
Aiming at the voltage and current measurement for battery banks in mobile communication base station, according to voltage characteristics of wide common-mode range, three methods including sampling with resistors, converting with analog optical coupler and differential subtractor based on amplifier are presented.For bi-directional current characteristic, both single and double amplifier methods are discussed respectively.Also, all the methods mentioned above are analyzed. [pdf]

Communication equipment usually uses -48V DC power supply, and the electricity generated by photovoltaic power generation systems is also DC power, so the photovoltaic power generation system is combined with the communication base station, and the electricity generated by the photovoltaic system is used to directly power the communication equipment, reduce the consumption of city electricity, and achieve the effect of energy conservation and emission reduction. [pdf]

This procurement is to establish a single supplier Framework Agreement under which there will be Call-Offs for the supply, installation, testing, commissioning, and maintenance of Uninterruptible Power Supply components & Central Battery Systems primarily for the new Phase One Stations to be constructed at Euston, Old Oak Common, Birmingham Curzon Street and Interchange (base scope). [pdf]

On December 29, 2024, with the energized operation of all equipment in the 750 kV Desert Substation, the 750 kV Dingzikou Transmission and Transformation Project, a supporting power grid project for the "Shagohuang" large-scale wind power and photovoltaic base in Northwest China's Qinghai, was completed and put into operation, adding another "green power highway" to the development and utilization of new energy and power supply in Qinghai Province. [pdf]

This paper mainly describes the overall design and theoretical thermal calculation of the battery compartment of the energy storage system, and carries out static load calibration and seismic systematic research by using ANSYS analysis software, which verifies the reliability of the whole system in the national standard 7- degree seismic intensity, and the results of the research provide a safe basis for the actual operation of the project. [pdf]
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