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POWER PARAMETERS MONITORING SYSTEM

Siti Syahirah Binti Abdul Mutalib

Bachelor of Electrical Engineering

(Industrial Power) with Honours

(2)

“I hereby declare that I have read through this report entitle “

Power Parameters Monitoring

System” and foun

d that it has comply the partial fulfilment for awarding the degree of

Bachelor of Electrical Engineering (Industrial Power)”

Signature

:

……….

Supervisor‟s Name

:

Dr. Abdul Rahim Bin Abdullah

(3)

POWER PARAMETERS MONITORING SYSTEM

SITI SYAHIRAH BINTI ABDUL MUTALIB

A report submitted in partial fulfilment of the requirements for the degree of

Bachelor of Electrical Engineering (Industrial Power)

Faculty of Electrical Engineering

UNIVERSITI TEKNIKAL MALAYSIA MELAKA

(4)

“I declare that

this report entitle

“Power Parameters

Monitoring System”

is the result of my

own research except as cited in the references. The report has not been accepted for any

degree and is not

concurrently submitted in candidature of any other degree”.

Signature

:

……….

Name

:

Siti Syahirah Binti Abdul Mutalib

(5)
(6)

ACKNOWLEDGEMENT

In the name of Allah, Most Gracious, Most Merciful. Peace and blessings

be upon Prophet Muhammad, son of Abdullah Muhammad, the holy family and

his companions selected.

First of all, I am grateful, with His blessings and grace, giving me a

strength and spirits to fulfil and completing this project. This project could not be

accomplished without a help from my family, colleagues, lecturers and most of

all, my supervisor. I would like to take this opportunity to express my gratitude to

some of them.

Millions thanks and appreciation goes to my supervisor, Dr. Abdul Rahim

Bin Abdullah, for his continuous encouragement and guidance. His generosity of

providing unlimited knowledge is very much helpful towards completing this

project. Without his support, this project might be incompletely successful.

Also, credit of appreciation goes towards all my lecturers of Faculty

Electrical Engineering for their knowledge shared, to all technicians and staffs

contributing in this project.

Finally, to my dear mother and father, sisters and brothers for their endless

support, prayers and loves. The inspiration and motivation given are invaluable

and unforgettable. To all my friends and those indirectly contributed in this

(7)

ABSTRACT

The growth of renewable energy as an alternative source of power supply

nowadays has been widely discovered and used. In fact, most consumers tend to

install one of the renewable energy that is known as solar photovoltaic. This solar

PV is installed in their houses and also industrial sectors since government had

introduced and providing the subsidy funding via Feed-in-Tariff (FiT). The solar

photovoltaic has a feature that the energy stored by solar supply into the battery is

decreasing at anytime. Therefore, a monitoring system need to be developed in

order to measure power consumption based on the type of source currently in use,

either main grid utility or solar supply. In this project, a system for monitoring the

performance of green energy is developed with an appropriate measurement of

power line. The information and data collected are obtained by monitoring

parameters including voltage, current, frequency, active power, reactive power,

apparent power and the power factor. The entire system is designed with the

implementation of data acquisition (DAQ card), personal computer (PC) as well

as the utilization of Visual Basic 2010. Visual Basic 2010 is used to display the

data via graphical user interface (GUI) development. The user-friendly software

is developed in terms of managing and controlling the system via interface

designed. A laboratory testing is conducted to determine system performance

after the combination of software and hardware prior practically applied. At the

end of this project, the monitoring system are used and applied especially in

residences and industrial sector in order to enable the measurement on

(8)

ABSTRAK

Pembangunan tenaga boleh diperbaharui sebagai sumber alternatif bekalan kuasa

pada masa kini telah ditemui dan digunakan secara meluas. Malah, kebanyakan

pengguna telah mulai cenderung untuk memasang salah satu tenaga boleh

diperbaharui dikenali sebagai solar photovoltaic (PV). Solar PV ini dipasang di

kediaman dan juga sektor-sektor industri setelah kerajaan memperkenal dan

menyediakan

pembiayaan

subsidi

melalui „Feed

-in-

tariff‟ (FiT).

Solar

PV

mempunyai cirri iaitu tenaga yang disimpan daripada tenaga solar ke dalam bateri

akan berkurangan pada bila-bila masa. Oleh demikian itu, satu sistem pemantauan

perlu dibangunkan untuk mengukur penggunaan kuasa berdasarkan jenis bekalan

kuasa yang sedang digunakan pada ketika itu, sama ada bekalan kuasa utama

(TNB) ataupun bekalan kuasa solar. Dalam projek ini, satu sistem untuk

memantau prestasi tenaga hijau telah dibangunkan dengan pengukuran yang

sesuai untuk parameter talian kuasa. Maklumat dan data yang dikumpul

diperolehi

dengan

memantau

parameter-parameter

termasuk

voltan,

arus,

frekuensi, kuasa aktif, kuasa reaktif, kuasa ketara dan juga faktor kuasa. Sistem

keseluruhan

telah

direka

dengan

pelaksanaan

perolehan

data

(kad

DAQ),

komputer peribadi (PC) serta penggunaan Visual Basic 2010. Visual Basic 2010

digunakan

untuk

memaparkan

data-data

melalui

pembangunan

antara

muka

pengguna grafik (GUI). Perisian mesra pengguna dari segi menyusun dan

mengawal sistem dibuat melalui antara muka. Pengujian makmal dijalankan bagi

menentukan prestasi sistem selepas gabungan perisian dan juga perkakasan

sebelum digunakan secara praktikal. Di akhir projek ini, sistem pemantauan ini

akan digunakan dan diaplikasikan terutamanya di kediaman dan juga sektor

(9)

TABLE OF CONTENTS

CHAPTER TITLE

PAGE

ACKNOWLEDGEMENT..……….………...

i

ABSTRACT

...………...

ii

ABSTRAK...……….………...

iii

TABLE OF CONTENTS

…………...………...……...

iv

LIST OF TABLES

………...….……..

vii

LIST OF FIGURES

…………...……….…….

viii

LIST OF

APPENDICES....…...……….…….

xi

CHAPTER

1

INTRODUCTION

1

1.1

Research Background……….………...

.

...

1

1.2

Problem

Statements...………

..

……

.

...

3

1.3

Objectives of the Project...………

...

…..

...

.

4

1.4

Scopes of the Project………

...

..

4

(10)

2.1

Overview....………

..

………

....

7

2.2

Research on Monitoring Systems………

..

.

….

8

2.3

Visual Basic 2010...……….

12

2.4

Data Acquisition………..

14

2.4.1

Interfacing using NI USB 4009………

...

14

2.5

Summary of Literature Review..

………

...

16

3

RESEARCH METHODOLOGY

17

3.1

Overview...

17

3.2

Project Development Process Step...

....

17

3.2.1 Software Development...

21

3.2.2 Hardware Development...

23

3.2.2.1 Voltage Divider Application...

24

3.2.3 Software and Hardware Combination...

26

3.3

Power Line Measurements...

...………

.

…..

27

3.3.1 Voltage Measurement...

27

3.3.2 Current Measurement...

28

3.3.3 Active Power Measurement...

28

3.3.4 Reactive Power Measurement...

29

3.3.5 Apparent Power...

29

3.3.6 Power Factor...

29

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3.3.8 Fourier Transform...

30

3.3.9 Power Consumption...

30

4

RESULT, DISCUSSION AND ANALYSIS

31

4.1

Overview...

31

4.2

Systems

Result………

..

………

.

………

31

4.2.1 Solar Supply Waveform Graphs...

33

4.2.2 TNB Power Line Waveform Graphs...

34

4.2.3 Solar and TNB Power Consumption...

36

4.2.4 Solar and TNB Measurement Parameters...

37

4.2.5 System Tools... 37

4.2.6 Recorded and Stored Data... 38

4.3

System Functionality Test..

………

..

…..

39

4.4

Performance Analysis of the System... 41

5

CONCLUSION AND RECOMMENDATION

53

5.1

Overview...

53

5.2

Conclusion...………

....

……

.

……….…..

53

5.3

Recommendations...

54

REFERENCES

56

(12)

LIST OF TABLES

TABLE

TITLE

PAGE

Table 3.1

Summarization of project development step

20

Table 4.1

Power Consumption of Solar and TNB Power Supply

39

Table 4.2

Comparison of TNB voltage between Power Parameters

Monitoring System and Fluke meter

43

Table 4.3

Comparison of solar voltage between Power Parameters

Monitoring System and Fluke meter

44

Table 4.4

Comparison of TNB current between Power Parameters

Monitoring System and Fluke meter

45

Table 4.5

Comparison of solar current between Power Parameters

Monitoring System and Fluke meter

46

Table 4.6

Comparison of TNB active power between Power Parameters

Monitoring System and Fluke meter

49

Table 4.7

Comparison of solar active power between Power Parameters

(13)

LIST OF FIGURES

FIGURE

TITLE

PAGE

Figure 1.1

Solar photovoltaic installed on the rooftop

3

Figure 1.2

System Block Diagram

5

Figure 2.1

Wireless monitoring on solar panel performance concept

8

Figure 2.2

Experimental Set-Up for Standalone PV

9

Figure 2.3

Photovoltaic module performance monitoring system

block diagram

10

Figure 2.4

Experimental test rig

11

Figure 2.5

Signal/Data transferring between DAQ device and computer

14

Figure 2.6

Data acquisition NI USB 6009

15

Figure 2.7

NI USB 6009 pinout

15

Figure 3.1

Flowchart of overall project methodology

19

Figure 3.2

Flowchart of Software Development

21

Figure 3.3

Main Form of Monitoring System Software Development

22

Figure 3.4

Flowchart of Hardware Development

23

Figure 3.5

Block Diagram of Voltage Divider Application

25

Figure 3.6

Interface of Software and Hardware Combination

26

(14)

Figure 4.3

RMS Voltage and Current

33

Figure 4.4

Solar Power Spectrum

33

Figure 4.5

Solar Average Voltage and Current

33

Figure 4.6

Solar Active, Reactive, Apparent and Power Factor

33

Figure 4.7

TNB RMS Voltage and Current

34

Figure 4.8

TNB Power Spectrum

35

Figure 4.9

TNB Average Voltage and Current

35

Figure 4.10

TNB Active, Reactive, Apparent and Power Factor

35

Figure 4.11

Solar and TNB Power Consumption Waveform (kWh)

36

Figure 4.12

Solar and TNB Measurement Parameters

37

Figure 4.13

System tools

37

Figure 4.14

Record and Storage Data in Notepad

38

Figure 4.15

Solar and TNB Power Consumption Line Graph

41

Figure 4.16

Measurement Tools for Analyzing System Performance

42

Figure 4.17

RMS Voltage and Current Verification for TNB

47

Figure 4.18

RMS Voltage and Current Verification for Solar

47

Figure 4.19

TNB Active Power Verification

51

(15)

CHAPTER 1

INTRODUCTION

1.1

Research Background

Electricity supply nowadays is not strictly focused on the main grid utility.

In fact, the electrical sector handling the power supply has discovered various

types of energy sources that could contribute as alternative electricity supply

known as Green Energy (G.E). It is known so as its characteristics of the energy

are free of environmental pollution and also a non-harmful energy that would not

give any bad impact of its surroundings. Green energy holds the facts that it is

different compared with current generated energy used nowadays that mostly

fossil fuel generated electricity including coal, oil and so on.

With the facts that these source of energy may soon be run out, it cause

that these energy becoming more expensive. Researchers around the world started

their finding of alternative energy sources including Malaysian government. A

few types of energy wer

e selected as this country‟s alternative energy

including

solar photovoltaic (PV). Solar photovoltaic energy is one of the most abundant

resources, widely distributed, renewable and does not pollute the environment [1].

Malaysian

government

had

encouraged

the

renewable

energy

usage

including solar photovoltaic installation. This is done by giving out an incentive

known as Feed-in-Tariff (FiT) depending on amount of power consume per

month. The development of renewable energy in this country is been made by the

government with involvement from Sustainable Energy Development Authority

Malaysia, SEDA as an Advisor in all matters relating to sustainable energy [2].

(16)

them of having an optimum capacity of energy being stored. Since solar energy

depends on the expected time dependence of solar radiation availability and other

factor, it causes the solar PV having an optimum capacity of the energy storage

[3]. Once the electrical energy produced by solar PV become lower due to the

reaching of their maximum point, electrical energy from power line will take over

the electricity supply. The public are already aware of the advantages of applying

GE in their daily lives and they had started to have an expert to consult and

installing solar PV at their residences and in industry as well.

A monitoring system of this solar PV is needed and compulsory to provide

information of solar PV and also main grid utility‟s performance. It would give

adequate information to consumers to let them acknowledge an amount they

could save by using solar PV. Hence, this project had been developed to measure

and monitor the power line parameters including voltage and current that also

lead to a measurement of power (Watt), apparent power (VA), reactive power

(Var), power factor (pf), frequency (Hz) as well as the power consumption (kWh)

in both solar PV and utility grid power line.

The significant of all parameters stated to be monitored is to facilitate

consumers with easy and self-monitored power consumption. According to SEDA

[2], the average time of solar photovoltaic generation is 3.5 hours per day

depending on the weather condition. Hence, with this monitoring system,

consumers will be able to identify their total power consumption daily instead of

monthly referring to the electricity bills. This will also help them in predicting

(17)

Figure 1.1 : Solar photovoltaic installed on the rooftop

1.2

Problem Statements

The use of solar energy in terms of renewable energy has been

emphasized in most of the country. The output of photovoltaic (PV) solar systems

varies

instantaneously

with

changes

in

radiation

[4].

Stand

alone

solar

photovoltaic as known as off-grid solar system store the energy by using batteries.

The energy stored or currently supplied to the consumers would decrease as the

unavailable of the sun and the energy stored might run out at any time. Previous

up to present days, people used to monitor and record the signal captured from

solar power line manually by using digital multimeter and record the reading.

This would cause an error and inaccurate reading taken and the data analyze using

waveforms is inappropriate.

Furthermore, the equipments used in obtaining the data are not

well-monitored and have inappropriate data storage. A lot of studies found that

monitoring system in solar energy is essential to improve the performance of

energy supplied. However, these researcher‟s findings mostly focuses on large

scale solar power plant [5]. Solar photovoltaic installations in recent days are

(18)

power consume in real time per month will not be constant as a change in the

weather including environmental affect [1]. Thus, the idea of this monitoring

system is developed so that consumers could self-monitor power line parameters

in order to determine their power consumption in both power supplies

accordingly.

1.3

Objectives of the project

There are several objectives that need to be achieved in order to achieve

the aim of this project:

i.

To develop a monitoring system that can measure power line

parameters from solar photovoltaic (PV) supply as well as main grid

utility (TNB) power line.

ii.

To design user-friendly graphical user interface (GUI) with Visual

Basic 2010 application.

iii.

To verify the performance of the monitoring measurement in terms

of accuracy.

1.4

Scopes of the project

This project is developed by utilizing NI USB 6009 DAQ Card and also

Visual Basic 2010 program. The scope of this project consists of:

1.

This system is built by using Microsoft Visual Basic 2010 software and

data acquisition card, NI USB 6009 (DAQ Card).

2.

This system can measure and monitor power line parameters including

voltage (rms and average), current (rms and average), frequency, active

power, reactive power, apparent power, power consumption and also

(19)

3.

Voltage and current signals are measured between 0 to 500 V (rms) and 0

to 300 A (rms) for single phase power line.

The data measured are then will be recorded and stored in the computer.

Figure 1.2 : System Block Diagram

1.5

Thesis Outline

Chapter 2

:

Literature Review

In this chapter, the content is aiming in reviewing the idea and also the

understanding about solar monitoring system. Previous researches relating

to monitoring system also studied and summarized. Also, the equipments

involved are discussed.

Chapter 3

:

Methodology

In chapter 3 which is methodology, several approaches and procedures are

discussed. It is including the development process step, flowchart of

overall project as well as software and hardware development. Many

aspects are taken into account in order to achieve the objectives and

completing this project successfully.

0 – 500V

0 – 300A

Voltage Transducer

Current Transducer

(20)

The analyzed results and performance data verification of this project are

discussed in this chapter. The program is built and written by using Visual

Basic 2010 and simulated. It is then interfaced by DAQ Card, NI USB

6009 to be linked with the hardware part. Prior conducting test with

hardware part, the system is simulated in the computer. After that, the

testing on system functional and system performance analysis are carried

out.

Chapter 5

:

Conclusion and Recommendation

In this chapter, the whole project are summarized and concluded together

including

several

considerations

and

recommendations

for

future

development. Basically, the objectives of this project are achieved. This

project will help user by providing them with information of monitored

(21)

CHAPTER 2

LITERATURE REVIEW

2.1

Overview

This chapter will cover on the previous research finding of power

parameters monitoring systems used to monitor signal parameters from solar

energy mainly in photovoltaic (PV) solar. There are several methods that

researcher‟s had developed

to be applied in monitoring the signals. As in this

project, the Visual Basic 2010 version is applied to display the monitored data.

The use of data acquisition is also necessary in order to process a measurement of

electrical parameters that are voltage, current, frequency, active power, reactive

power, apparent power as well as the power factor. The type of data acquisition

(DAQ card) used to feed the data into the PC also will be discussed further in this

chapter.

2.2

Researches on Monitoring Systems

The performance parameters of distributed solar panels has been measured

and monitored by applying Wireless Sensors Network as in article [5]. The

system is designed by the authors using the wireless sensor network together with

automated data logging computed in the laboratory. The system built by

understanding the characteristics of particular panel under various light conditions

to determined the performance of panel or an array of the panels. This is

accomplished by tracing the I-V characteristics under certain conditions. It is also

(22)

network by taking ZigBee communication as a medium of sending and receiving

data monitored.

Figure 2.1 : Wireless monitoring on solar panel performance concept.[5]

The

monitoring

system

has

also

being

developed

for

standalone

photovoltaic solar with monitoring parameters including average battery‟s

temperature, voltage and current [6]. These parameters are fed to the PC with

DAQ as an interface. The system is developed in order to quantify the potential

for performance improvement purpose in standalone photovoltaic (PV) solar

systems by creating the prototype of the systems. To create a standalone

photovoltaic (PV) system to be tested and simulated, the integration of personal

computer, data acquisition, a battery array and also solar array simulator (SAS)

are involved. In addition, LabVIEW software is utilized as a programming of the

inter-instrument communication which creating the graphical user interface (GUI)

for data acquisition (DAQ) as well as the solar array simulator (SAS). The

experimental set-up for this research as shown in Figure 2.2 below with

(23)

Figure 2.2 : Experimental Set-Up for Standalone PV.[6]

On the other hand, a wireless Zigbee microcontroller has been applied to

determine the performance monitoring systems for solar photovoltaic (PV).

Previous research has found that under non-ideal conditions, there are degradation

of performance in Maximum Power Point Trackers (MPPT) and also the output

power decreasing significantly. This will led to monitoring and detection system

of non-ideal conditions in PV modules. The system developed by applying

Zigbee-enable microcontroller with back end embedded programming and front

end graphical user interface (GUI) providing remote monitoring of an array PV

modules real-time parameters that are voltage, current as well as the power. Other

than developing systems for monitoring purpose, this system also allow fault

detection as well [7]. This development can be represented as in block diagram

(24)

Figure 2.3 : Photovoltaic module performance monitoring system block diagram. [7]

A monitoring PV power stations by novel approach as developed in article

written by E.M Natsheh, E.J Blackhurs and A.Albarbar. The monitoring system is

been conducted by calculating the difference in residual between estimated model

and

actual

measured

parameters

so

that

the

system

degradation

early

determination is enables. Derivation of the models has been accomplished with

Matlab/Simulink software implementation. A dialog box also designed to enable

the

user

input

of

PV

system

parameters

respectively.

The

performance

development of this monitoring system achieved via examination and validation

under various operating condition and faults including dust, shadow and so on.

Furthermore, the simulation and analysis of the results has been completed under

Gambar

Figure 1.1 : Solar photovoltaic installed on the rooftop
Figure 1.2 : System Block Diagram
Figure 2.1 : Wireless monitoring on solar panel performance concept.[5]
Figure 2.2 : Experimental Set-Up for Standalone PV.[6]
+2

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