The Application of BPL in AMI System and EV Charging Communication

The Application of BPL in AMI

System and EV Charging

Communication Test

Qingyang Liu PLC Application Technology Laboratory of SGCC

(China Gridcom Co.,Ltd.) qyliu@sgcc.com.cn

Contents

1 Introduction of Gridcom and PLC Laboratory

2

3

Communication Performance Test between

Electric Vehicle and Charging Facilities

An Integrated Solution for AMI system

- 2

Gridcom is mainly focus on the construction of smart grid and

provide total solution for the communication of smart power

consumption.

Advanced Metering Infrastructure products and total solutions

EV smart charging service operation management system

TD-LTE of 230MHz wireless products and solutions

Smart power consumption communication system operation

and maintenance.

China Gridcom Co.,Ltd (Gridcom) was established in 2003 and is

the wholly-owned subsidiary of State Grid Corporation Of

China(SGCC).

Shenzhen ( PLC Lab)

Beijing

Shanghai

Introduction of Gridcom

- 3

- 4

National High-Tech Enterprise

ISO9001:2008 Certification

A number of national patents and over ten software copyrights

PLC Application Technology Laboratory of SGCC

Introduction of Gridcom

- 5

Development Process of PLC Products

- 6

Gridcom has

successfully developed

EV smart charging

service operation

management system.

• Headquarter level

• Provincial level

• Station level

Currently, the

system has been

successfully used in

Shanghai, Jiangsu.

EV Smart Charging Service Operation Management System

省级运营管理系统

消费终端

车载终端

智能电卡

……

充电机

总部运营管理系统

……

……

接口服务器集群

……

密码机A 密码机B

营业厅GPRS / CDMA

3G / 4G

文件服务器

负载均衡A 负载均衡B

天文钟

应用服务器集群

…… 密码机A 密码机B

文件服务器

天文钟

历史数据库服务器B

历史数据库服务器A

数据库服务器A

数据库 服务器B

数据库 服务器A

历史数据库 服务器A

防火墙

总部容灾系统

……

数据库服务器A

数据库服务器B

车辆里程信息

站级管理 售卡充值

工作站通信管理机

充电桩 充电桩

……

售卡充值工作站

售卡充值工作站

……

磁盘阵列

磁盘阵列

视频监控

应用服务器集群

堆垛机

数据库服务器

营销业务应用(95598)防火墙

磁盘阵列

防火墙

视频服务器

应用服务器集群

内网前置服务器集群

数据库服务器B

计算服务器A

计算服务器B

历史数据库 服务器B

计算服务器B 计算服务器A

安全接入平台

The PLC Application Technology Laboratory of SGCC is the first

specialized laboratory that takes PLC technology as its main research,

and is mainly engaged in the research, experiment, simulation, test and

verification of product and technology with regard to the key

technologies which are involved in new technology, new application and

new equipment of PLC.

PLC Application Technology Laboratory

- 7

- 8

PLC Application Technology Laboratory

Communication performance testing system for PLC

Simulating PLC network

EMC Testing system

Safety and Environmental testing system

Mechanical performance testing system

Contents

1 Introduction of Gridcom and PLC Laboratory

2

3

Communication Performance Test between

Electric Vehicle and Charging Facilities

An Integrated Solution for AMI system

- 9

The AMI is a major component of smart grid

deployment, providing real-time data resources and

technological support for the characteristics of power

grid such as informatization, automation and interaction.

A complete set of solution has been formed with

regard to AMI system by independent R&D of Gridcom.

AMI products based on BPL(Concentrator, Collector, Repeater…)

TD-LTE of 230MHz wireless products and solutions

AMI Master Station software

- 10

Advanced Metering Infrastructure

- 11

AMI solution

Typical AMI topology:

Communication terminal

Concentrator

Collector

Meter

Communication channel

Optical fiber

GPRS/CDMA/3G

Private Wireless System

Master station

Management software

Data base server

Application server

Front end server

Master station

- 12

Products have been widely applied in AMI

applications in provincial power companies, such as

Hubei, Anhui, Qinghai, Ningxia, Liaoning and Gansu.

From the end of 2009 till now, the covering of electric

power users have exceeded 720,000.

AMI solution- Communication Terminal

Terminal products:

- 13

AMI-Local Network Using BPL

- 14

AMI – Field Deployment

- 15

AMI – Field Deployment

- 16

Statistic data of AMI in Anhui

Name of

transformers

No. of

transformers

No. of

Households

No. of success

collection

Households

Success rate of

collection No. of collectors

XB10454JinFeng

YiJu#12 0201055157 263 263 100.00% 22

XB10083HanLin

HuaFu6# 1000100171 235 235 100.00% 18

XB10452JinFeng

YiJu#10 0201055139 274 274 100.00% 21

XB10251WangBe

iXiaoQu#5 0201013849 261 261 100.00% 20

XB10250WangBe

iXiaoQu#4 0201013848 235 235 100.00% 19

XB10252WangBe

iXiaoQu#6 0201013850 287 287 100.00% 22

Statistic Data of AMI Deployment

- 17 - 17

TD-LTE 230MHz electric

wireless broadband

communication system

can meet the real-time

and high reliable

communications demand

of distribution and

consumption sides in

smart grid, such as power

consumption data

acquisition, distribution

automation, video

transmission and

emergency

communications.

TD-LTE Wireless Broadband Communication System

- 18

Products:

Base Band Unit Radiofrequency Remote Unit

TD-LTE230MHz Electric Wireless

Broadband Communication Terminal

TD-LTE230MHz Electric Wireless

Broadband Communication Module

TD-LTE Wireless Broadband Communication System

- 19

AMI Master Station software

Master station of AMI which is developed by

Gridcom has been implemented and deployed in some

provinces such as Ningxia and Gansu, and achieved

good results.

- 20

AMI Master Station software

Contents

1 Introduction of Gridcom and PLC Laboratory

2

3 Communication Performance Test between

Electric Vehicle and Charging Facilities

An Integrated Solution for AMI system

- 21

- 22

PLC Application in EV Charging System

- 23

Verify PLC’S

feasibility in

the

environment

of China's

electric power.

Evaluate the

performance

of PLC

technology

between EV

and charging

facilities.

Communication Performance Test

- 24

• Artificial power

network ( Filter

and LISN)

• 5 Charging piles

• 5 Chargers(2 types

from 2 vendors)

• Simulating load

• Network analyzer

• Spectrum analyzer

• Oscillograph

• PCs

• EUT (5 types of

PLC modem from

5 vendors)

Test Environment Setup

- 25

No. Device No. Communication

standards

Communication

technology

1 Device 1 G3-PLC Narrowband

2 Device 2 G3-PLC Narrowband

3 Device 3 TDS-OFDM Narrowband

4 Device 4 Homeplug AV Broadband

5 Device 5 UPA(G.Hn) Broadband

Communication cable: Powerline, Control lines(CP-PE)

Charger: Two types of charger based on different technology

Connection interface for AC Charging:

The EUT:

Test Background

- 26

a) Chargers no load

b) Charger I full load, other chargers no load

c) Charger II full load, other chargers no load

d) 2 Chargers full load, other chargers no load

Background noise

test of power line

Communication

performance test

of power line

Background noise

test of

control line

Communication

performance test

of control line

a) Charging pile side：Charger I no/half/full load

b) Charging pile side ：Charger II no/half/full load

c) Load side： Charger I no/half/full load

d) Load side： Charger II no/half/full load

a) Charging pile side：Charger I no/half/full load

b) Charging pile side ：Charger II no/half/full load

c) Load side： Charger I no/half/full load

d) Load side： Charger II no/half/full load

Communication Performance Test Items

a) Chargers no load

b) Charger I full load, other chargers no load

c) Charger II full load, other chargers no load

d) 2 Chargers full load, other chargers no load

- 27

Frequency Spectrum Measurement

Charging pile side ，0-600KHz

No Load

Charging pile side ，0-40MHz

No Load

Load side ，0-600KHz

No Load

Load side ，0-40MHz

No Load

Charging pile side ，0-600KHz

Full Load

Charging pile side ，0-40MHz

Full Load

- 28

Narrowband technology, charging pile side send data - load side receive data

Load conditions Device No. Communication

rate

Communication

success rate error rate

Packet loss

rate

Charger I

Half load

Device 1 4.205Kbps 86.7% 9.4% 3.9%

Device 2 22.4Kbps 90.38% 0 9.62%

Device 3 10Kbps 42% 20.4% 37.6%

Charger I

Full load

Device 1 4.205Kbps 18.28% 38.2% 43.52%

Device 2 22.4Kbps 89.82% 10.04% 0.14%

Device 3 10Kbps 25.4% 43.02% 31.58%

Charger II

Half load

Device 1 4.205Kbps 100% 0 0

Device 2 22.4Kbps 100% 0 0

Device 3 10Kbps 99.5% 0.3% 0．2%

Charger II

Full load

Device 1 4.205Kbps 87% 0 13%

Device 2 22.4Kbps 100% 0 0

Device 3 10Kbps 93.9% 0.7% 5.4%

Test Result-Power Cable

- 29

Load conditions Device No. Communicatio

n rate

Communicatio

n success rate error rate

Packet loss

rate

Charger I

Half load

Device 1 4.205Kbps 99.9% 0 0.1%

Device 2 22.4Kbps 100% 0 0

Device 3 10Kbps 99.98% 0 0.02%

Charger I

Full load

Device 1 4.205Kbps 97.94% 0.06% 2%

Device 2 22.4Kbps 100% 0 0

Device 3 10Kbps 97.94% 0.06% 2%

Charger II

Half load

Device 1 4.205Kbps 100% 0 0

Device 2 22.4Kbps 100% 0 0

Device 3 10Kbps 100% 0 0

Charger II

Full load

Device 1 4.205Kbps 99.8% 0.2% 0

Device 2 22.4Kbps 100% 0 0

Device 3 10Kbps 100% 0 0

Narrowband technology, load side send data - charging pile side receive data

Test Result-Power Cable

- 30

Load conditions Device No. Communicatio

n rate

Communication s

uccess rate error rate

Packet loss

rate

Charger I

Half load

Device 4 25Mbps 100% 0 0

Device 5 30 Mbps 100% 0 0

Charger I

Full load

Device 4 25Mbps 100% 0 0

Device 5 30 Mbps 100% 0 0

Charger II

Half load

Device 4 20Mbps 100% 0 0

Device 5 20 Mbps 100% 0 0

Charger II

Full load

Device 4 25Mbps 100% 0 0

Device 5 15 Mbps 100% 0 0

Broadband technology, charging pile side send data - load side receive data

Test Result-Power Cable

- 31

Load conditions Device No. Communicatio

n rate

Communication

success rate error rate

Packet loss

rate

Charger I

Half load

Device 4 30 Mbps 100% 0 0

Device 5 15 Mbps 100% 0 0

Charger I

Full load

Device 4 30 Mbps 100% 0 0

Device 5 15 Mbps 100% 0 0

Charger II

Half load

Device 4 5 Mbps 100% 0 0

Device 5 10 Mbps 100% 0 0

Charger II

Full load

Device 4 5 Mbps 100% 0 0

Device 5 10 Mbps 100% 0 0

Broadband technology, load side send data - charging pile side receive data

Test Result-Power Cable

- 32

Load conditions Device No. Communication

rate

Communication

success rate error rate

Packet loss

rate

Charger I

Full load

Device 2 134Kbps 100% 0 0

Device 3 40Kbps 100% 0 0

Charger II

Full load

Device 2 134Kbps 100% 0 0

Device 3 40Kbps 100% 0 0

Load conditions Device No. Communication

rate

Communication

success rate error rate

Packet loss

rate

Charger I

Full load

Device 4 39Mbps 100% 0 0

Device 5 15 Mbps 100% 0 0

Charger II

Full load

Device 4 35Mbps 100% 0 0

Device 5 15 Mbps 100% 0 0

Narrowband

technology

Broadband

technology

Test Result-Control Cable

- 33

Conclusion

The transmission capacity of

BB PLC devices have more

advantages than the NB PLC

devices.

Equipment location, different

load current, chargers based on

different technologies will result

in the different channel

background noise. The

interference to the NB and BB

PLC is different.

The background noise of

power cable is higher

than the control cable.

Background noise of

Load side is higher

than charging pile side.

The noise generated by

different

charger is different.

Based on control cable

channel, both BB and

NB PLC have very good

communication

performance.

Based on power cable

channel, in the case of

heavy load, BB PLC has

better communication

stability than NB PLC.

Still the NB PLC can

afford the

communication between

EV and Charging

facilities.

Test Analysis and Conclusion

Thank you!