发明名称 |
SYSTEM AND METHOD FOR CONTROLLING REGENERATING ENERGY IN AN ADJUSTABLE SPEED DRIVE |
摘要 |
A system and method for controlling an adjustable speed drive (ASD) to decelerate an AC load during a generating mode of operation is disclosed. The ASD includes a capacitor and an inverter coupled to a DC link. A current sensor system is coupled to an output of the inverter. The ASD further includes a control system programmed to calculate an energy of the capacitor, generate a reference power using the calculated capacitor energy, and calculate a feedback power from realtime current signals received from the current sensor system. The control system compares the feedback power to the reference power, defines a frequency offset based on the comparison, generates a speed command using the frequency offset, and outputs the speed command to the inverter to maintain a smooth DC link voltage during deceleration. |
申请公布号 |
WO2014209741(A1) |
申请公布日期 |
2014.12.31 |
申请号 |
WO2014US43145 |
申请日期 |
2014.06.19 |
申请人 |
EATON CORPORATION |
发明人 |
MO, YAOJIN;LI, HUAQIANG;YU, ANBO;LI, DAWEI;XIE, JINGFENG |
分类号 |
H02P27/04;H02M5/451;H02P21/00;H02P23/00;H02P29/02 |
主分类号 |
H02P27/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|