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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Test System for Charging Communication of Use Cases based on Different Standards

Patel, Jinal Vishnubhai 25 January 2022 (has links)
To charge an all types of Electric Vehicles (EVs) is the most primary part of the electrical vehicle industry. Nowadays charging communication between vehicle and charging station becoming more and more popular. Automotive industries are trying to charge vehicles in minimal time and also the secured one. In the charging communication scenario, current is flowing through the charging station to the EV through electric line and normally communication between them takes place with the help of Controller Area Network (CAN), Wi-Fi and Powerline Communication (PLC) etc. There are two types of charging communication available in the current industry: High level and Low level communication for Alternating Current (AC) and Direct Current (DC). Low Level Communication (LLC) uses only Pulse Width Modulation (PWM) signals to transmit data, which is analog signals. On the other hand, High level Communication (HLC) provides digital and IP network based communication. These both types also support many different standards for communication. For example, ISO 15118, IEC 61851, DIN 70121 and many more. These standards have the message sequences for the flow of charging and also their implementation. The goal of this thesis is the development of low cost EVSE test system, which has the PLC technology with up to 10 Mbps data rate and two different standards for charging communication with HLC. This thesis proposes an implementation between a communication controller or SECC of Electric Vehicle Supply Equipment (EVSE) side and Signal Level Attenuation Characterization (SLAC) in PLC modem. SLAC functionality helps to overcome the problem of crosstalk while charging. In this work, there will be a test system with SECC and PWM generator, some resistors to identify proper lock mechanism between charging cable and vehicle inlet, the ISO 15118 and IEC 61851 for PWM signals. Implementation of SECC will be in JAVA language and each message executed in XML script language. Our examination shows this approach very remarkable low cost AC based test system with digital communication system, which can help to test direct or virtual EV or HiL system.

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