HYBRID VS. OFF GRID SYSTEMS

Grid adaptability of solar inverters

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. [pdf]

Safety requirements for grid connection of energy storage power stations

This document specifies the general requirements for connecting electrochemical energy storage station to the power grid and the technical requirements of power control, primary frequency regulation, inertia response, fault ride-through, operational adaptability, power quality, relay protection and automatic safety device, dispatching automation and communication, simulation models and for test and assessment of connecting to the power grid. [pdf]

Operation principle of wind-solar hybrid communication base station

Wind-solar hybrid power system based on the wind energy and solar energy is an ideal and clean solution for the power supply of communication base station，especially for those located at remote areas such as islands.The hybrid power system provides reliable power supply while reducing the initial investment，the maintenance costs and carbon emission.A practical and reliable designing scheme of wind-solar hybrid power technical solution was presented and analyzed for a communication base station in a remote island. [pdf]

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