentally friendly resources to lower the production of greenhouse gases. Solar power is a popular choice as it is available in abundance and is relatively cheap. However, the large-scale…
Energy storage systems (ESSs) have an assistive role in the operation of multi-carrier energy systems. This paper presents a type of natural gas (NG) ESS called NG tank and studies the operation and flexibility contributions of this ESS in the…
In order to alleviate the shortage of natural gas supply in winter, relevant policies have been issued to promote the construction of gas peak-shaving and storage facilities. Large-scale gas storage can transfer the supply-demand relationship of…
The destruction of the atmosphere are the reasons for worldwide increase temperature. This problem come from utilization of petroleum fuel electrification. The increased use of clean power to replace petroleum can slow the destruction of the…
In terms of nature, the internal combustion engine is a kind of power machinery. Through the analysis of the maintenance operation flow of diesel locomotives and combined with the control principle of diesel locomotives, the key cost waste points in…
Hybrid microgrid (HMG) is a small-scale power system consisting of distribution generations (DGs) and loads operating as one controllable unit with regards to grid. It gives advantages such as reliable power supply, lesser carbon emission,…
The introduction of variability with the integration of renewable energy sources in the generation-side of the power network degrades the power quality of the supplied power. With the increased demand of renewable energy integration in the…
Wind power is a widely utilized renewable energy resource, but the irregular nature of wind affects the resul-tant power supply quality and results in fluctuating power. Large scale penetration of variable power causes issues such as frequency…
The intermittent nature of solar power prevents the large-scale penetration of Photovoltaic (PV) systems in the utility grid as it causes various irregularities such as voltage fluctuations, frequency deviations, and reduced overall output power…
Recently, there has been a dramatic increase in the need to meet the excessive energy demand with environmentally friendly renewable energy resources. Large scale penetration of variable Photovoltaic (PV) power leads to multiple instabilities such as…
Photovoltaic (PV) power is an extensively used renewable energy resource, but its intermittent nature affects the power supply quality as it results in issues such as frequency aberrations and voltage variations. Battery Energy Storage Systems (BESS)…
Wind power generation is an attractive renewable energy technology that promotes the reduction of greenhouse gases. Nevertheless, the inherent alternating nature of wind power affects the stability of the grid as it results in frequency variations,…
The increase in energy demand needs to be met with environmentally friendly resources to lower the production of greenhouse gases. Solar power is a popular choice as it is available in abundance and is relatively cheap. However, the large-scale…
Under the pressure of climate change, the demands for alternative green hydrogen (H2) production methods have been on the rise to conform to the global trend of transition to a H2 society. This article proposes a multirenewable-to-hydrogen production…
To study the fluctuation characteristics of the Yangtze river ro-ro freight index, the monthly data of Yangtze river ro-ro freight index, international crude oil price and sales volume of Chinese commercial vehicles are selected, and the empirical…
In terms of nature, the internal combustion engine is a kind of power machinery. Through the analysis of the maintenance operation flow of diesel locomotives and combined with the control principle of diesel locomotives, the key cost waste points in…
The intermittent nature of solar power prevents the large-scale penetration of Photovoltaic (PV) systems in the utility grid as it causes various irregularities such as voltage fluctuations, frequency deviations, and reduced overall output power…