| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1ebe8b0709d2dcdc2f9bb50cbd6983fd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ac109e0688aec36c10e58d72ff14f889
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fff6ca35df5ec61f123935000d269244
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_13f9c3d8e4177b5dcb6295a1ff6dae3d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e3a94e0b73cfd8e8442052d3db6154ce |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H02P2207-01
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H02P2203-09 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H02P23-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H02P21-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01R31-343 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H02P1-24 |
| filingDate |
2011-10-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_30e6bce37ab3d6ca9e627f453358eb05
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1f90ace512c8a2452cf01afe163b93af
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_07448df56e4936c6acb4417507c87859
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1679905d551457f15ee188df35066e13 |
| publicationDate |
2012-05-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2012058033-A1 |
| titleOfInvention |
Systems, methods, and devices for demodulating induction motor instantaneous rotor slot harmonic frequency |
| abstract |
A method and apparatus to dynamically and adaptively demodulate induction motor instantaneous rotor slot harmonic frequency for line-connected squirrel-cage polyphase induction motors. The instantaneous rotor slot harmonic frequency carries essential information on the instantaneous rotor speed. Based on a correlation between the motor's input power and its rotor slot harmonic frequency, a dynamically varying carrier frequency is computed and used in a rotor slot harmonic frequency detector. The rotor slot harmonic frequency detector is based on a superheterodyne principle. It contains a generalized linear-phase low-pass filter, whose bandwidth is estimated dynamically by a filter bandwidth estimator. The rotor slot harmonic frequency detector also includes a latency compensator, which receives the dynamically varying carrier frequency signal and synchronizes it with the output of a frequency demodulator. |
| priorityDate |
2010-10-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |