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Unrestricted | © Siemens 2021 | Smart Infrastructure Digital Grid Energy Automation | 2021-Jul-21

How to guarantee the continuity of power

supply through grid edge automationSIEMENS Minerals Week, 21 July

Unrestricted | © Siemens 2021 | Smart Infrastructure Digital Grid Energy Automation | 2021-Jul-21Unrestricted | © Siemens 2021 | Smart Infrastructure Digital Grid Energy Automation | 2021-Jul-21Unrestricted

Rodrigo Braga

Technical Sales Consultant

Global Business Development

SIEMENS AG

Smart Infrastructure / Digital Grid

Germany

E-mail [email protected]

Speaker


Industrial process:

How to protect and secure

power supply?


Challenges

• Protect critical loads from

power interruptions

• Avoid overload scenarios

• Reduce outage size and

duration

• Locate faults faster

• Reduce crew size to isolate and

restore


General Overview

HV

MV

NOP

Primary Distribution Network• Main Substaton MV

Secondary Distribution Network• Transformer Substation

• Mobile S/E

• Mining Electrical Loads

Transmission Network• GIS High Voltage SE

• Filter Harmonics

Mobile S/E

Electric Shovel 6,6kV

S/E Siemens

8DA10

23kV

Cable 23kV

6,9kV

3-8MVA

Electric Drill 6,6kV

220kV

Mining Loop

SVC

Filter Harmonics

0,4/3,45kV

Impulsion Water Pump &

Others critical process

0,5-2,5MVA

Mix Cables

and Lines

S/E Siemens

8DA10

6,9kV


Grid edge automation:

Main principle


Field level: Grid edge devicesDecentralized automation based on protection devices

• Jump differential (jDiff)

Current jump detection

Substation

A

OR

50/50N

Start fault isolation

Substation

B


OR

50/50N



OR

50/50N



OR

50/50N



OR

50/50N


Communication network

52

52

52

52

52

IEC 61850



Main application cases


Fault and outage managementAutomated switching for isolation

and service restoration


Field level: Grid edge devicesDecentralized automation based on protection devices

Time zero

Standard Comm.

Protocol *

NOP

Less than 300 ms

Fault locationFault isolationService restoration

* IEC 61850 - GOOSE

Grid In-feed


Load ManagementAutomated switching for dynamic

reconfiguration


Field level: Grid edge devices

Decentralized automation based on protection devices

Less load More load

Controller

NOP

Controller

NOP

Controller

NOP



System architecture benefits


Grid edge automation

Decision and control hierarchy

Distribution

Automation Control

Hierarchy

Decision Level Decision Parameters Target Configurations

Control Center Distribution Grid

Supervision and

Delivery Optimization

Substation Tie Capacity, Load and

Voltage Analysis, Actual Feeder

Connectivity, Energization, Fault

Total Distribution Grid,

Substations, Feeders, Devices and

All Interconnections

Regional Controller Interconnected

Substation and Feeder

Circuits

Substation Tie Capacity, Load and

Voltage Analysis, Actual Feeder

Connectivity, Energization, Fault

Medium/High Load

Substations/Feeders with

Significant Substation

Interconnections

Secondary

Substation

Interconnected Feeder

Circuits

Load and Voltage Analysis, Actual

Feeder Connectivity, Energization,

Fault

Medium/High Load Feeders with

Significant Interconnections

Super Device

(Group of Devices)

Feeder Circuit Implied Feeder Connectivity,

Energization, Fault

Low Load Radial Feeders with

Few Interconnections

Individual Device Feeder Circuit Section Energization, Fault Low Load Radial Feeders with

Few Interconnections

Decision and Control Hierarchy

Incre

asin

g D

ecis

ion C

om

ple

xity

Decre

asin

g D

ecis

ion T

ime



Comm. overview


Grid edge automationTypical communication architecture (WiMax example)

WiMax

Transceiver

NLOSAntenna

EthernetSwitch

PoE

Unit

7SC80Controller

Breaker 1

Subscriber

WiMax

Unit 1

7SC80Controller

PoE

Recloser 1

Subscriber

WiMax

Unit 5

7SC80Controller

PoE

Recloser 4

7SC80Controller

Base Station 1

Transceiver

NLOSAntenna

Ethernet

Switch

PoE

Unit

SwitchMode

Regional Controller

SICAM PAS CC HMI

Connections Legend:

IEC 61850

WiMax Ethernet

Control Cable

Coaxial RF Cable

WiMax

Base Station 2

Breaker 2

Optional

Local HMI

Cat 5 Ethernet

IEC 61850

Subscriber

WiMax

Unit 4

7SC80Controller

PoE

Recloser 3

Subscriber

WiMax

Unit 2

7SC80Controller

PoE

Recloser 2

P01 P06P02 P03 P04 P05

Subscriber

WiMax

Unit 3

Subscriber

WiMax

Unit 6

~ ~

PoE PoE

IEC 61850

Fiber Ethernet


Grid edge automationComm. - Project example

• Preliminary planning was needed due to difficult terrain

• Telecommunication pole 70m hight - to achieve direct optical visibilit

• Microwave radio equipment, frequency range 5.4 GHz

• Point-to-point and point-to-multipoint links

• Testing on all location to ensure that links have enough:

• Troughput 25 Mbit/s

• High reliability (≥99.99%)

• Low latency

• Antennas are located at 8m height on poles


Summary

Grid edge devices

• Secure and efficient network operation

Benefits

• Prevent power outages

• Protection of primary equipment from damage (e.g. generators, switchgear,

transformers, cables)

• Decentralized automation for mission-critical operation

• Faster grid operation / reconfiguration

• Avoid overload scenarios


Published by Siemens 2021

Smart Infrastructure / Digital Grid

Humboldtstr. 59

90459 Nuremberg

Germany

For the U.S. published by

Siemens Industry Inc.

100 Technology Drive

Alpharetta, GA 30005

United States

© Siemens 2020

Subject to changes and errors. The information given in this document/video only contains general descriptions and/or

performance features which may not always specifically reflect those described, or which may undergo modification in the

course of further development of the products. The requested performance features are binding only when they are expressly

agreed upon in the concluded contract.

All product designations may be trademarks or other rights of Siemens, its affiliated companies or other companies whose use

by third parties for their own purposes could violate the rights of the respective owner.

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https://new.siemens.com/global/en/products/energy/energy-automation-and-smart-grid/distribution-automation/fault-localization.html

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