PATENT CLAIM ANALYSIS

Application Number: 16088944
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-05
Patent Classification: ["318", "400020"]

Abstract:
In order to achieve a power conversion device with which a motor can be stably driven, a power conversion device is provided with: an inverter, which converts supplied DC voltage to an AC output voltage and supplies the AC output voltage to windings, and which, in accordance with the DC voltage, changes the saturation level at which the output voltage is saturated, in order to drive a motor equipped with a stator having the windings and a rotor having permanent magnets; and a controller which, when the output voltage is lower than the saturation level, increases the output current of the inverter such that a magnetic flux that weakens or strengthens the magnetic flux generated by the permanent magnets is generated in the windings. An air conditioner including the power conversion device is also disclosed.

Claim (Index 2):
The power conversion device according to  claim 1 , wherein the controller comprises: when in a coordinate system that rotates at a rotation speed of an electrical angle of the motor, a d-axis is set to a direction of a magnetic flux generated by the permanent magnets and a q-axis is set to an axis orthogonal with the d-axis,\n a q-axis current command unit configured to output a q-axis current command value, which is a command value for a q-axis component of the output current, based on a frequency command value; and a d-axis current command unit configured to output a d-axis current command value, which is a command value for a d-axis component of the output current, based on the frequency command value, wherein the d-axis current command unit controls, when the output voltage is lower than the saturation level, the d-axis current command value to generate in the windings a magnetic flux in such a direction as to weaken the magnetic flux generated by the permanent magnets.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 97.0
- Lexical Diversity: 2.13043
- Patent Class: 318.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15507885', '13733433', '11679271', '14073146', '13119893']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7067308884239205
- 35 USC 102 Novelty (BERT): 0.4815245197969399
- Combined Prediction Score: 0.6842102515612225
- Mean Citation Score: 230.78688
- Max Citation Score: 233.08714
- Similarity Product: 195.46123032476785

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test