Energy Management System

August 2015

Ferdinandus Hans

Gregorius Satrio

Benediktus Apriyanto

You can’t manage what you don’t measure.

If you can’t measure it, you cant improve it.

-Peter Drucker -

Lifecycle solutions for Energy Efficiency

Energy Audit& Measure

Lifecycle solutions for Energy Efficiency

Energy Audit& Measure

Passive Energy Efficiency

Fix the basics

Low consumption devices, insulation material, power factor correction

Lifecycle solutions for Energy Efficiency

Energy Audit& Measure

Passive Energy Efficiency

Optimise through automation & regulation

Fix the basics

Low consumption devices, insulation material, power factor correction

HVAC control, lighting control, variable speed drives…

Lifecycle solutions for Energy Efficiency

Energy Audit& Measure

Active Energy EfficiencyPassive Energy Efficiency

Optimise through automation & regulation

Monitor, maintain, improve

Fix the basics

Low consumption devices, insulation material, power factor correction

HVAC control, lighting control, variable speed drives…

Meters installation, monitoring services, EE

analysis software

30% savings are available today…

… thanks to a combination of

30% savings are available today…En

ergy

Co

nsum

ption

100%

70%

Effici

ent d

evic

es a

nd

inst

alla

tion

(10

to 1

5%)

Monitoring & Maintenance(2 to 8 %)

• Up to 8% per year is lost without monitoring and maintenance program• Up to 12% per year is lost without regulation and control systems

Time

Opti

miz

ed u

sage

via

au

tom

ation

(5 to

15%

)

… but savings can be lost quickly…En

ergy

Co

nsum

ption

100%

70%

Effici

ent d

evic

es a

nd in

stal

latio

n

Opti

miz

ed u

sage

via

aut

omati

on

Monitoring & Maintenance

Time

● Unplanned, unmanaged shutdowns of equipment and processes

● Lack of automation and regulation (motors, heating)

● No continuity of behaviours

Up to 8% per year is lost without monitoring and maintenance program

Up to 12% per year is lost without regulation and control systems

How to get the data?

Measuring

• Manual oriented (by human)

• Non-real-time• Uncontionus

Monitoring

• Automatic oriented (by an integrated system)

• Real-time• Continuous

Energy Monitoring System

• Architecture• Measuring Equipment• Integration• Data Processing

Architecture

Measuring EquipmentFor Water, Air, Gas, Electricity, Steam

Electricity

PM, SEPAM, MCB, MCCB, ACB, Capacitor, VSD, etc

Non-Electricity

Flow Meter – liquid/gas

(Data Concentrator is needed)

Integration

• Gateway• Communication Protocol• Network Topology

Data Processing

• Database Management• Load Profile• Mapping

Identify Opportunities

• Detect problems on system through:

oMapping

o Load Profile

Power Quality Issues

• Harmonic Distortion

Distorted = Base + Harmonic

Non-linear load:o Switched mode power

supplies (SMPS)o Electronic fluorescent

lighting ballastso Variable speed drives

(VSD)o Uniterruptible power

supplies (UPS)o Magnetic-cored

devices

Solution: Harmonic Filter/Conditioner

Injects in opposite phase of the harmonics drawn by the non-linear load. (Iact=-Ihar)

So its remains sinusoidal

• Voltage Unbalance

• Power Factor

In Indonesiacos Ø > 0.85

(PLN Standard)o Increase kVA needs

o Decrease power distribution efficiency

o Increase heat on equipments

o Low electricity quality because voltage drop

Ratio of the real power flowing in the circuit

Solution: Controlling Power Factor on Grid

Capacitor:

Reduce reactive powerVarlogic (PF Controller):

Controlling capacitor steps

• Motor Starter:ELEKTROMEKANIKo DIRECT ON LINEo STAR DELTAo AUTO TRANSFORMER

Saving Using Inverter

Soft Starter and Variable Speed Drives allows:Smooth start and stop to avoid belt slip

ELEKTRONIKo SOFT STARTERo INVERTER (VSD)

• Variable Speed Drive

Motor supplied by a VSD

Control speed of machinery (frequency)

Controlling HVAC using VSDo Pumpo Fan

• Digital computer used for automation• For industrial electromechanical processes• Based on basic digital gate logic + pascal logic

(NOT, AND, NAND, OR, NOR, XOR, XNOR, IF, THEN) expressed in ladder languange

Progammable Logic Controller

• Digital computer used for automation• For industrial electromechanical processes• Based on basic digital gate logic + pascal logic

(NOT, AND, NAND, OR, NOR, XOR, XNOR, IF, THEN)

Questions&Answers