3 p strategy sems 10-v4

Smart Energy Management Systemsand

presented by: Aidan MacDermott – (EASi UK Ltd) 3P-Strategy

12 April 2023 Slide: 2SEMS

3P-Strategy

Measuring Supervising Controlling Discovering

Demand management Data logging Cost centre management

PFC Harmonic Filter Dynamic PFC Active Filter (EMC Filter) (Over voltage

protection)


Power Quality According EN 50160

Supply voltage phenomenon Acceptable limits Monitoring Period

Acceptance Percentage

Slow voltage changes +10% / -10% Unom 1 Week 95%

Voltages Sags or Dips (<1min) 10 to 1000 times per year (under 85% of nominal)

1 Year 100%

Grid frequency 49,5 Hz to 50,5 Hz 47 Hz to 52 Hz

1 Week 95% 100%

Short interruptions (<3min) 10 to 100 times per year (under 1% of nominal) 1 Year 100%

Accidental, long interruptions (>3min)

10 to 50 times per year (under 1% of nominal) 1 year 100%

Transient over voltages < 6kV 100%

Voltage unbalance Uneg/Upos < 2% 1 Week 95%

Harmonic voltages THD < 8% (Total Harmonic Distortion)

1 Week 95%


3P-Strategy – An Integrated Complete Solution

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Benefits of Smart Energy Management Systems

Basic energy metering & reduction of energy cost

Power quality monitoring & PQ improvement

Demand management (reduction of peak loads)

Cost centre management, e.g. tenant sub-billing

Stable energy supply: e.g. auto alarms

Overall efficiency: Increasing utilization factor


Hardware Overview

UMG103 Class 0.5, w/o display, 25th harmonics, Modbus

UMG96L Digital vs. Analogue Panel Meters

UMG96 dito with 2 digital outputs

UMG96S Data Logging, RS 485/232 Modbus, Profibus, THD …

UMG503 LL 870 V, Data Logging, RS 485/232, Modbus, Profibus, THD

UMG505 LON, Digital I/O , Analogue Outputs, L-L 870 V

UMG507 Ethernet, Sags & Swells, Peak Load, Digital & Analogue I/O

UMG510/511 Ethernet, Power Quality Analyzer (EN50160, …)

UMG604 Ethernet, Power Analyzer

EM Series MID Approved

Visualization with HMI (touch panel)

UMG605 Ethernet, Power Analyzer, 53rd Harmonic, Emax,


SEMS is Not Only Hardware!


SEMS - A Complete Energy Management System


3 Ways to Visualise Results – 1. GridVis Software – 2. UMG 604 Homepage – 3. HMI - SCADA

HMI-Human Machine InterfaceValues of 1 – 31 devices

11 kV

T-3 1000kVA / T4 1000kVA

UMG 604E

UMG 604L UMG 103 UMG 96S

RS485 Modbus

RS232

Ethernet

400V

/ 5

0Hz


Topology View for Visualisation


Analysis Software


Visualisation via Webserver


Costing Tools via Excel Makro – 50 Standard


Dashboard via 3rd Party Software


Dashboard via 3rd Party Software


Typical Solution - 1

11 kV

T-3 1000kVA T-4 1000kVA

UMG 604E UMG 604E

... 32

11 kV

RS485 Modbus

RS485 Modbus

GridVis Software

EthernetEthernet Switch

Ethernet

UMG1031

UMG1032

UMG1033

UMG1034

UMG1031

UMG1032

UMG1033

UMG1034

400V / 50Hz

400V / 50Hz



11 kV

T-3 1000kVA T-4 1000kVA

UMG 604E UMG 604E

... 20

11 kV

RS485 Modbus

RS485 Modbus

GridVis Software


Ethernet

UMG 96S

1

UMG 96S

2

UMG 96S

3

UMG 96S

4

UMG 96S

4

UMG 96S

3

UMG 96S

2

UMG 96S

1

400V / 50Hz

400V / 50Hz



11 kV

T-3 1000kVA T-4 1000kVA

UMG 604E UMG 604E

... 32UMG 604L

1

UMG 604L

2

UMG 604L

3

UMG 604L

4

UMG 604L

1

UMG 604L

2

UMG 604L

3

UMG 604L

4

11 kV

RS485 Modbus

RS485 Modbus

GridVis Software


Ethernet

400V / 50Hz

400V / 50Hz


Application Note – Actual Situation

German Car Manufacturing Plant, 250,000 units p.a.

Excessive VSD failures on LV and MV

Production loss

Strain on Maintenance Systems

€300,000 p.a. costs

3 Substations, 86 Transformer and DBs

Site Analysis undertaken with Fluke 1760 Topas

Root cause was not found, some minor issues were


Application Note - Target

• Janitza UMGs already on site

• Decision made to implement full UMG installation

• Management approval required

• Spend of max €250,000 on a SEMS authorised

• Improve Supply reliability and quality (PQM)

• Energy efficiency (reduction of electricity cost)


Application Note – Solution – Considerations

3 topics to be considered for such a (SEMS):

• Correct Selection of Power Analysers

• Communication Network

• IT – Environment


Application Note – Solution – Power Analysers

Selection of Power Analyzers:Designing a SEMS requires first of all the selection of the measurement points. Typically these are:

• PCC – Point of common coupling (connection to utility Co)• Main feeders from supply transformers• UPS systems• Stand by emergency generators• Large HV loads (e.g. large compressors)• Risky loads (e.g. continued processes)• Loads with high contribution to power quality pollution• Heavily loaded or critical grid points• …


Application - Hardware Selection

A multilevel, integrated solution with high-end Power Quality Monitoring devices

UMG 510 at the substations and PCC

UMG 507 & 604 at Transformers and Main Feeders

UMG 103 & 96S at sub feeder and critical loads12 pieces UMG 51082 pieces UMG 50750 pieces UMG 604192 pieces UMG 96S76 pieces UMG 103


Application - Communication / field bus:

Use of existing Ethernet

Additional interfaces (e.g. RS485), integration

Modbus gateway on UMG 507 & 604

UMG 604E Master slave, pickup existing units


Application – Solutions – IT Environment

• mySQL data base• GridVis software

• Managing power analyzers• Data base management• Topology view (overview at a glance)• Program measuring devices• Real time display of measured values• Auto download of measured data to data base

• Historic display of measured values• Create load profiles• Event and transient browser• Programming of customer-specific applications, e.g. peak load

management• Threshold and auto alarm• Firmware update of measuring devices• Multiple client accesses (facility, purchase…)• Excel macro solution for reporting & visualizing• GridVis reporting tools• OPC server for data exchange with PLC and BMS systems


Application - Findings

High Flicker Levels

High Harmonic Distortion

High Demand Charges

High dV/dt – values due to PWM – on compressors

Energy Waste

Overloading of some Grid points

SEMS supports root cause analysis


Application – Remedial Measures

Dynamic PFC

Passive and Active harmonic filters

dV/dt –filter

Demand Management system – E Max

Energy Efficiency, awareness, control etc


Application – Energy Efficiency

• Usage of motors with higher efficiency class

• Usage of modern drives technology

• Higher utilization of motors (no large safety margins)

• Smart control of electrical loads and processes

• Reduction of harmonic currents

• Reduction of demand peaks (cutting utility charges)


Application – Financial SummaryInvestment for the Smart Energy Management System: (including power analyzers, communication, IT) 230 000 €

Investment for Solutions: (incl. max. demand, dynamic PFC, active harmonic filter, …) 455 000 €Total Investment: 685 000 €Saving of Energy cost:Reduction of maximum demand charges 75 000 €/p.a.Reduction of energy sourcing from the spot market 50 000 €/p.a.Reduction of kWh consumption 180 000 €/ p.a.Reduction of maintenance cost: 45 000 €/ p.a.Reduction of drives and equipment failures: 75 000 €/ p.a.Saving due to avoiding production stops: 70 000 €/ p.a.*Total Savings: 495 000 €/p.a.Return of investment: 1.4 years(*) Comparatively low figure considered as it was not very clear before the installation of the SEMS which production stops were related to PQ problems! Probability is high, that this figure could be five times higher.


Application – Client Summary

Dr. Schmidt, Factory Engineer, summarized as follows:

“This energy management project shows that often, like in life the root causes are not that simple to identify and require intensive work, but the hard job pays off and over the long term earns a lot of money for the Company.

Overall we are very satisfied with the SEMS, especially the Janitza electronics UMG measurement devices and the software provided by Janitza. Furthermore the after sales service as well as the application support was most important for the successful conduction of this project!

As we are a global enterprise we are now thinking about the next step, introducing a global SEMS including all of our production sites across four continents.”


Summary


Energy efficiency (reduction of energy cost)

Easy monitoring of energy consumption

Easy reporting of energy consumption, with detailed

information and breakdown of data

Reviewing of power utility bills

Sub-billing to departments, shop owner in a shopping

mall, tenants in an apartment house, clients in a data

centre...

Benefits of SEMS


Providing base line energy consumption of power

utility, with trending, also for negotiating a new

energy supply contract with power utilities

Benchmarking of various production lines in a factory,

buildings, factories of an international enterprise,

shops of a commercial enterprise (e.g. Mc Donalds)

Transparency of the energy distribution system

Create awareness for energy saving

Provide Data to meet CRC commitments

Benefits of SEMS


Higher efficiency in an energy distribution system, i.e. higher

utilization factor (if one knows exactly how a critical point is

loaded, it can be loaded much higher, the “big thumb” = high

safety margin is not required Peak demand management system (for active reduction of high

demand charges)Active control of loads with devices such as UMG604 (e.g. light

control in an office tower, switch off all lights during night, active air-condition control with the temperature input, time control of large compressors to avoid peak loads at critical busy times of the day, ...)

Data management via the GridVis software provides historic data which give a lot of extra information over time, e.g. how is the loading of a certain critical network point, e.g. a transformer is a bottleneck and a new transformer is required if the kW requirement continues to rise like last two years ...

Benefits of SEMS


Power quality monitoring PQM• Identification of over-load scenarios before the process of

the client is stopped• Stabilisation of process, avoiding production stoppages or

break down of equipment • Root cause analysis when a failure has occurred• Alarm management, e.g. THD-V is too high, send an email

to the engineer• Power Quality Solutions specification based on the

monitoring results and detailed data and facts recorded• Data and evidential proof of short term voltage

interruptions or other PQ problems for claims against the power utilities

• Remote monitoring

Benefits of SEMS


Reference Industry Segments & Customers Automotive: Audi, BMW, Mercedes , VW ... Automotive Suppliers: Delphi Automotive System, Bosch … Banks: Deutsche Bank, Dresdner Bank Frankfurt,

Credit Suisse Basel, Commerzbank … Chemical Industry: Dow Chemical, Clariant (CH) … Data Centre & Telecom: IBM Eschborn, IBM Oberursel, Fiducia ... Fair and Convention: Messe Frankfurt, Messe Köln … Hospitals: Military Hospital Hamburg, Kemper Hof

Koblenz, Universitäres Klinikum Düsseldorf …

Insurance: Allianz, Münchner Rück., HUK … Power Utilities: RWE Power Biblis (Atom), Areva ... Semiconductor: Advanced Micro Devices (AMD) , Infineon … General Industry: GE, Rittal, Siemens…

Documents

3 p strategy sems 10-v4