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Mismatching effects are major drawbacks existing in today's photovoltaic (PV) solar systems. To improve power system stability and energy conversion efficiency, distributed maximum power point tracking (DMPPT) techniques are developed. In this paper, single-stage DMPPT power management DC-AC inverter architecture (SS-AC-DMPPT) is presented and verified by Matlab®/Simulink® simulation model results...
Data throughput demands of fourth generation telecommunication systems have acted as a stimulus for a paradigm shift of the cell tower structure. This paradigm shift has included the implementation of the fiber-to-the-antenna (FTTA) architecture. FTTA architecture implementation has enabled lower power requirements, distributed antenna sites and a smaller base station footprint when compared to conventional...
Sodium Nickel Chloride Batteries for stationary applications have demonstrated to be effectively used for high energy density deployment in telecom facilities. This paper reviews the characteristics of Sodium-Chloride batteries and describes the installations in telecom facilities.
A new architecture using multi-level lows voltage DC/DC cells with super high power density is presented in this paper. The new class inverter topology is based on cascaded low-voltage DC/DC converter cells that will benefit from the hyper-competitive DC/DC computer/telecom converter global supply chain and manufacturing infrastructures. Furthermore, the switching frequency of each DC/DC cell can...
This paper describes an algorithm for managing a system consisting of “dissimilar” battery packs in parallel without multiple DC/DC converters interfacing each battery pack to the load. The power loss from the circulating current can be avoided so that the operating time of the parallel battery system is prolonged. The proposed algorithm is able to recognize the load demand and determine the number...
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