ELYTONE's PLC Solution for Charging EVs
The Interaction Between EV and EVSE
Power Line Communication (PLC) is a communication method in which power supply and data transfer take place at the same time on one cable strand. PLC also comes up in connection with terms such as “Industry 4.0“, “Internet of Things“ and “Smart Home“.
As well as the buzzwords, there is another subject of conversation going around at present in the automobile industry which may be less known but not less interesting. This involves the interaction between electric vehicles (EV), plug-in hybrids (PHEV) and the charging stations, known as the electric vehicle supply equipment (EVSE).
Find SamplesHomeplug Green Phy as Standard for PLC Data Transmission
Since 2014, ISO/IEC 15118-5 (preliminary standard DIN SPEC 70121) has set the regulatory framework for the intelligent AC and DC charging of EVs. According to these standards, HomePlug Green PHY™ (HPGP) is scheduled as the standard for the PLC data transfer during plug-in charging.
Charging EVs requires very power and at peak times this can cause particular challenges to the grid utilization. This makes it important for information to be passed via the charging cable to the network operator, which includes, among other things, the charging time wanted, the present charging status, possible roaming information, and so on.
ELYTONE's Coupling Transformers As the Optimum Solution
From ELYTONE we offer two special solutions for these coupling transformers. The link between EV and EVSE the transmission is achieved by each having a YT-61083-1 unit, while for further communication, between EVSE and grid load sensor/smart grid gateway, the YT-61082-1 of ELYTONE is the choice.
Because the charging stations fall into the "Consumer" category, there are particular standards which come into consideration. The item YT-61082-1 accords with IEC 60950, which relates to the safety of the user. Besides overvoltage class 3 (insulation voltage: 4kV @ 250Vrms) the transformer can also be used under conditions with a pollution degree up to category 2.
With communication by Control Pilot, operation is on the same potential. This imposes lesser demands on the YT-61083-1, but it also means excellent insertion loss behavior in the fundamental frequency range from 2MHz to 30MHz is a must (see diagram).
The AEC-Q200 Grade 1 certification for both items is already under way and will be completed.
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Your Contact Person
For more information please contact Sebastian Gebhart.
