PITCH AND STALL REGULATED TSTs SEMINAR REPORT -2014

DEPT OF EEE i LBSCEK

PERFORMANCE OF PITCH AND STALL REGULATED TIDAL STREAM TURBINES

2K6EE806(P) Seminar Report

Submitted in partial fulfillment of the requirement

for the award of B.Tech. Degree in

ELECTRICAL AND ELECTRONICS ENGINEERING

Of the Kannur University

Done by

ERFAN.K

DEPARTMENT OF ELECTRICAL & ELECTRONICS ENGINEERING

LBS COLLEGE OF ENGINEERING, KASARAGOD 2014

PITCH AND STALL REGULATED TSTs SEMINAR REPORT -2014

DEPT OF EEE ii LBSCEK

DEPARTMENT OF ELECTRICAL & ELECTRONICS ENGINEERING

LBS COLLEGE OF ENGINEERING KASARAGOD

2014

Certificate

This is to certify that the report entitled “PERFORMANCE OF PITCH AND

STALL REGULATED TIDAL STREAM TURBINES" is a bonafide record of

the 2K6EE806(P) Seminar done by ERFAN.K, under our guidance

towards the partial fulfilment of the requirements for the award of the

Degree of Bachelor of Technology in Electrical & Electronics Engineering of the

Kannur University through LBS College of Engineering, Kasaragod.

SEMINAR CO ORDINATOR HEAD OF THE DEPARTMENT

Mr. Aseem K Prof. Sukumaran P R

Assistant Professor Department of EEE

Department of EEE LBSCE, Kasaragod

LBSCE, Kasaragod.

PITCH AND STALL REGULATED TSTs SEMINAR REPORT -2014

DEPT OF EEE iii LBSCEK

ABSTRACT

Introduction to tidal stream turbines and their different speed control technics

.Basic model of TST configuration and their control system models .Optimum Flow

power extraction and torque curve .Torque versus rotational speed curve of pitch and

stall regulated turbines .Control system modeling of pitch and stall regulated turbines

and their stability at different condition .Pitch and stall regulated control system

design .Performance analysis of pitch and stall regulated system .Loading analysis of

pitch and stall regulated system .Bode plot for plant and regulated system and their

analysis.

.

PITCH AND STALL REGULATED TSTs SEMINAR REPORT -2014

DEPT OF EEE iv LBSCEK

ACKNOWLEDGEMENT

I whole-heartedly thank my seminar coordinator Asst. professor Aseem K,

for providing valuable guidelines and whose constant encouragement played a major

role for the success of this seminar.

I wish to express my sincere gratitude to Prof. Sukumaran P.R, Head of the

department of electrical and electronics engineering for inspiring us to take this

seminar. I also thank my friends for help extending by them.

PITCH AND STALL REGULATED TSTs SEMINAR REPORT -2014

DEPT OF EEE v LBSCEK

LIST OF CONTENTS

SL NO.

CONTENTS

ABSTRACT

ACKNOLEDGEMENT

PAGE

NO

iii

iv

CHAPTER 1 INTRODUCTION 1

CHAPTER 2 TIDAL POWER 2

CHAPTER 3 TST CONFIGURATION AND CONTROL

OBJECTIVES

3

CHAPTER 4 COMPARISON BETWEEN PITCH AND STALL

REGULATION

7

CHAPTER 5 CONCLUSION 17

REFERENCE 19

PITCH AND STALL REGULATED TSTs SEMINAR REPORT -2014

DEPT OF EEE vi LBSCEK

LIST OF FIGURES

SL NO. CONTENTS PAGE

NO

1 TST configuration based on a PMSG and an

FPC.

3

2 Model of a hydrodynamic system. 3

3 Power curve of a TST. 4

4 Variable-speed variable-pitch control strategy. 5

5 Variable-speed fixed-pitch control strategies. 5

6 Power curve for variable-speed fixed pitch

control strategies.

6

7 Design for pitch and stall regulated rotors. 8

8 Steady state outputs as function of flow speed. 8

9 Pitch angle control for above rated flow speed. 9

10 Performance assessment of the pitch control

loop: step responses.

10

11 Bode plot of g11(s). 11

12 Performance assessment of the pitch control

loop.

13

13 Variable-speed stall regulated control strategy. 14

14 Performance assessment of stall control loop. 14

15 Hub height flow speed with longitudinal turbines

intensity of 5%.

15

16 Rotor speed and control output power for pitch

and stall regulated TSTs.

16

17 Dynamic power curves. 17