Universal PLC SoC Platform for

Smart Metering and Smart Grids

Dr.-Ing. Bernhard Rauscher

VP Applications EMEA Region

Smart Grid Applications Scenario

2

Energy monitoring systems

Command and control

Home & Building Automation

Electric Vehicle charging

Street Lighting Control

Smart Energy Distribution

Narrowband PLC is one of the most suitable

communication technology for smart grid applications, but

silicon implementation has to effectively address some

major challenges….

Smart metering

2

• B-FSK / n-PSK modulation

• +50 Munit deployments in Italy, Spain, Romania + WW pilots

• Evolving specifications driven by Meters and More Association

Narrowband PLC first challenge:

protocols fragmentation 3

• OFDM modulation

• +6 Munit deployments in Spain, Portugal, Poland + WW pilots

• Evolving specifications driven by PRIME Alliance

• FSK,PSK,OFDM, SS, …

• x - Millions units installed in China, Africa, Russia, …..

• New technologies/protocols coming...

OTHERS,

PROPRIETARY

CLC/prTS 50568-4

ITU-T G.9904

• OFDM modulation

• G3-LINKY&SOGRID programs started by ERDF in France + WW pilots

• Evolving specifications driven by G3 Alliance ITU-T G.9903

• OFDM modulation

• WW pilots start , certification in development (HP Netricity)

• Evolving specifications driven by IEEE 1901.2 WG 1901.2

• S-FSK modulation

• G1-LINKY program by ERDF in France (300 kunit installed) + WW pilots IEC61334-5-1

Narrowband PLC second challenge:

regulatory fragmentation 4

• PLC Frequency bands in Europe (CENELEC) • Band A (3 kHz – 95 kHz) dedicated to electricity suppliers

• Band B (95kHz-125 kHz) and Band D (140kHz – 148.5kHz) general end user apps

• Band C (125kHz – 140kHz) end user apps regulated by CSMA

• FCC (non-CENELEC)

• PLC Frequency bands in USA (FCC) • 10kHz – 490kHz

• PLC Frequency bands in Japan (ARIB) • 10kHz – 450kHz

• PLC Frequency bands in CHINA • 3kHz – 500kHz

CHINA

FCC

ARIB

CENENEC

A B C D

• Evolving regulations

• WW trend to exploit full

500kHz band

5

Application

MCU

Mains Sensor

Metrology

AFE

Typical Smart Grid node chips-set

•Power Line Modem IC • PLC SoC or DSP

• Possible dedicated MCU for upper layers FW management

•PLC Analog Front End

• RX, TX AFE

• Power Line Driver

•Metrology AFE • High accuracy Analog Front-End

• Possible dedicated MCU for metrology management

•Application MCU

• Application management

PLC

AFE

PLC

Modem

Display Local

Port Com

EEPROM

FLASH

Narrowband PLC third challenge:

silicon integration

• Need for system higher integration, lower cost, smaller size…

6

Application

MCU

Mains Sensor

Metrology

AFE

Display Local

Port Com

STCOMET

Meter-on-Chip

• Full system in a single chip

• Unique HW

• Multiple PLC standards by SW

• full 500kHz band support

ST answer to narrowband PLC challenges:

“STCOMET” Platform

PLC

AFE

PLC

Modem

7 STCOMET Platform Highlights

Power Line Modem • Low power, high performing, Re-programmable DSP engine

• Multiple PLC standards: G3, PRIME, G1, P1901.2, Meters & More,…

• Integrated RX and Tx PLC Analog Front-End

• Integrated low distortion, Smart Power Line Driver

• Compliant with CENELEC, FCC, ARIB regulations

• 500kz extended band capabilities

Application Engine • Cortex-M4 Core @ 96MHz, FPU

• 1MB Flash & 128kB RAM embedded memories

• State of the art RTC and Encryption engines

• Full set of peripherals

Communication blocks: • 4 USART, 5 SPI, 2 I2C, 2 CAN

• 86 multiplexed GPIOs

Embedded Security • AES 128/192/256, Advanced mode (GCM, CCM, ECB, GMAC…)

• True random generation, ISO7816 compatible USART

Embedded Energy Metering • Exceed Class 0.2 Meter requirements

• 3 Independent 24-bit SD converters (Vp, Ip, In)

• 0.1% accuracy over 1:5000 range

• 3.6kHz bandwidth, up to 72th (60th) harmonic content @ 50Hz (60Hz)

7

STCOMET10 fully mature since May 8th 2015

STCOMET 3ph Solution

• For sampling synchronization, COMET

can deliver the dedicated 16MHz clock

signal to STPM34

• Internal MCU (Cortex-M4) computes

all the data (coming from the DSPs) to

provide the total measured energy

• Note : Raw data can be used to

implement proprietary algorithms in

the MCU (DSPs by-passed).

3ph approach with isolated current sensing (CT/RoCoil)

N L1 L2 L3

ΣΔ

ΣΔ DSP

V2

SPI /

UART ΣΔ A C2

L3 Current

STPM34

L2 Voltage

L2 Current

ΣΔ V1 L3 Voltage

N L1 L2 L3

N Current

L1 Current

L1 Voltage

SPI /

UART

C1

GPIO

C2 Cortex-M4

PLC

COMET

A

ΣΔ

ΣΔ

ΣΔ A

A

C1

V

DSP

LCD

8

M&M

LL

STCOMET FW Stacks Flexibility

• Real-Time Firmware

• Coupled with PLC HW features

• Application: • Metering

management

• Non Real-Time

Firmware • Data handling

• Network

management

• Priority to

Application

(Legal) tasks

PRIME PHY

PRIME MAC

CL

IPv6

CL

4-32

TCP/UDP

Wrapper Layer IEC 62056-47

COSEM App. Layer (IEC62056-53)

COSEM Metering Object model

G3

PHY

G3

MAC

6LowPAN

IPv6 IPv4

CL

IPv4

Application

G1

PHY

G1

MAC

IEC

61334-4-32

LLC

1901.2

PHY

1901.2

MAC

M&M

PHY

M&M

CL

M&M

Data Model

M&M

App. Layer

Other

Physical

Other

Data

Link

Network

Transp.

High

Layers

9

Cort

ex M

4

PLC

Modem

• the STCOMET protocols can be

upgraded remotely through FW

upgrade procedure.

• This way, the Utility can switch

from one protocol to another one

during meter life time, or during

pilots

STCOMET-based Meter on-field update 10

STCOMET

PRIME SW

G3 SW

G1 SW

Meters&More

. . .

Enabled by bootloader, MPU, freeRTOS, autonomous metrology

STCOMET ready for G3

• STCOMET first platform certified in LAN in October 2014

• STCOMET CENELEC G3

• October 2014: PAN device certified

• Feb 2015: PAN Coordinator certified

• STCOMET FCC G3

• October 2015: PAN device certified (Differential mode).

• December 2015: PAN device certified (Coherent mode)

11

11

STCOMET Ready for PRIME

• PRIME 1.3.6 CENELEC band certified • PHY, MAC and CL certification: October 2014

• Fully compatible and interoperable with previous STarGRID

ST7590 implementation

• PRIME 1.4 FCC band • Interoperability tests passed

• Service and base nodes

• PRIME 1.4 Transitory mode certification: October 2015

• PRIME 1.4 full certification following PRIME Alliance tools

avaialbility

12

Sep-15 © 2014 PRIME Alliance AISBL. All Rights Reserved. Proprietary & Confidential 13

Recent Updates + Version 1.4

Expanded Frequency

Expanded Frequency PRIME bands span from CENELEC A band (<95kHz) to FCC and ARIB spectrums (<500 kHz)

with data rate up to 980kbps

Data Security for successful roll-out of large scale PLC-based networks. State-of-the-art encryption and authentication at MAC and

APP Layer by new Security Profile Security

IPv6 Support IPv4 and IEC 61334-4 -32 support, IPv6 support as a convergence layer over

PRIME MAC and PHY layers.

Backwards Compatibility

Fully backwards compatible with the 6+ million installed meters, corresponding Data Concentrators and Gateways with PRIME

Specifications 1.3.6.

Increased Robustness

New PHY PDU defined, adding increased robustness without additional complexity or cost implication

STCOMET within SOGRID

• STCOMET is being used in a pilot in Toulouse (South of France ) to

build e-meter, concentrator and coordinator

• DATA concentrator integrates two modems: one for FCC band and

one for CENELC-A band

15

Concentrator Cen-A and FCC

E-meter Coordinator HV A

SA SA SA

PLC CENELEC-A PLC FCC MV – 20 000V LV – 230V ERDF backbone

15

SOGRID project with STCOMET see www.metering.com Sept. 8th

• Integrating G3-PLC communication and sensing in end-to-end backbone

• Increased granularity in grid observability with Smart Sensing (LV/MV)

• Full real time supervision and grid management (LV/MV)

• Fault detection and failure prediction

• Supervision and management of G3-PLC communication network in both CENELEC

and FCC bands

• Secure and autonomous grid management

• Low latency

• Integrated economical project

• Field experiment schedule

• Toulouse, France

• 1 000 locations

• November 2015 – June 2016

16

10 SOGRID Partners: ST, Sagemcom, L+G, Nexans, Capgemini, LAN, Trialog,..

Funded by the French Agency for Environment + Energy Management

SOGRID Field test on MV using G3-FCC on

STCOMET

• Characterization of the link (underground cables)

in different location has been done. We observed

an attenuation of 30 to 40dB of the PLM signal with

a low and flat noise floor (max 60 dBµV)

• PHY tests shows very good results using different

G3 modulations (DQPSK, D8PSK)

• Endurance tests have also been done at higher

level (UDP) and we noticed that the quality of the

MV network is stable in time

17

LQI: Link quality indicator

STCOMET for Data Concentrator 18

• STCOMET used as PLC

modem

• PHY Layer

• MAC Layer

• Adaptation layer

• Higher layers if needed

• Extension of the

embedded resources

• External Parallel RAM

• External Parallel

FLASH

• External Serial

FLASH/EEPROM

18

STCOMET complete ecosystem ready for final products design and full life support 19

Design Resources • Datasheet

• User Manuals

• Reference Manual

• Application Notes

• HW

• Boot

• Metrology

PLC Protocols FW Libraries • G1-S-FSK, IEC 61334-5-1 available

• G3-PLC (CENELEC A ) available & certified

• PRIME 1.3.6 (CENELEC A) available & certified

• G3-PLC (FCC/ARIB) available, ready for certification

• PRIME 1.4 transitory mode available, ready for certification

• IEEE 1901.2 (FCC) available

SW Integration Support • IAR/ KEIL toolchain

• Peripherals Drivers

• Metrology management SW

• Memory Protection Unit Management

• Legal separation example

• Remote FW Upgrade example

• Free RTOS integration

• SW/FW Documentation

• Network Emulator Test bench

Mature product

Evaluation boards • STCOMET Development kit deliverable:

• Schematics

• Gerber files (4-Layer PCB)

• Bill of Material (BOM)

• Firmware / Software / GUI

• EN50065 EMC certified

• PRIME & G3 certified

19

EVLKSTCOMET10-1 and GUIs

20

• Full STCOMET Development kit • Full testability of each function of COMET device

• Supports today G1, G3, PRIME for customer

evaluation, future standards implementation ongoing

• IAR/KEIL Toolchains and debuggers • Simple connection through USB connector

• Flash/Debug/Run PLC and Metrology SW

• GUI for PLC testing • PHY/MAC/ADP

• Automatic packets sending with PER calculation

• GUI for Metrology testing • Voltage/current/frequency/Sag & Swell display

• Power/Energy calculations

• EN50065 full compliance certified by IMQ in October 2014

20

STCOM/STCOMET Platform Roadmap 21

M&M Profile 1

M&M Profile 2

…

PRIME v.1.3.6

CENELEC

PRIME v.1.4

FCC

…

G3 CENELEC A

G3 Coherent

Modes

G3 FCC Band

G3 ARIB Band

…

G1 S-FSK

Country specific

Customers specific

…

IEEE 1901.2 STCOMET05

STCOM10

STCOM05

1MB Flash

512KB Flash

1MB Flash

No Metrology

512KB Flash

No Metrology …

STCOMET10

STCOMET – breakthrough universal PLC

smart meter platform • STCOMET Integration breakthrough

• Full Smart meter / smart grid PLC node in a single chip

• Unique HW for multiple PLC standards

• Unique HW for multiple applications (meters, concentrators, communication modules...)

• STCOMET multi-protocols flexibility breakthrough

• Full SW-based (DSP) PLC protocol stacks (PHY, MAC, CL,..)

• Multi-protocols support: PRIME, IEEE1901.2, G3, G1, Meters&More,….

• On field completely FW upgradable

• STCOMET multi-band breakthrough

• 500kHz full band support

• Unique HW to support today and future regulations (CENELEC, ARIB, FCC,…)

• STCOMET Industrialization breakthrough

• Ready for industrial massive deployments

• Selected already by major industrial players for today and future smart grid programs 22

22

23

Thank you!

Visit us on:

www.st.com

www.st.com/powerline

www.st.com/metering