lefttoprighttopNoble Group of Institutions CERTIFICATE This is to certify that the project entitled DUAL ROTOR WIND TURBINE GENERATOR has been carried out by Uday Trivedi under the guidance of Prof

lefttoprighttopNoble Group of Institutions
CERTIFICATE
This is to certify that the project entitled DUAL ROTOR WIND TURBINE GENERATOR has been carried out by Uday Trivedi under the guidance of Prof. Raghuvir Kubavat in partial fulfillment for the degree of Bachelor of Engineering in Electrical 8th semester of Gujarat Technological University during the academic year 2017-18. These students have successfully completed PMMS activity under my guidance.

Date:-
Internal GuideHead of Department
Prof. Raghuvir KubavatProf. Rakesh Akabari(Electrical Department) (Electrical Department)
lefttoprighttopNoble Group of Institutions
CERTIFICATE
This is to certify that the project entitled DUAL ROTOR WIND TURBINE GENERATOR has been carried out by Nikhil Gondaliya under the guidance of Prof. Raghuvir Kubavat in partial fulfillment for the degree of Bachelor of Engineering in Electrical 8th semester of Gujarat Technological University during the academic year 2017-18. These students have successfully completed PMMS activity under my guidance.

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Date:-
Internal GuideHead of Department
Prof. Raghuvir KubavatProf. Rakesh Akabari(Electrical Department) (Electrical Department)
lefttoprighttopNoble Group of Institutions
CERTIFICATE
This is to certify that the project entitled DUAL ROTOR WIND TURBINE GENERATOR has been carried out by Naresh Gorfad under the guidance of Prof. Raghuvir Kubavat in partial fulfillment for the degree of Bachelor of Engineering in Electrical 8th semester of Gujarat Technological University during the academic year 2017-18. These students have successfully completed PMMS activity under my guidance.

Date:-
Internal GuideHead of Department
Prof. Raghuvir KubavatProf. Rakesh Akabari(Electrical Department) (Electrical Department)
lefttoprighttopNoble Group of Institutions
CERTIFICATE
This is to certify that the project entitled DUAL ROTOR WIND TURBINE GENERATOR has been carried out by Jaytun Solanki under the guidance of Prof. Raghuvir Kubavat in partial fulfillment for the degree of Bachelor of Engineering in Electrical 8th semester of Gujarat Technological University during the academic year 2017-18. These students have successfully completed PMMS activity under my guidance.

Date:-
Internal GuideHead of Department
Prof. Raghuvir KubavatProf. Rakesh Akabari(Electrical Department) (Electrical Department)
ACKNOWLEDGEMENT
We express our sincere thanks to Ass. Prof. Raghuvir Kubavat, our project in charge, who guided and corrected me with lot of attention and care. He helped us to understand the intricate issues involved in project-making besides effectively presenting it. Our work is completed only because of his guidance.

We are highly grateful to the H.O.D. of Electrical Department, Prof. Rakesh Akabari for his noble spontaneous help that carried out our work on time. We would like to thank our institution and our faculty members for all the guidance and friendly treatment which helped us to complete our project.

We are also thankful to our friends and all well-wishers who provide necessary guidance during our project work.

Uday Trivedi150353109031
Nikhil Gondaliya150353109013
Naresh Gorfad150353109014
Jaytun Solanki150353109026
INDEX
ContentsPage No.College Certificates……………………………………………………………………iCompletion Certificates………………………………………………………………v
Plagiarism Certificate…………………………………………………………………ix
Acknowledgement…………………………………………………………………….x
List of Figure………………………………………………………………………….xiii
Abstract………………………………………………………………………………xiv
Chapter-1Introduction…………………………………..……………………….1
Problem Summary………………………………………………………………2
Aim and objectives of Project………………………………………………….2
Plan of Work……………………………………………………………………3
Literature Review………………………………………………………………4
Material / Tools Used………………………………………………………….4
Chapter-2Design……………………………………..……………………………5Model of the Proposed System…………………………………………………6
Design of the Wind Mill……………………………………………………….6
Implementation Strategy………………………………………………………7
Block Diagram…………………………………………………………………7
Chapter-3Implementation………………………………………………………8
Implementation of Description………………………………………………9
Chapter-4Business Model Canvas…………………………………………….12
Key Partners…………………………………………………………………13
Key Activities………………………………………………………………14
Key Resources………………………………………………………………14
Value Prepositions………………………………………………………….15
Customer Relationship………………………………………..……………..16
Channels………………………………………………………..…………..16
Customer Segment………………………………………………..………..16
Cost Structure……………………………………………………..………..17
Revenue Streams………………………………………………….………..17
Chapter-5Summary………………………………………………….………..18
Advantages………………………………………………………….………19
Disadvantages……………………………………………………….………19
Applications………………………………………………………….……..19
Conclusion…………………………………………………………………….……20
References………………………………………………………………………….21

List of Figure
Figure No.Figure NamePage No.1Plan of Work……………………………………………………..3
1(a)Single Rotor wind Turbine Generator……………………………7
1(b)Dual Rotor Wind Turbine Generator………………………….…7
2Block Diagram of Single Rotor……………………………….…7
3Block Diagram of Dual Rotor……………………………………7
4Schematic Model of Dual Rotor…………………………………9
5Rotor Position at 00……………………………………………..10
6 Rotor Position at 900………………………………..…………..10
7Rotor Position at 1800…………………………………………..10
8Model of Dual Rotor……………………………………………11
9Business Model Canvas…………………………………………13
Abstract
The objective of this paper is to propose an efficient, low cost and rugged design of medium sized gearless permanent magnet stator-less contra-rotation wind power generator. The earlier models of such medium sized generators, capable of generating less than one megawatt electric power, are facing huge mechanical losses due to wear and tear in the tightly coupled mechanical gear system. Due to this heavy arrangement in its mechanical assembly, the earlier design and its prototype could not function with high efficiency. The proposed design focuses on the performance of the model using the concept of stator-less dual rotor arrangement in the generator. The design was tested at various wind speeds and directions and the performance of the proposed permanent magnet machine has been experimented. The results of this sustainable and renewable model and design were compared with those of the existing models to promote green energy systems in the future.

1.1Problem Summary
Efficiency of convention wind turbine is low.

Conventional wind turbine produces more noise.

Separate yawing system is required.

Power production for a specific area is low.

Cut in velocity of Conventional wind turbine is high.

1.2Aim and Objective of Project
In power generation world, the main aim is how to generate maximum power from different types of energy sources like conventional type energy sources, non-conventional type energy sources. Non-conventional type energy sources include solar power, biogas, tidal power, geo thermal power and wind power.

To generate power using of wind is the great way because wind is available in huge amount in all over world. By using of wind mill, we can generate power from wind energy.

Generally the wind mills are of single rotor type but here in our project we’ll make dual rotor type wind mill. Because of dual rotor, the wind which is passes from first rotor that can be used for second rotor and power generation can be increased.

The main reason is that a single rotor can’t be designed to achieve large changes in velocity. So here we introduced the multiple rotor either in tandem (one after one) or in opposite direction to convert maximum energy of wind into electrical energy to generate the power.

The goal of our project is to determine the feasibility of improving wind energy conversion efficiency by utilizing a dual rotor wind turbine system.

“Dual Rotor Wind Turbine Generator” is accomplished in concern according to new generation technologies in renewable energy sources for green and clean energy generation. Such technology includes a rotatable drive shaft, a first rotor assembly connected to drive shaft, a second independently rotating rotor assembly coupled to the drive shaft rearward to the first rotor assembly.

1.4 Literature Review
Patent Name: – MACHINE FOR CONVERTING WIND ENERGY TO ELECTRIAL ENERGY
Patent No. 5,506,453;
Patent Date: – Apr. 9, 1996
Conclusion: – Alternator within the housing formed of power take off member coupled to one shaft and a rotor coupled to another shaft for counter rotating when the propellers rotate for thereby generating electricity.

1.5 Materials/Tools used
SOLIDWORK 2013 software (design purpose)
Steel pipe
Simple DC Motor
PVC pipe
Permanent magnet
Winding Material (copper wire)
Slip ring
Blades (different size)
Bearings
Pliers
Cutter
Grinder machine
Drilling machine
Screw driver
Activity:-
Moving Vehicle
Farmer are Working
Eating
People are Working
Worker is Climbing
Air is Flowing Fast
Drinking
Engineers are Discussing
Environment:-
Clean
Dry
Noise of Windmill
Mostly fait surface of land is used
Interaction:-
Discussed with Villagers
Talked to SarpanchRegarding Electricity Problem
Power Profile Fluctuation
Discussed Regarding Load Variation
Suggested by engineer to upgrade rotor technology
Objects:-
Car
Tractor
Cable
Tools
Wind mill
Users:-
General public
Students
Engineers
Workers
Distributor
Professor
Consumers
General Manager
Users:-
General public
Students
Engineers
Consumers
Professor
Worker
Stockholders:-
G.E.B
Professors
SuzlonElectrical manufacturing company
Power generation Corporation
Activities:-
Moving Vehicle
Farmer are Working
Eating
Drinking
People are working
Engineers are discussing
Worker is Climbing
Air is flowing Fast
Story Boarding:-
Happy Story:-
“AATKOT” is a small village with many villagers. People of that village are blessed with their work in the field of farming. But there was big problem of electricity. All farmers of that village were not so much happy with the electricity that government provided. So, we thought that we had to put one Dual Rotor Wind Turbine Generator in that village. After putting this all farmers are happy & they start to produce very high amount of production.
Happy Story:-
There was a one person whose name is Dharmik. He constructed one future-city. In that future city he needed electricity. So, he wants too many dealers for providing electricity. He also asked government to give electricity in his city. But no one helped him. He was very depressed. But one day he talked to his brother whose name is Hiren about his problem. So, Hiren decided to help his brother putting Dual Rotor Wind Turbine Generator.

Sad Story:-
During this project many problems occurred. There was a village whose production is very good. People of that village were very calm and lots of patience. But they all are very depressed about electricity that government provided. Children can’t read at night, patient who were admitted in hospitals also face many problems.

All the villagers were very sad.

Sad Story:-
There was a city. Many people were staying in that city. Near that city there was a big factory. That factory provides much type of household products. They also produce good quality type of products. But they can’t afford electricity bill. Due to more electricity bills, production of that factory decreases. At last, owner of that factory have to close his factory.
2.1 Model of the proposed system
It is to propose a low cost model and design of gear-less permanent magnet stator-less dual rotor wind power generator (PMSLCRWPG). It is possible to design it as stand-alone model for low power applications like domestic use in remote areas, such as highly isolated locations like hilly areas, where it is not possible to transmit the electricity through overhead lines or underground cables.

This type of wind power generation has low production cost. Therefore, this model is viable for implementing in large scale electricity generation for meeting high power requirements. This model has capable to generate economical and efficient power than a single rotor type wind electric generation system. Also, it can produce power approximately twice that of a single rotor power generation.

The per unit generation cost of five types (including now under consideration) of power generating plants like hydro, thermal, nuclear, wind power and PMSLCRWPG based system are shown in the table I. In case of PMSLCRWPG power generation cost is very low compared to other types and hence, it is more economical than other types of power plants.

2.2 Design of the wind mill
Most of wind turbines in the world are single rotor systems, which provide simplicity and reliability. From many years, improvements or changes in this single rotor system introduced to some factor. For example, gears with reduced noise and alternators have better electrical efficiency.

However, despite these improvements, single rotor systems are not capable to convert total wind energy into electrical energy. Practical wind turbines convert less than 30% of the wind energy into electrical energy. Hence, nearly 50% of the wind energy escapes without being harnessed or without converting into electrical energy.

Simple design of single rotor and dual rotor wind turbine generator is as shown in figure-1 (a) & (b) respectively.

4.2 Key activities:
Manufacturing unit
It is made different departments which produce the product by different steps.

Testing unit
It is a unit in which testing of product is done. It is helpful to maintain quality of product.

Commissioning unit
It is a process of assuring that all systems and components of a wind-mill are designed, installed, tested, operated, and maintained according to the operational requirements.

Government & Private Sectors
This provides services like tender, contract, land permission.

R&D department
This department is helpful to develop product as per future technology. It takes review of products to the customer and upgrade product with new features.

4.3 Key resources:
Finance
It is the main part through this we can buy electronics & mechanical components, and through the developed production department buy new stuff.

Row material
It is a material which can be converted into a product by process on it.
Machines and tools
Multimeter, tester, control panel are used to process our material into useful product.

Safety equipment
It must require in any company. It is like switch gear for safety of instruments, fire safety, first aid box etc
5.1 Advantages
Efficiency is higher than single rotor wind turbine generator.

It reduces bending stress on the tower because both rotors counterbalance each
other.

The output of this model is equivalent to the output produced by two single rotor
generator, so it will be economical to construct two single rotor generators.

5.2 Disadvantages
Complicated construction than single rotor wind turbine.

Due to complicated construction, maintenance is difficult.

It requires more wind speed than single rotor so, it only constructed where wind
speed is very high.

5.3 Application
For small scale power supply like; Commercial Complex, Small Scale Industries,
Residential Apartments and Villas, Educational Institutions and Hostels.It can be used for pumping water
It can be more useful to solve power problems- specially at remote areas and hilly
areas.

CONCLUSION
Finally from this project we have concluded that our new idea will change the current system and also it will help to improve in generation of electricity. Our idea will give better service.
Dual rotor wind turbine generator is new technology of wind generation. From the design of this dual rotor wind turbine generator, the production of electricity is more efficiently. In future we will also try to add more features in this design.