Nicolas SCHWEY

ERDF – Alpes

Technologies:

Analyzing energy

quality

from the provider

to the investor

ALPES TECHNOLOGIES : A COMPLETE POWER QUALITY SOLUTION

WHAT IS POWER QUALITY ?

There is no ultimate definition for power quality !

The ultimate measure of power quality is determined by

the performance and the productivity of end user

equipment.

Power quality offers solutions to achieve a complete

supervision of all the essential parameters required for

a clean powering of an electrical installation.

Contents

Measuring network quality in the context of

deregulation: the MAGIQ approach.

Assessing network quality: the role of network

analysers.

Network analysis for industrial investors.

INTEREST FOR UTILITIES

To insure that the delivered power

quality is compliant with the standards.

To provide an efficient global overview

of the grid.

To answer to the deregulated market

demand.

Context

Contractual obligations of the French power distributor ERDF in terms of electricity supply quality Electricity supply continuity

Wave quality

These obligations are set out in several documents: Policy document on measurements for quality monitoring on the

EDF managed distribution network

Professional customer contracts (GRDF, CARD and other contract)

Catalogue of services provided by the distributor ERDF

These obligations and commitments require control by appropriate means

In this context, the distributor ERDF has developed the 'MAGIQ' application

MAGIQ – what's the application about?

MAGIQ is a French nationwide Intranet

application

On a single national server, it consolidates all the

data taken from readings made by measuring devices

installed on the electrical network

These measuring devices can be installed at the

Source power station or at a MV customer's

MAGIQ – what are the functionalities ?

Functions currently available in MAGIQ enable:

Consistent data display (at national or local level)

Production of standardized quality reports for equipped

customers

What's at stake for ERDF

Enhanced quality of data collected through remote meter

readings

Enhanced quality of available information

8

Remote-read PC

+ MAGIQ display

National server

MAGIQ Software Architecture

Regional area National center

MAGIQ Application Description

Analysis of HV voltage

At the substation: at the secondary of each HV/MV transformer

At customers' who have a personalized contract for voltage

supervision

At customers' who have a personalized contract for voltage

troughs

Based on measurements taken by Contractual Network Analysers.

At customers' who have a standard contract

Based on the quality data recorded by the ICEs (revenue meters)

where such devices are installed

What are the results ?

MAGIQ counts events (dip, outages, overvoltages) and takesmeasurements (RMS voltage, imbalance, frequency, flicker, harmonics)

Production of Quality reportsPersonalized quality reports on dips (Contractual Network Analysers)

Personalized quality reports on outages (Revenue meters where appropriate)

Standard quality reports (Revenue meters or Contractual Network analysers)

Detailed quality reports on demand (Contractual Network Analysers)

Quality history over the previous 4 calendar years

Contents

Measuring network quality in the context of

deregulation: the MAGIQ approach

Assessing network quality: the role of network

Analysers

Network analysis for industrial investors

ALPES TECHNOLOGIES POWER

QUALITY ANALYSERS :

Alpes Technologies offers a premium range

of product to :

Detect and anticipate the issues on the

electrical network.

Provide reliability.

Match sustainable development by reducing the

wasted energy.

WHERE TO INSTALL POWER QUALITY

INSTRUMENTS ?

Metering and control points

Electrical power

generating station

Regional power station

Industrial process

Factory

Data center, building

consumer

Commercial sector /

Hotel

Electrical distribution

stationElectrical distribution

station

Electrical

interconnection station

Renewable energies :

Wind turbines,

photovoltaic fields

Industrial sector consumer

Production Transmission

Important tertiary

customerIndustrial customer

UTILITY

CENTRAL SERVER

HOW IT WORKS

The analysers are monitored with different communication options

(Modem, Ethernet, GSM)

With WINALP2400 software data are periodically downloaded

The software generates automatic reports

Analyser

Analyser

Analyser

Analyser

•Download server

ALPTEC 2444 devices (100 to 10000)

Al the possibilities dedicated for the power quality survey

•Data Base (SQL server…)

•Multi :Modem,RTC

Light Client : intranet(reports…)

Heavy clientManagement of all the deviceAutomatic reports

•Possibilities for many communications•Specially designed for national grids

Winalp 2400 : management via RTC modem or Ethernet

Ethernet Link

Web site

RANGE OF PRODUCTS

Permanent installation

Mobile instrument

TYPES OF MEASUREMENTS

Voltage dips, over voltages and power outages RMS voltage and current values

All 52 harmonic ranks

Harmonic distortion

Flicker (Pst and Plt)

Active, reactive, apparent power

Power factors…

The instrument offers class 0.1 accuracy

Accordance to standards EN50160 and IEC 61000-4-30 class A

PROVIDING REPORTS WITH WINALP 2400

SOFTWARE :

Automatic summary

providing min. and max.

values at a glance

Weekly curves

Comments and

recommendations

Sensitive industrial investors

Utilities

Wind farms, solar plants

Data centers

Industrial factories

Health care / high technology

Large facilities / new projects

THE POWER QUALITY AUDIT SERVICE

The Power Quality audit service consists in

providing customers with a complete analysis of

their installation.

You fit the equipment which is an easy operation

By GSM transmission data are collected and then

analysed by Alpes Technologies experts.

Alpes Technologies sends back a complete report with

recommendations.

SOLUTION

Example: Cardboard mill

A 2-week study shows that the main network disturbance comes from the flicker produced by the welding stations which generates lamp flickering and wear in the electrical equipment.

Voltage harmonics rates are not excessively high, current harmonics are higher.

Recommendation: install an ALPISTATIC-type fast-tripping capacitor bank to match rapid load variations (within less than one minute) equipped with an induction coil for protection against all harmonics.

The capacitor bank will reduce the flicker rate and clean up the network, with direct consequences: lesser wear in electrical equipment

improved productivity thanks to better visual comfort

Going further: the Power Quality audit service

The Power Quality audit service involves

measuring the electrical parameters of your

installation

You fit the equipment and a remote reading is

taken of the data for your device(s)

This data is then analyzed and a measurement

report produced

The Audit report: a global summary overview

to enable quick and precise decisions

Global outcome of the measuring campaign

Indicator

highlighting

parameters

to be monitored

closely

Example of a report on power

Automatic summary

providing min. and max.

values at a glance

Weekly curves

Comments on analysis

of values measured

Thank you for your attention !