SL1040A-EMC Charging Discovery System EMC EV Test

Introduction

This data sheet describes the EMC optimized Charging Discovery System (CDS) for EV testing.

The EMC Series for EV Test is intended for use inside an anechoic chamber for immunity and emission tests (conducted or radiated) of electric vehicles, during AC or DC charging.

Due to the special EMC shielded design and built-in low-noise components, the emission of the CDS is reduced to a minimum level. This enables EMC testing of EVs under real charging conditions without undesired test environment interference. Furthermore, the EMC series of the CDS is immune to external electro-magnetic fields and can be placed close to the specimen during immunity tests (see section “EMC performance”).

For EVSE test, see separate data sheet “Scienlab Charging Discovery System - EMC series for EVSE test”.

The EMC variant is fully software compatible with the portable CDS. However, Keysight designed it for reliable charging emulation, without extended fault injection, required for conformance testing.

SL1040A-EMC Charging Discovery System EMC Series for EV Test

Keysight designed the shielded CDS variant to be used for EMC compliance and homologation tests. This item is the main module which can be extended by optional communication modules (see SL1040A-301, SL1040A-302, SL1040A-303).

Figure 2 below shows a three-dimensional view of the shielded housing. During operation the housing is permanently closed with a lid.

General Functions

• Reliable, interoperable emulation of the EVSE charging communication controller (SECC); verified by thousands of successful charging sessions with almost all available EV brands & models
• Easy configuration of charging protocol and operating point through Windows control software Charging Discover (see also corresponding data sheet) or optionally via customer automation software (using the CDS remote interface)
• Integrated PWM emulation for Control Pilot circuit of the EVSE signal generator with adjustable positive/negative amplitude, frequency and duty cycle
• Integrated emulation of the Proximity Pilot circuit
• Real-time capable control PC with high system performance and low dead times. Note: IPC is placed typically outside of the EMC chamber (see section “Real-time PC”)
• Portable shielded “galvanized metal” case with grounding contact springs
• Isolated interface to Real-time PC via Optical Data Converter (see section “Optical Data Converter”)
• Direct support of Scienlab/Keysight power sources and sinks

Standards and directives

CDS supports the following charging communication standards:

The basic functions include:

• AC charging mode according to IEC 61851-1 (PWM)
• AC charging mode according to SAE J1772 (PWM)
• AC charging mode according to GB/T 18487 (PWM)

The following are available when ordering communication modules:

• DC fast charging mode according to DIN SPEC 70121 & ISO 15118
• AC charging mode according to ISO 15118
• DC fast charging mode according to GB/T 27930
• DC fast charging mode according to CHAdeMO

EMC performance

• EMC optimized case for emission and immunity testing
• Immunity of CDS rated up to 200 V/m (30 Mhz to 1 Ghz)

A. Connection from power source to Connection panel:

• DC+ and DC- from “Dynamic DC Emulator” (located outside of the EMC chamber) through EMC. Often DC+ and DC- wires are installed underneath the EMC chamber. At Connection panel the cables are connected with LISN (Line Impedance Stabilization Networks) via HV plugs.

B. Connection from Connection panel to LISN:

• Unipolar DC+ and DC- connection between Lab specific connection panel and LISN (Line Impedance Stabilization Networks) terminals. Note: Cables and connectors are not included with this item.

C. Connection from CDS/LISN to EV charging adapter:

• DC+ and DC-: standard DC-cables from EV charging adapter
• Communication (CP, PP, CAN): via shielded bus system cables by Phoenix Contact

D. Connection to electric vehicle:

• Via EV charging adapter