http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10008970-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7af673589ca45d2fd8b9ea902cdbd1dc |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H02P25-098 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H02P21-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H02P21-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H02P27-08 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H02P25-098 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H02P21-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H02P27-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H02P21-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H02P21-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H02P7-00 |
| filingDate | 2017-04-12^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2018-06-26^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_59b927da3f12b39b764fe0b7ca8cda87 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_60f3531f04539ce674619581dc9c732f |
| publicationDate | 2018-06-26^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-10008970-B2 |
| titleOfInvention | Control apparatus for AC motor |
| abstract | A control apparatus for an AC motor includes an inverter, a voltage-command calculation unit calculating a vector used for giving a command to the inverter, a voltage-waveform specifying unit specifying, as a voltage waveform for operating the inverter based on the vector, a pulse pattern selected from previously stored voltage waveforms, or a voltage waveform of a PWM signal generated by a comparison between a phase voltage and a carrier wave, an amplitude-spectrum extraction unit obtaining a bus current of the inverter to extract an amplitude spectrum of a specific frequency corresponding to a resonance frequency of a circuit through which the bus current flows, and a voltage-amplitude limiting unit limiting an amplitude of the vector so that the amplitude spectrum of the specific frequency becomes less than a threshold, if the amplitude spectrum of the specific frequency correlating with the voltage waveform is the threshold or more. |
| priorityDate | 2016-04-12^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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