Xuejun Tao

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This paper fully describes the use and working principle of resolver, and briefly explans the common used Resolver-to-Digital Converter (RDC for short) decoding arithmetic. Based on this basis, the paper shows a simple software decoding method — the angle tracking observer. It's of low cost, strong anti-interference ability, flexible and convenient(More)
This paper establishes a variable pitch system working force mathematical model by analyzing variable pitch wind turbine blade stress, and designs its closed-loop PID controllers combined with the actual pitch system. a fuzzy adaptive PID loop control is introduced in the variable pitch system position loop, compares with simulation torque curves which were(More)
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