
This research focuses on the discussion of PV grid-connected inverters under the complex distribution network environment, introduces in detail the domestic and international standards and requirements on grid-connected inverter grid adaptability, and then analyzes in depth the impacts of the access point voltage changes, access point frequency changes, and access point harmonic changes on the inverters.Can grid-connected PV inverters improve utility grid stability? [pdf]

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]

In the wireless communication system of large venues, the signal conflict of multiple base stations will seriously affect the communication quality, and the problem of signal conflict of multiple base stations can be solved from multiple dimensions, such as frequency planning, base station layout and parameter adjustment, application of technical means, optimization management and monitoring. [pdf]

The intelligent base station power consumption management system installs intelligent AC and DC monitoring equipment, wireless acquisition equipment and system management platforms in 5G macro stations and indoor subsites to complete shutdown operations during non-night hours. commercial, reduce consumption energy, reduce operating costs, and improve the real-time monitoring and protection function of the power supply line status of communication equipment. [pdf]

The assembly solution for container type energy storage system integrates the assembly line, the heavy load handling system and the warehousing system, and the process flow of assembly line includes container loading/unloading, material preassembly, power cable and electrical system assembly, loading PACK to rack & pre-tightening, PACK tightening, wire harness connection, Hipot test & labeling, weak current system debugging and PCS test. [pdf]
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