【摘要】 针对余弦交截法实现交-交变频输出波形对称度不好的缺点,鉴于影响电机运行恶化的因素不能用一个定量和精确的数学模型加以衡量,本文提出并运用模糊数学和模糊控制于交-交变频调速系统中以实现输出波形的对称度改造。实验证明,波形改造后电机运行情况良好,此方法非常有效。更多还原

【Abstract】 In view of the poor wave symmetry of cosine interpenetration method for realizing AC-AC frequency conversion output, as well as the pejorative factors that impact motors’ running which is impossible to be measured by a ration and precise mathematical model, the paper suggests an improved way for the wave symmetry by using the fuzzy mathematics and fuzzy control in AC-AC frequency conversion speed regulation system. The experiment proves that the motor runs well and the method is efficient after the wave symmetry is improved.更多还原