b) 转矩响应
b) The torque responding
c) 定子三相电流 c) Three-phase current of the stator
d) 交、直轴电流
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d) Hand in, straight axle electric current
图3-7 给定转速104.7rad/s、空载时电动机的起动特性 Fig.3-7 Starting characteristic of the motor when give definitely rotational speed 104.7rad/s, unloaded
a) 转速响应曲线
a) The rotational speed responding
b) 转矩响应曲线 b) The torque responding
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c) 三相定子电流
c) Three-phase current of the stator
图3-8 给定104.7rad/s、Tl?10N?m时电机的响应波形 Fig. 3-8 Gives definitely 104.7rad/s, Tl?10N?m Response wave
form of the electrical machinery of m hour
a) 转速响应曲线
a) The rotational speed responding
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b）转矩响应曲线 b) The torque responding
图3-9 额定负载时电机的响应波形
Fig. 3-9 Response wave form of the electrical machinery
at the time of specified load
从以上结果中可以看出，该系统具有较好的起动特性和平稳性。为进一步考察系统的调节功能，分析负载或转速突变的情况下的系统响应。图3-10为电机空载、速度阶跃给定
700rad/s起动，稳速后0.04s时突加5N?m负载时的电机响应曲线。图3-11为带动10N?m负载、速度阶跃给定500rad/s起动0.04s时速度给定700rad/s时的速度、电磁转矩及定子电流曲线。
a) 转速波形
a) The rotational speed responding
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b) 转矩波形 b)The torque responding
c) 三相定子电流
c) Three-phase current of the stator
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