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发明授权
CN100578412C 机械位置控制装置 有权

机械位置控制装置
摘要：
本发明提供一种机械位置控制装置，其即使在由电动机构成的负载驱动系统的刚性低的情况下，也可以通过以与仅反馈电动机位置信号的半封闭控制相同的稳定性，执行通过反馈负载位置信号而进行的负载位置控制，由此实现高精度的负载位置控制。为此，其构成为，由稳定化补偿电路(80)针对负载(20)的当前位置的测定值、即负载位置信号(xl)实施相位延迟补偿后，由位置信号合成电路(90)将高频部分置换为电动机(20)的当前位置测定值、即电动机位置信号(xm)而作为控制对象位置信号(xfb)，将该控制对象位置信号(xfb)反馈至位置控制电路(110)，从而输出表示电动机(30)驱动负载(20)的扭矩目标值的扭矩指令信号。
摘要（英）：

Even in case the rigidity of a drive system of a load by an electric motor is low, the position of the load can be highly precisely controlled, by making it possible that the position control of the load by feeding back the load position signal is made in the same stability as that of a semi-close control by feeding back only the position signal of the electric motor. For this, a compensation for a phase delay is made by a stabilization compensating circuit (80) upon a load position signal (xl) or the measured value of the current position of the load (20). In a position signal synthesizing circuit (90), a harmonic wave portion is then replaced from an electronic motor position signal (xm) or the measured value or the current position of the electric motor (30) into a control object position signal (xfb), and this control object position signal (xfb) is fed back to a position control circuit (110) thereby to output a torque command signal indicating a torque target value for the electric motor (30) to drive the load (20).

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