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Introduction to

AMarkWINDSmart, affordable and reliable wind turbines

for your home and business

Mohammad M. Haghighi

Project Manager

AMarkVAWT Group

November 2020

All Rights Reserved

4th INTERNATIONAL CONFERENCE ONSMALL AND MEDIUM WIND ENERGY

Introduction to AMarkWIND

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The AMarkVAWT group has been established in 2016, and now, based on

our business model and targets, we are going to continue our business in

Denmark starting 2021. The AMarkWIND is a new brand for wind turbines

with an optimized design from electrical, mechanical, and economical point

of view. In AMarkWIND, different geometries of wind turbines have been

studied and the advantages and disadvantages to each of them have been

used to design the innovative AMark rotor. Besides, high performance and

compatible PM Generator and Electronic Controller and Monitoring System

have been designed for AMarkWIND products. AMarkWIND would produce

renewable electricity with more reliability, efficiency and safety. Currently our

small-scale products suitable for householders and small business are ready

to get necessary certifications and enter the market.

Product Overview


Ref: 1. https://renews.biz/51820/turbine-giants-tackle-blade-erosion/

2. “Integrated design of a semi-submersible floating vertical axis wind turbine (VAWT) with active blade pitch control” 3

Vertical Wind turbines Horizontal Wind turbines

Pros:

› Optimized and industrialized design

› High aerodynamic efficiency

› Variable blade pitch, which gives the turbine blades the optimum angle of attack

Cons:

› Essential need to have a Yaw mechanism

› High weight to swept area ratio due to larger stress on blades

› Creating noise due to high rotor rotational speed

› Rain-drop erosion due to high blade-tip speed

› Technical issues in construction of rotor larger than 10 megawatts

› More bird death because of perpendicularity of their path to the direction of

rotating blades

Horizontal vs. Vertical design

Pros:

› Omni-directional

› Low weight to swept area ratio and possibility to reduce the production cost

› The possibility of constructing a rotor larger than 10 megawatts

› Stability of tower due to rotation of rotor about tower axis

› Lower noise and rain-drop erosion* due to low rotational speed

› Lower Floater cost for off-shore applications*

Cons:

› Aerodynamic efficiency lose due to struts

› Lower rotor rotational speed results using low-speed generator

› Variety of geometries and not industrialized design

› Vibration due to oscillation of torque produced by each blade


Ref: Roscher, B. "Structural optimization of a vertical axis wind turbine with aeroelastic analysis." M. Sc, Wind Energy and Aerospace Engineering,

Technical University of Denmark and Delft University of Technology, Denmark (2014).4

Scaling trend of VAWT rotor and HAWT designs


AMarkWIND Rotor Configuration

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1-1 Optimized Blades for V-Shaped rotor configurations

1-2 Blade Supports with aerodynamic cover

1-3 Light Structured Struts with new Aerodynamic Cover

1-4 Strut Supports

1-5 Rotor Hub


In the AMarkWIND the blades have been twisted mechanically (or

aerodynamically) in order to optimize the Angle-of-Attack along the

blades regarding its V-shaped design.

Blade Design*

In the AMarkWIND the Swept Area of rotor have optimized by

choosing the best inclination angle of blades for different strut

and blade lengths. The rotor is a V-Shaped VAWT.

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Strut Design*

In VAWTs, a considerable amount of power is being wasted

because of the struts. In the AMarkWIND project, a prevailing

and innovative configuration have been designed for the

structure and airfoil of Struts.

Blade Support

In AMarkWIND rotor design the Blade Supports have been added in

order to reduce the stresses on blades. As a result, the weight of the

blades was reduced to one third, meanwhile, the CFRP material has

been replaced with GFRP.

The design of Pitch Control Mechanism for AMarkWIND is

simple, efficient and reliable. Universal joint, gearbox and

servomotor are the main components of this innovative

mechanism for a V-shaped utility scale VAWTs.

Electronic Control Design

In AMarkWIND project, an advanced Electronic Control System have

been designed. This unit has a Modular, Distributed and Scalable

architecture, and it is going to control and optimize the performance

of turbine using Artificial Intelligence (AI) and Machine Learning.

Innovative features of AMarkWIND Products

Pitch Control Mechanism*

* Patented or Registered as Patent in IRIPO

Rotor Geometry


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Rotor Geometry

• The angle between Blade and Strut has been

optimized

• For a specified swept area, the length of

Blade and Strut have been optimized

• One-Strut design for each Wing has been

chosen

• Two Blades for each Wing has been chosen

• Blade support and Strut supports have been

introduced on Rotor ’s geometry

• The rotor designed to connect to the rotor

of High-Performance AFPMS Generator

Directly


Δα

°

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Blade Design

• Efficient Airfoil has been chosen

• The Chord length has been optimized

• Regarding the geometry of rotor, Blades have been

twisted in order to optimize the Angle-of-Attack

along the Blades

• Easy-to-assemble connections have been designed


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Comparison of Out-put Power vs. Tip Speed Ratio in H-Rotor with Straight Blades and V-Shaped rotor with Twisted

Blades. The Maximum Power increased by 5.2% and rates at lower tip-speed-ratio; the centrifugal force on blades

decreased almost by 36%.

Blade Design


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Strut Design

• Thin Strut designed to reduce the aerodynamic efficiency lose

• New airfoil designed to reduce the drag coefficient

• Strut supports designed to increase the mechanical performance



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Blade Support

• Blade supports introduced to reduce the weight of Blades

• The angle between Blades and Supports optimized in trade-off

between aerodynamic performance and mechanical performance



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Pitch Control Mechanism

• A Compact Pitch Control Mechanism has

been designed for large Rotors

• One-Servo design for each Wing has been

designed


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Electronic Control Design

• The Aerodynamic performance of Rotor and Electric performance of

Generator has been considered to design a compatible Controller

• Integrated electronic unit with advanced AI algorithms designed

• Built-in Self-test algorithms designed to increase reliability of system

and reduce maintenance costs

• Fast-Charging module for Electric Vehicles option in Small products


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Patent Certifications


AMarkWIND products have lower price in comparison to other

products thanks to its integrated, innovative and revolutionary

design, specially in large scale products.

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Birds-Friendly

Since the AMarkWIND products are Vertical Axis Wind Turbines,

Birds could notice the rotor more easier. In HAWTs birds could

not foresee the blades coming from above because of

perpendicularity of their path to the direction of rotating blades.

Affordable and Economic

High Performance

The Blades, Struts, Pitch Controller, Generator and Electronic Control

Unit have been designed in particular for AMarkWIND; All the main

components are compatible with each other.

Durable and Safe

Thanks to supports, the Active Pitch Control Mechanism in Large-scale

products, and Intelligent Electronic Control Unit, our products would

withstand severe hurricanes. Also these products would produce power

in larger wind speed range.

Smart and Intelligent

We have employed efficient Machine Learning algorithms to optimize

the performance of our products in different conditions continuously.

Advantages of AMarkWIND Products

Harmonious and Silence

Rotating vertically, is delightful. AMarkWIND is a VAWT with

V-Shaped rotor design, and it has lower noise in comparison

to the conventional HAWTs.


Testing the Prototype of AMarkWIND PM-Generator

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Testing the Model Scale Prototype Using Moving Truck Method

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Installing the AMarkWIND-1KW


AMarkWIND-1KW

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AMarkWIND-5KW

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Rated Power 5 KW

Rotor Swept Area 34 m2

Cut-in 3 m/s

Rated Wind Speed 10 m/s

Generator AFPMSG – 3-Phase

Controller Off-Grid – MPPT and PWM

Tower Lattice – 18 meters

Designed Life Time +20 years

AEO at 6m/s 14,500 KWh

IEC Classification Class II


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Roadblocks on the way of installing more Small Wind Turbines

• Small wind turbines are Not Economic for householders considering their Price

• Most of turbines in the market are Not Looking Fancy and Harmonic

• Some brands make Noise

• Some people do not Trust on the performance and power output of the turbine

• Maintenance Costs are High in lots of brands

Highlights of AMarkWIND


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Competitive price

AMarkWIND is designed to reduce the costs of wind energy.

We used our talents and knowledge to design a complete

product with competitive price, since it is the master key in

this business.

Sustainable Growth

Our business model would lead to a sustainable growth rate

using high-performance management strategies. For instance

we will invest our income to add large-scale products.

Risk Free Sales Method

We are going to sale our small-scale products using pre-ordering and

leasing methods to reduce risk of investments. Using Bank supports as

partners is our solution for selling our products using leasing method.

Win-win Agreement

We will make our costumers to feel Wining by buying AMarkWIND

products. The AMarkWIND-5KW is an ideal choice for householders to

generate clean electricity for their home and also their EVs. The

costumers would pay the turbine’s price in six or seven years, and their

annual payments would approximately be equal to their previous

energy bills. After that, costumers would enjoy almost free energy.

We have designed the Rotor, Generator, Power Controller,

Grid-tied Inverter and Tower based on the aerodynamic

performance of our Rotor. This strategy leads to compatibility

of AMarkWIND products.

Direct and Indirect Jobs

Jobs related to the Production, Installation and After Sale Services

would provide several direct and indirect careers.

Highlights of AMarkWIND

Compatible Components


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Wind Potential in Denmark

Ref: https://globalwindatlas.info/

Based on the GlobalWindAtlas.info

almost all regions except Copenhagen

in Denmark has average wind speed

over 7 m/s in 50 meters height from

the surface, and this shows the

significant wind energy availability.

https://globalwindatlas.info/


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Contact Information

Contact:

Mohammad M. Haghighi

Project Manager

[email protected]

+989392352192

Tehran, Iran

www.linkedin.com/in/m-mohsenhaghighi

m.mohsenh

Thank You

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