| ReturnTo Theme-Group-Choice | Onelevelup |
| 5H572 | Control of multiple motors | |
| H02P5/00 -5/753 | ||
| H02P5/00-5/753 | AA | AA00 APPLICATIONS AND USES |
AA01 | AA02 | AA03 | AA04 | AA05 | AA06 | AA07 | AA08 | AA09 | AA10 |
| . Electric vehicles | . Electric automobiles | . Electrical equipment in automobiles | . Winding | . Rolling mills (e.g., for steel and iron) | . Papermaking machines or printing presses | . Pumps (e.g., water supply or sewage) | . Cargo-handling equipment (e.g., cranes, conveyors, or winches) | . Elevators or escalators | . Air blowers | |||
| AA11 | AA12 | AA13 | AA14 | AA20 | ||||||||
| . Compressors (e.g., air conditioning) | . Recording and reproducing devices (e.g., video-tape recorders [VTR], compact disks [CD], or laser disks [LD]) | . Copiers | . Machine tools, manufacturing machinery, or robots | . Others | ||||||||
| BB | BB00 PURPOSE |
BB01 | BB02 | BB03 | BB04 | BB05 | BB06 | BB07 | BB08 | BB09 | BB10 | |
| . Improved power-factor or reactive power | . Improved efficiency or energy conservation | . Miniaturization | . Reduction of noise or vibration (i.e., including torque ripple) | . Reduction of electrical noise | . Improved responsiveness | . Improved reliability | . Maintenance or testing | . Switching of power source ratings | . Others | |||
| CC | CC00 POWER SOURCES |
CC01 | CC02 | CC03 | CC04 | CC05 | CC06 | CC08 | CC09 | CC10 | ||
| . Use of direct current (DC) power sources | . . Use of batteries or cells | . . . Use of solar cells | . . . Use of secondary batteries or cells | . Use of alternating current (AC) power sources | . Use of generators | . Use of multiple power sources | . . Switching of the power source | . Others | ||||
| DD | DD00 TYPES OF MOTORS |
DD01 | DD02 | DD03 | DD04 | DD05 | DD06 | DD07 | DD08 | DD09 | DD10 | |
| . All types of motors | . Alternating current (AC) motors | . . Induction motors | . . . Single-phase induction motors | . . Synchronous motors (including hysteresis motors) | . . Alternating current (AC) commutator motors | . Direct current (DC) motors | . Stepping motors | . Motors without commutators | . Others | |||
| EE | EE00 OPERATING METHODS OF MOTORS |
EE01 | EE02 | EE03 | EE04 | EE05 | EE06 | EE07 | EE08 | EE09 | EE10 | |
| . Synchronous operation | . . Use of power selsyns | . Cooperative operation | . Connected operation | . Operating by control of the number of motors | . Operations to coordinate speed | . Operation by providing a constant ratio for speed of rotation | . Intermittent operation | . Operation with load balance control | . Others | |||
| FF | FF00 AREAS TO BE CONTROLLED |
FF01 | FF02 | FF03 | FF04 | FF05 | FF06 | FF07 | FF08 | FF09 | FF10 | |
| . Starting or acceleration | . . Starting together | . Deceleration or braking | . . Generative braking or direct current (DC) braking | . . Regenerative braking | . Stopping | . Low speeds | . High speeds | . Switching direction of rotation | . Others | |||
| GG | GG00 CONTROL SYSTEMS |
GG01 | GG02 | GG03 | GG04 | GG05 | GG06 | GG07 | GG08 | GG10 | ||
| . Position feedback | . Speed feedback | . . Feedback of detected load-values | . Current feedback | . Voltage feedback | . Phase control (e.g., phase-locked loop [PLL] control) | . Switching of the control system | . Adjustment of loop gain | . Others | ||||
| HA | HA00 MAIN STRUCTURAL ELEMENTS OF DRIVE-CONTROL AND POWER-CONVERSION CIRCUITS |
HA01 | HA02 | HA03 | HA04 | HA05 | HA07 | HA08 | HA09 | HA10 | ||
| . Resistors | . Reactors | . Transformers | . Switches | . Relays | . Semiconductor elements | . . Transistors | . . . Field-effect transistors (FET) | . . . Insulated gate bipolar transistors (IGBT) | ||||
| HA11 | HA12 | HA13 | HA14 | HA15 | HA20 | |||||||
| . . Thyristors | . . . Static induction thyristors | . . . Gate turn-off (GTO) thyristors | . . . Triode alternating current switches (TRIAC) | . . . Reverse thyristors | . Other elements | |||||||
| HB | HB00 CONTROL METHODS FOR MOTORS |
HB01 | HB02 | HB03 | HB04 | HB05 | HB06 | HB07 | HB08 | HB09 | HB10 | |
| . Methods for controlling alternating current (AC) motors | . . Control of the supply voltage | . . Control of secondary current | . . Control by changing the number of poles | . . Control by control of secondary excitation | . . Control of the primary frequency | . . . Use of inverter-control devices | . . . . Use of vector-control devices | . . . . Use of pulse-width modulation (PWM) control devices | . . . Use of cycloconverter-control devices | |||
| HB11 | HB12 | HB13 | HB14 | HB15 | HB16 | HB18 | HB20 | |||||
| . Control methods for direct current (DC) machines | . . Control of the armature supply voltage only | . . Control of the field current only | . . Control of the armature supply voltage and field current | . . Control using chopper devices | . . Control using static Ward-Leonard devices | . Combination of different control devices | . Others | |||||
| HC | HC00 CONNECTION OF MOTORS AND ELECTRIC POWER CONVERTERS |
HC01 | HC02 | HC03 | HC04 | HC05 | HC06 | HC07 | HC08 | HC09 | HC10 | |
| . Parallel motor connections | . Serial motor connections | . Serial-parallel switching of motors | . Parallel power-converter connections | . Serial power-converter connections | . Switching power-converter connections | . One motor is connected to one power converter | . Multiple motors are connected to one power converter | . Multiple motors are connected to multiple power converters | . Others | |||
| JJ | JJ00 STRUCTURAL MEANS OF CALCULATION UNITS |
JJ01 | JJ02 | JJ03 | JJ04 | JJ06 | JJ07 | JJ08 | ||||
| . Use of analog elements only | . Use of digital elements | . . Use of computers | . Estimation, prediction, or simulation | . Sample-and-hold calculations | . Use of hysteresis elements | . Use of dead zones | ||||||
| JJ11 | JJ12 | JJ13 | JJ14 | JJ15 | JJ16 | JJ17 | JJ18 | JJ19 | ||||
| . Calculation circuit elements | . . Sawtooth wave-generating circuits (e.g., triangular wave-generating circuits) | . . Counter circuits | . . Latch circuits | . . Circuits that convert from frequency to voltage or from voltage to frequency | . . Circuits that convert values from digital to analog or from analog to digital | . . Memories | . . Timers | . . Multivibrators | ||||
| JJ22 | JJ23 | JJ24 | JJ25 | JJ26 | JJ27 | JJ28 | JJ30 | |||||
| . . Integrating circuits | . . Differentiating circuits | . . Proportional integrating circuits | . . Compensation circuits or correction circuits | . . Smoothing circuits (e.g., filter circuits) | . . Resonating circuits | . . Limiting circuits (e.g., limiters) | . Others | |||||
| KK | KK00 SETTING UNITS |
KK01 | KK03 | KK04 | KK05 | KK07 | KK08 | KK10 | ||||
| . Analog setting | . Digital setting | . . Use of computers | . . . Use of memories | . Use of signals from other motors as settings | . Use of pattern commands | . Others | ||||||
| LL | LL00 DETECTION MEANS AND VARIABLES TO BE DETECTED |
LL01 | LL02 | LL03 | LL04 | LL06 | LL07 | LL08 | LL09 | LL10 | ||
| . Detection of speed | . . Detection by analog values | . . . Use of tracking gain (TG) | . . . Use of selsyns | . . Detection by digital values | . . . Use of pulse encoders | . . . . Optical pulse encoders | . . . . Magnetic pulse encoders | . . Use of Hall elements | ||||
| LL12 | LL13 | LL14 | LL15 | LL16 | LL20 | |||||||
| . . Detection without using speed sensors | . . . Detection of electrical variables | . . . . Detection of current | . . . . Detection of voltage | . . . . Detection of the counter-electromotive voltage | . . Provision of multiple speed-detection means | |||||||
| LL21 | LL22 | LL23 | LL24 | LL25 | LL26 | LL27 | LL28 | LL29 | LL30 | |||
| . Detection of electrical variables | . . Current | . . . Secondary current | . . Voltage | . . Counter-electromotive voltage | . . Power-factor | . Detection of magnetic variables (e.g., magnetic flux) | . Direction of rotation | . Torque | . Phase | |||
| LL31 | LL32 | LL33 | LL34 | LL35 | LL36 | LL37 | LL38 | LL39 | LL40 | |||
| . Position | . . Rotor position | . . Position of controlled articles | . Temperature | . . Temperature of the control unit | . . Motor temperature | . Humidity | . Tension | . Pressure | . Flow rate | |||
| LL41 | LL42 | LL43 | LL44 | LL45 | LL46 | LL47 | LL48 | LL49 | LL50 | |||
| . Amount of winding | . Vibration | . Electrical or physical load | . Synchronization | . Abnormalities | . . Abnormalities in the control unit | . . Motor abnormalities | . . Sensor abnormalities | . Resolvers | . Others | |||
| MM | MM00 PROTECTION, COMPENSATION, MONITORING, AND INDICATION |
MM01 | MM02 | MM03 | MM04 | MM05 | MM06 | MM09 | ||||
| . Protection | . . Overcurrent | . . Overvoltage | . . Overloads | . . Excessive speed or drops in speed | . . Overheating | . Monitoring or indication | ||||||
| MM11 | MM12 | MM13 | MM14 | MM16 | MM17 | MM18 | MM20 | |||||
| . Back-up and redundancy | . Temperature compensation | . Compensation or protection from momentary power failures | . Fluctuations in the voltage of the power source | . Compensation for detection errors | . . Use of shaft eccentricity or shaft twisting | . . Use of rotating sensors | . Others | |||||
| PP | PP00 OTHER STRUCTURES |
PP01 | PP02 | PP03 | PP10 | |||||||
| . Transmission devices for motors or loads (e.g., clutches or gears) | . Wiring, arrangement, or mounting of control devices | . Use of hot couplers | . Others |