Vertical Axis Wind Turbine(VAWT)

                                               The new type of Vertical Axis Wind-Power Turbine ( VAWT )

 

   In the 90’ of the 20th, there was only one type of wind-power turbine, the Horizontal Axis Wind-Power turbine ( HAWT ). It has been used to supply the power for the telecommunication stations, the border posts, the inlands and for the countryside etc..

   Later on, many shortcomings were found from the HAWT, such as easily to be damaged, big noise and disturbance to the nearby electrical equipments etc.. In such case, we realized that we should find some new type of wind-power turbine in stead of the HAWT.

   In order to manufacture the better wind-power turbine, in 2001, co-operated with some famous experts for the first class universities, we, Shanghai MUCE Electric Equipment Co., Ltd. ( MUCE ) started the research work on the Vertical Axis Wind-Power Turbine ( VAWT ). In a period of shorter than one year, we completed the research work and made one sample equipment which passed all the technical tests and finally got the confirmation from our clients including the army. Till now we have supplied more than 60 sets of VAWT to our customers domestically and internationally.

The design principle of the new VAWT

Here we are going to make some detail introduction on the design principle of the new VAWT to meet the needs of our clients.

At the very beginning, the VAWT was of the arc shape of two blades called ф type VAWT. Its area facing the wind is quite small, hence bigger wind power will be needed for starting the turbine. So finally no one was interested in such turbine. We once also tried to make this kind of turbine, but the result was not satisfactory. Some people may ask why at the very beginning no one tried to design the H type VAWT, but фtype. The answer is so simple that a large amount of calculation work was needed for the H type VAWT which was not possible to be done without the modern computer.

In order to meet some special needs, we started the research work on VAWT in 2001 and in the following two 2 years we made a lot of tests and improvement and at the beginning of 2003, our VAWT came into use widely in the islands and in some border regions. And it is also used in the wind-power / solar energy systems.

At present, some companies in the world are working on the research of the VAWT.

Following is the detail technical specification on our H type VAWT:

1.       Technical principle:

In according to the air-force principle and on the bases of the wind tunnel model test, the blade’s shape is of the air plane wing, which will not reduce the efficiency when the wheel is spinning which will cause the change of the blade shape. There are 4-5 blades in equal distance fixed by the connecters connecting the wheel. The wheel will drive the rare-earth metal permanent magnetic turbine to produce the power and then transfer the power to the controller.

This technical principle is based on the slice theory. Practically the calculation will be carried out on the section of the spinning axis of the VAWT model. Note the size of the blade, take “ N “ as the spinning axis distance of each blade using CFD method to do the air-force coefficient calculation. The discrete digital method is used to get the air-force figure of the wing type section, and use the net square method to compare the reymolds member vortex flow

Here the power is produced by using the rare-earth metal permanent magnetic material, by using the wind wheel in accordance with the hole air-force theory and by using the structure of direct driven.

Patent No. of one kind of our VAWT is ZL200420081310.2

                                      

2.       Power feature:

From the principle of the H type VAWT , you will find that the speed increment of the wheel is very fast. (The increment of the moment of force increases very quickly.) So relatively the power increment is also increasing quickly resulting the nice power curve as shown in the drawing. Under the same power, the rated wind speed required by the VAWT is smaller than the present HAWT, besides VAWT can produce bigger power even when the wind speed is low.

                           

3.       Construction:

Because of the usage of the special principle of hole force principle, the connecting way of triangle vector and the structure principle of direct driven, the wind   power will mainly being forced on the wheel. This is why the VAWT is strong in protecting the wind power. The another advantage of the VAWT is its noise-free and less electromagnetism disturbance.

     

                                 The power system drawing of the H type permanent magnetic VAWT

Attachment: Comparison on the present existing VAWT:

      Presently there are mainly two kinds of blade connecting ways:

        A: Horizontal connecting way adopted by some companies. The shortage of such way is the higher requirement on the power transfer shaft, complicated in design and more difficulty in site installation. And on the analysis, the bigger of the power of H type VAWT, the longer of the blade needed. This makes the distance between the middle point of the horizontal connection pole and the middle point of the turbine bigger which will reduce the capacity protecting the wind power. And our triangle vector is the best way to solve the above problems. (Detail comparison is shown in the attached drawing. )

                                                    

Detail comparison on the technical data:

Function and        Foreign VAWT of straight line blade                    MUCE noise-free permanent

                                                                                                                    Magnetic VAWT

1. wind resistance                           35-45m/s                                        60m/s

2 turbine. installation            farer from the wheel                            closer to the wheel

3. way of connecting                     horizontally                                   triangle vector

4. power                              same as MUCE VAWT                    same as foreign HAWT

5. complication                            complicated                                      simple

6. no. of wheel                                   2                                                    1

7. no. of connectors                          20                                                  10

8. no. of bearing and

bearing cover                                2 sets                                             none

9. no. of protecting

Cover                                            2                                                none

10. assembling step                          25                                                  15

11 .price                                RMB25000./KW                      not bigger than RMB20000/KW

Introduction on the features

 of the Vertical Axis Wind Power Turbine ( VAWT )

 

   The Vertical Axis Wind-Power Turbine ( VAWT ) is a new product designed on the scheme of wind tunnel force. We started the research on VAWT 5 years ago, almost at the same time as some developed countries in this regard. Now many of the famous experts the world –wide have accepted such new technology and this technology will definitely lead the development of the small and middle size wind-power turbines. Following are the detail features of such VAWT:

 

Safe in operation:

     Due to the usage of the vertical blade and the force support is of triangle form, the wind force will mainly press on the wheel. So the blades will not be able to fall down, to be broken or to be thrown far away.

 

Noise:

     The way of the turning of the blades is of horizontal and the design of the blade is of the scheme of the wing of the air-plane, so in operation the VAWT will not make any noise.

 

Capacity of wind resistance:

     Due to the advantage of the design of the VAWT, the press force the turbine suffered is minimized and as the result such VAWT can stand on the extra strong typhoon of 45 m/s.

 

Space requirement:

     It needs much smaller working space than other kinds of wind-power turbines. Thus not only saves the space, but also raises the working efficiency.

 

Power curve:

     It needs lower wind speed for its starting and the increasing of the power is slow and stable. So its production capacity is 10-30% higher than other kinds of turbines.

 

Scope of the wind power needed:

      Due to the adoption of the new control system, this VAWT is suitable to be used in the wind speed scope from 2.5 – 25 m/s.. It means we can get full use of the wind source and producing more power economically.

 

Brake system:

      This VAWT is equipped with both the automatic brake system and the handle brake system. The handle brake system can meet the needs to brake the equipment in the area where there is no typhoon and the extra strong wind.

 

Maintenance:

      The turbine of the VAWT is of direct driven permanent magnetic system, without using the gear box and the direction adjustment equipment, so the routine maintenance once half a year on the connecting parts of the rolling equipment will be enough.

                                Research on the Extra-Size Wind-Power Turbine

 

   From the beginning of 2007, co-operated with some famous professors of Shanghai Tong Ji University, we,Shanghai MUCE Electric Equipment Co. Ltd. ( MUCE)started the research on the Extra-Size Wind-Power Turbine (ESWT).
   We, MUCE are the first researcher in such field in the world and the unit power of the ESWT is 10MW or above.
   Recently we have successfully fulfilled the first-stage research work and the result is quite satisfactory conforming to our designed requirement made on the model in according to the wind-fore fundamental.
   On the bases of MUCE resisting Vertical Axis Wind-Power Turbine (VAWT), we decided to start the research on the ESWT. We have done an extrmely careful analysis  work on each and every item of ESWT such as on the forming of the parts, the shape of the blade, wind-resistance module of the connection parts, suspension force of the spinning parts, the moment of force of the permanent magnetic turbine, the prodcuction capcity of the permanent magnetic turbine,
the wind-resistant capacity of the whole set of ESWT and the suitability to the sea level of the ESWT and so on. And meanwhile we have also carried out the wind tunnel test on the model. The result is inspiration, not only being satisfied with the designed requirement, but also having rapidly increased the efficiency of power production. And the cost is lower than the resisting Horizontal Axis Wind-Power Turbine (HAWT).
  Our research work has been received the strong support from Shanghai Science Committee and some other government relative orgenizations which is definitely the solid foundation for our further research.
  Probaly, by the end of this year of 2007, the test on ESWT will be completed and the ESWT will come into the use.
  Such ESWT looks like a small size power mill with the designed power per unit of between 10MW and 50MW.It will be possiblly installed on the top of the buildings, along the coast area, in the shallow sea water, in the plain and at the top of the mountains and at the places wherever the wind is avaliable.
  MUCE is willing and ready to do the best efforts to dedicate the new power for the development of theworld.
  We have applied the international patent for the ESWT.
  your attention and comments will be warmly welcomed.And we will continously keep you informed about our updated progress.
  We have received the CE certificate on our VAWT. 

MUCE  FDM-0.2-100KW Vertical Axis Wind Turbine Brief Introduction 1. Description And Usage: 1 .1 Description: FDM 0.2-100KW Vertical Axis Wind Turbine(VAWT) system is an advanced Vertical Axis Wind Turbine(VAWT) System ( Patent No.200420081310 ) of efficient and nice-looking. The set-up power is from 200W to 100KW. The vane is made on the principle of the wing of the aircraft while the structure is made on the principle of vertical wirlwind which is of the advantage of no influence caused by the winddirectgion. This efficiency of electric energy production is 18% higher than the horizontal wirlwind generator being used at present. This system is of a position-fixed system, hence the electricity transmiission wire will not be stranded in operation. Such system is of a silent Vertical Axis Wind Turbine(VAWT), thus makes it possible to be installed at any places including in some bad locations like on the roof of the house, on the boat, in the snow area and on the lighthouse and in the sea or river area. Such system is developed to replace the old system used at present. The old system is of the horizontal wirlwind. In operation the face of the vane of such old system is heavily pressured by the strong wind which will easily cause the vane deformed and which will definitely cause the heavy noise and the reduction of the turn speed and the deficierncy of electric energy production. 1.2 Usage : This FDM 0.2-100KW Vertical Axis Wind Turbine(VAWT) System can supply the power for the army and the civilian. It is useful to the army telecommunication, family daily use, school life, moterology and hydrology work, microwavee telecommunication, navigation mark, railway signal, advertising board, roof light and roof view light, villa light and boats. For example, 5KW system can produce enough power for one of the following units: a battaloon, 5 families, a middle school, a middle-size telecommunication post, a maintenance squad, a big-size boat etc.. Area: In China, all the provinces except the provinces of Si Chuan, Hu Nan, Hu Bei and He Nan, are of more than 2000 hours of widy days annually which makes this system workable. Note: Annual power of 1 KW means 2000 units of electricity generated, 3KW neans 6000 units, 5KW means 10000 units and 10 KW neans 20000 units and above. 2. Main Feature And Technical Specification: Efficient in electric energy producing; Noisy-free; Low starting wind speed; Strong in wind-resistance; No stranding on the electric wire; Nice-looking; Sufficient handed and mechanical brake system; Workable under any bad environment; Suitable to be used on movable boats and No any requirenment on the wind direction Type: 200W/48V; 100KW/220V,690V , Starting wind-speed: 2.5m/s Working wind-speed: 2.5-35m/s Brake system: at 36m/s by handed or automatic electric brake Max. permissible instantaneous wind speed: 60m/s Working Curve:

http://www.mucee.com/old/images/001.jpg

Actual System At Site And Its Relative Dimension: Relative Dimension: mm http://www.mucee.com/old/images/002.jpg A B/B1 C FDM-150W 1600 3500/4500 2500 FDM-300W 1600 4500/6300 3500 FDM-10kW 6000 6300/7500 5000 FDM-30KW 10000 17500/8300 10000 FDM-100KW 13000 28300/10000 15000 FDM-500KW 17000 37000/15000 90000 FDM-1000KW 35000 45000 FDM-2000KW 50000 45000 FDM-3000KW 60000 45000

The basement installation scheme is shown in the manual. This photo shows the site of the 1 KW system. Position of the installation: on all kinds of the boats; on the rood of house; along the road-side; on the top of the advertising board; on the top of the electric pole; on the top of the mountain and in islands

Shanghai MUCE Electric Equipment Co.,Ltd. ADD： Room No.1210 , No.365 Hu Tai Road, Shanghai, China   Code Post：200070   Tel：0086-21-56555108 E-mail：mucee@mucee.com

 

MUCE新型垂直轴风力发电机是如何诞生的

    上世纪九十年代，我国的独立电源系统主要采用水平轴风力发电机和太阳能光伏系统来供应电力，主要应用于通信基站、边防哨所、海岛部队等特殊场合，主要是面向部队的一套后勤保障系统。

    经过一定时间的应用后，发现诸多问题。如台风期间的设备损坏严重；噪音大，影响人员正常休息；对通信设备的干扰，使得某些设备无法正常运转。这些问题的发生使得部队正常通讯受到了影响。

    2001年，为了解决这些问题，召集相关单位展开讨论，作为部队通信产品配套厂家的上海模斯电子设备有限公司也受到了邀请。会后，经过一定时间的调研和研究，MUCE公司提出承担此项科研攻关的重任，得到了部队领导的同意，并下达指示，必须尽快拿出技术方案并作出样机。

    在西军电、西交大、上复旦、上同济等高校一批专家的配合下，上海模斯电子设备有限公司在不到一年的时间里，就成功研制出了世界上第一台新型(H型)垂直轴风力发电机，并装机试验成功，获得了基础数据和实际经验。在后续的一年里，MUCE对产品进行无数次改进和测试，2002年底产品通过了各项测试，并达到了各项设计要求。

    2002年底至今，MUCE先后在部队安装了60多套垂直轴风力发电机和风光互补系统，为稳定国防，做出了不朽的贡献！

 

 

未来新能源如何在现实中应用-MUCE风光互补系统

      随着能源危机日益临近，新能源已经成为今后世界上的主要能源之一。其中太阳能已经逐渐走入我们寻常的生活，风力发电偶尔可以看到或听到，可是它们作为新能源如何在实际中去应用？新能源的发展究竟会是怎样的格局？这些问题将是我们在今后很长时间里需要探索的，我谨以个人观点表达如下：

      新能源（或称可再生能源更贴切）主要有：太阳能、风能、地热能、生物质能等。生物质能在经过了几十年的探索后，国内外许多专家都表示这种能源方式不能大力发展，它不但会抢夺人类赖以生存的土地资源，更将会导致社会不健康发展；地热能的开发和空调的使用具有同样特性，如大规模开发必将导致区域地面表层土壤环境遭到破坏，必将引起再一次生态环境变化；而风能和太阳能对于地球来讲是取之不尽、用之不竭的健康能源，他们必将成为今后替代能源主流。

      太阳能发电具有布置简便以及维护方便等特点，应用面较广，现在全球装机总容量已经开始追赶传统风力发电，在德国甚至接近全国发电总量的5%-8%，随之而来的问题令我们意想不到，太阳能发电的时间局限性导致了对电网的冲击，如何解决这一问题成为能源界的一大困惑。

      风力发电在19世纪末就开始登上历史的舞台，在一百多年的发展中，一直是新能源领域的独孤求败，由于它造价相对低廉，成了各个国家争相发展的新能源首选，然而，随着大型风电场的不断增多，占用的土地也日益扩大，产生的社会矛盾日益突出，如何解决这一难题，成了我们又一困惑。

      早在2001年，MUCE就为了开拓稳定的海岛通信电源而开展一项研究，经过六年多研究和实践，终于将一种成熟的新型应用方式MUCE风光互补系统向社会推广，这种系统采用了我国自主研制的新型垂直轴风力发电机（H型）和太阳能发电进行10：3地结合，形成了相对稳定的电力输出。在建筑上、野外、通信基站、路灯、海岛均进行了实际应用，获得了大量可靠的使用数据。这一系统的研究成果将为我国乃至世界的新能源发展带来了新的动力。

      新型垂直轴风力发电机（H型）突破了传统的水平轴风力发电机启动风速高、噪音大、抗风能力差、受风向影响等缺点，采取了完全不同的设计理论，采用了新型结构和材料，达到微风启动、无噪音、抗12级以上台风、不受风向影响等性能，可大量用于别墅、多层及高层建筑、路灯等中小型应用场合。以它为主建立的风光互补发电系统，具有电力输出稳定、经济性高、对环境影响小等优点，也解决了太阳能发展中对电网冲击等影响。

      我们将秉承科技是第一生产力这一宗旨，为经济的持续发展提供源源不断的动力！