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IEEE P2847
M00000460
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IEEE P2847 IEEE Approved Draft Standard for DC Power Transmission and Communication to DC Loads
standard by IEEE, 02/03/2022
Full Description
Scope
This standard defines Physical Layer and Medium Access Control specifications for power supply and communication (at 9,600 bps or lower) over power lines from a DC (Direct Current) Power Source (50V or less) to multiple DC loads (more than 10W and less than 2KW for each load and supply capacity more than 100W of one Power transmitter). Each receiver has its own physical address (4 bits or more) and is connected to the transmitter through a pair of power lines (1km or less) in a 1: n multi drop bus or tree topology. The transmitter transmits the DC Power and the electric signals corresponding to the communication packets including the control command/data for controlling the DC loads and the target address through the power line by electrically changing the voltage of the wires. Each receiver supplies power to the DC load with the transmitted and voltage-flattened DC power. Each receiver decodes the control command/data and address from electric signals on the power line and uses them for the connected DC load control if the addresses match. The standard considers compliance to Electro Magnetic Compatibility (EMC) regulations.Purpose
The purpose of this standard is to define how to supply power and transmit a control command or data through power line to the DC loads such as LED Lightings, DC motor, DC actuator, battery control device, DC home electronic appliances from DC power source such as AC (Alternating Current) to DC power conversion device, battery, UPS (Uninterruptible Power Supply), ESS (Energy Storage System), or renewable DC power generation eevice such as a solar panel in an economical and reliable way.The new DC PLC (Power Line Communications) Technology defined in the standard provides the following advantages:* Enables an increased noise margin and S/N ratio, common mode noise rejection (to use the line DC voltage totally as signal range)* Lowers the cost of communication solutions (by excluding the blocking filters essential to AC PLC and by adopting simple circuits)* Lowers the maintenance cost of LED lightings or DC loads by eliminating electrolytic condensers installed on the ceiling for AC to DC conversion.* Avoid efficiency problems due to the double conversions of DC->AC->DC in the power supply process from renewable Energy Generation System to end loads.Abstract
New IEEE Standard - Active - Draft.This standard defines physical layer and data link layer specifications for power supply and communication over power lines from a DC Power Source to multiple DC loads as specified in IEEE P2847(TM)/D4 2021. Each receiver has its own physical address and is connected to the transmitter through a pair of power lines in a multi-drop bus or tree topology. The transmitter sends the DC Power and the electric signals corresponding to the communication packets including the control command/data for controlling the DC loads and the target address through the power line by electrically changing the voltage of the wires. Each receiver supplies power to the DC loads with the transmitted and voltage-flattened DC power. Each receiver decodes the control command/data and address from electric signals on the power line and uses them for the connected DC loads control if the addresses match. The standard is in compliance with known Electro-Magnetic Compatibility (EMC) regulationsIn stock