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CONSTRUCTION AND DEMONSTRATION OF 5 VERTICAL AXIS WIND TURBINES H-ROTOR WITH 300 KW RATED POWER

Ziel

Demonstration of operability of 5 vertical axis wind energy converters at a typical installation site.
Evidence of predicted performance curves, yearly production, ruggedness, safety and reliability, low operating costs and exceptional durability.
The evidence provided for the economic advantages of this system over large conventional horizontal axis WEC systems is the basis for its acquisition and large-scale introduction in the market place.
The planned measuring and evaluation program will provide the basis for optimizing (fine-tuning) the systems at different locations.
The first wind turbine was installed in September 1993.
All 5 wind turbines were installed and have started the operation. The measurement program has begun in July 1994. During the test operation phase tuning of parameters was achieved. Besides several typical start phase defects which could be fixed a welding quality problem at the fifth turbine leading to a damage of the rotor head is investigated at present by Germanischer Lloyd, which also recommended interruption of operation for all plants, until the cause of the damage is cleared. Project file closed on 16.07.1996.
Based on the experience gathered through the development, construction and prototype testing of small vertical axis wind energy converters of the innovative H-Rotor type (20 kW rated power) and the prototype system with 300 kW rated power, HM plans to build a small series of five 300 kW systems and to install them for demonstration purposes.
The 300 kW H-Rotor is designed to reduce the disadvantages of conventional wind energy converters as far as the specific technical effort, amount of servicing and reliability are concerned.
The advantages of the H-Rotors in these areas and its economic efficiency are to be demonstrated at a typical coastal sites : The five turbines will be installed at Kaiser-Wilhelm-Koog, situated at the german coast of the North Sea, at the mouth of the Elbe River.
The planned tests and evaluation of the results will serve as a basis for system optimizing.
BRIEF DESCRIPTION OF THE H-ROTOR
- The H-Rotor is characterized by two vertical rotor blades that rotate around the vertical axis of the tower.
- The H-Rotor is mounted on a simple structure of steel elements.
The generator is integrated in the steel structure. Faillureprone mechanical components such as transmissions, rotor pitch adjustment or yaw systems are not required for the H-rotor system.
- The main feature of the construction is that the system uses only one moving part.
- The H-Rotor adapts to the wind conditions at any given moment by adjusting its rotational speed for maximum efficiency. The rotor thus operates with maximum aerodymanic efficiency until it reaches its rated power.

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Heidelberg Motor GmbH
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