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Proceedings of the 2010 International Conference on Mechanical, Industrial, and Manufacturing Technologies (MIMT 2010)
International Association of Computer Science and Information Technology (IACSIT)
International Association of Computer Science and Information Technology (IACSIT)
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The Working principle of VAWT (vertical axis wind turbine) and calculation method of wind energy utilization efficiency were interpreted. Partial integration method was used to analyze and calculate the relationship between the power of three-leaf structural VAWT and the size of the blades structure, which provides an effective method of fundamental analysis for its structural design. To resolve the issues of wind tracing and constant rotation speed control, an embedded control system based on PIC16F877A MCU was designed. Using angle sensors, temperature sensors, speed sensors, wind speed sensors and battery power monitoring system and so forth, achieves the global control for this VAWT.

Key Words
1. Introduction
2. Working Principle of the VAWT
3. Computing Methode of Wind Energy Utilization Efficiency
4. Calculation of Efficiency and Power
5. Principle of Wind Tracing and Constant Rotation Speed Control and Control Algorithm
6. Working Principle and Structure of Control System
7. Calculation Examples and Experimental Results
8. Conclusion
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