发明名称 |
Method of reducing retroactive effects on the profile of the current drawn from a network by inductive loads and motor drive device using this method |
摘要 |
The method involves using active filtering of the harmonics through a boost-converter. An inductive load is used as at least a part replacement of an inductance needed for the boost-converter. The load is a motor which is driven through a switching bridge. At least one motor winding is used as the inductance for the boost-converter. The function of the boost-converter is integrated in the switching bridge driving the motor and in the motor, whereby a motor winding is used as an inductance for the boost-converter. The motor winding magnetises in a first phase with a voltage of a condenser (5), in a second phase through an electronic switch for power factor correction and in a third phase the motor winding is demagnetised. |
申请公布号 |
EP0869605(A2) |
申请公布日期 |
1998.10.07 |
申请号 |
EP19980810032 |
申请日期 |
1998.01.22 |
申请人 |
HILTI AKTIENGESELLSCHAFT |
发明人 |
NACHBAUR, ALEXANDER;SCHAER, ROLAND;WISSMACH, WALTER |
分类号 |
H02P7/06;H02M1/00;H02M1/42;H02M3/155;H02M7/06;H02M7/12;H02M7/21 |
主分类号 |
H02P7/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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