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CN101331670A 电压变换装置 失效 - 放弃专利权

电压变换装置
摘要：
一种电压变换器，置于DC电源(B)和电动机(M1)之间，包括：电压传感器(10)和电流传感器(11)，其对向DC电源(B)的电力输入和从DC电源(B)的电力输出进行感测；具有电力控制元件的升降压变换器(12)，其置于连接在电力线(PL1)和(PL2)之间的路径中，电力线(PL1)和(PL2)分别建立了到DC电源(B)的连接和到电动机(M1)的连接；以及控制器(30)，其用于控制升降压变换器(12)。控制器(30)基于来自电压传感器(10)和电流传感器(11)的输出来监视供应到DC电源(B)的再生电力的变化，并且如果再生电力的变化量大于预定量，则控制器(30)通过减小反馈增益的值将升降压变换器(12)的工作模式从快速工作模式改变为缓慢工作模式。
摘要（英）：

A voltage converter, which is placed between a DC power source (B) and a motor (Ml), includes: a voltage sensor (10) and an electric current sensor (11), which senses input and output of electric power to and from the DC power source (B), a buck-boost converter (12) having power control elements, which is placed in a path connecting between power lines (PLl) and (PL2) that establish the connection to the DC power source (B) and the connection to the motor (Ml), respectively; and a controller (30) for controlling the buck-boost converter (12). The controller (30) monitors the change in the regenerated power that is supplied to the DC power source (B), based on the outputs from the voltage sensor (10) and the electric current sensor (11), and, if the amount of change in the regenerated power is greater than a predetermined amount, the controller (30) changes the operation mode of the buck-boost converter (12) from a rapid operation mode to a slow operation mode by decreasing a value of a feedback again.

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