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JP2012175871A |
To provide a motor controller capable of performing consumption processing on regenerative electric power using a small-scale, low-capacity regenerative resistor.The motor controller includes: a converter circuit which generates a bus vo...
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JP5016674B2 |
In a motor control circuit which controls energization of a coil on the basis of a detection result of a rotor position, the control is performed so that the continuous rotation of the rotor due to its own inertia is suppressed and stopp...
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JP5019175B2 |
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JP2012520056A |
The invention concerns a method for the operation of an underwater powerplant comprising a water turbine for purposes of absorbing kinetic energy from a flow of water; an electrical generator with converter feed, whose generator rotor is...
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JP2012165612A |
To provide a DC motor ceiling fan which does not require positioning of a rotor at the time of start-up and surely rotates a motor in a desired direction so as to prevent reverse rotation from giving an uneasy feeling to a user.A DC moto...
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JP5008051B2 |
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JP5003723B2 |
To provide an electric actuator system that reduces the frequency of initialization settings. A rotary angle detective means 220 is used to detect a pulse signal generated according to a rotary angle of an electric motor 110 and to set a...
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JP4995944B2 |
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JP4997825B2 |
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JP4993389B2 |
Provided is a regenerative switched reluctance motor driving system which allows a motor to have a reduced size and weight and an increased efficiency as well as improved energy recovery efficiency at the time of regenerative braking wit...
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JP4989591B2 |
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JP4985805B2 |
The robot apparatus of the present invention autonomously makes natural motions. The robot apparatus is provided with a control means 32, which has a feeling/instinct model that causes a motion and changes the feeling/instinct model base...
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JP4986139B2 |
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JP4953006B2 |
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JP4945313B2 |
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JP4935337B2 |
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JP4937356B2 |
An electric vacuum cleaner which can detect the occurrence of a spark by an inexpensive structure and prevents smoking and ignition due to abnormal overheat in an end stage of life. The electric vacuum cleaner comprises a current detecti...
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JP4927614B2 |
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JP4924711B2 |
There are provided a smoothing capacitor (71) for storing an induced electromotive force generated by a three-phase induction motor (5), a regenerative transistor (81 to 86) for switching a terminal voltage of the smoothing capacitor to ...
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JP4922749B2 |
A fan system includes a stator magnetic pole, a driving unit and a real-time stopping unit. The driving unit is coupled with the stator magnetic pole and controls a polarity change of the stator magnetic pole in accordance with a driving...
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JP2012078718A |
To save data in a memory and to set a state so that an accident does not occur by using regenerative power in accordance with slowing-down revolution of a motor when power supply from the outside is interrupted.When supply of AC power fr...
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JP4917680B1 |
During motor acceleration control period that starts at time T1, if power supply output or supply current exceeds a predetermined level at time T2, PWM control in a PWM converter is turned off until a deceleration control period of T3 to...
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JP4912688B2 |
The method involves comparing a voltage value measured on a DC bus with a determined limiting value by a comparator (10). Slope of an internal ramp (R) is forced to zero value when the voltage value is higher than the limiting value, in ...
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JP4912516B2 |
Included are a power converter 2 for driving an induction machine 1, a control unit 40 for controlling the power converter 2, and a brake force command computing unit 6 for computing a brake force command. The control unit 40 includes a ...
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JP2012055981A |
To stop a servo motor immediately with a dynamic brake and a mechanical brake, while controlling a load on a connection part between the servo motor and a reducer, when an angle sensor falls in an abnormality.When the abnormality of the ...
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JP4902514B2 |
To detect resistor disconnection without enlarging a circuit scale. Output of a main power generator 2 is converted into a DC current by a commutator 3 and a smoothing capacitor 4 so as to drive an AC electric motor 6 by converting the D...
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JP2012052320A |
To provide an electric construction machine capable of starting an electric motor even when a temporary step-down occurs in an external power source when starting the electric motor.The electric construction machine includes an electric ...
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JP4898275B2 |
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JP2012050165A |
To prevent damage of a stator winding of a motor even when seizure occurs in a contact of a motor drive switch.In the motor drive switch, in starting operation of the motor, timing when a first contact 21 is switched to a terminal (3) on...
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JP2012050249A |
To provide a motor driving device capable of surely reducing a deceleration time within a variable speed operation range in a simple configuration.The motor driving device comprises: an AC motor 2 that drives a machine with square torque...
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JP4893075B2 |
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JP2012041905A |
To provide a fan motor used for an all air system (duct system) air conditioner and useful for energy saving.The fan motor 1 is provided with a shaft 21 connected to the fan 11a of a blower 11 and a motor body 22 for rotatively driving t...
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JP4884534B2 |
An electric power processing device is provided with an induction heating device (9) that is comprised of an induction heater driving inverter (16) with which an electric power source rectifying capacitor (2) connected in parallel with i...
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JP3173826U |
To provide an electric braking device for a machine for processing a printed material, which realizes a braking process as uniform as possible when an electric braking operation via a rectifier of a drive motor is impossible. An electric...
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JP4879237B2 |
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JP4876162B2 |
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JP4865054B2 |
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JP4868822B2 |
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JP2012016274A |
To provide a motor drive controller capable of protecting itself from an electromotive force of a motor generated by the rotation of a fan rotated by external wind, increasing the number of turns of a motor coil, and suppressing a motor ...
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JP4856508B2 |
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JP4850951B2 |
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JP4845881B2 |
An electromagnetic brake device (3) is assembled to a rear end section of a small-sized motor (1). The electromagnetic brake device (3) has a rotating disc (11) fixed to a motor rotation shaft (4), a sliding disc (12) slidable in an axia...
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JP4847108B2 |
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JP2011259577A |
To lower a rotational speed of a turbine rotating by inertia as rapidly as possible.This power generation system includes: a main generator 10 that generates electric power to be transmitted to a power system; an auxiliary generator 40 t...
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JP2011259569A |
To provide a motor control system equipped with an invertor and a smoothing capacitor connected to a DC power, and an AC motor driven by the invertor preventing an unintended rotation of the AC motor when the AC motor consumes electric e...
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JP2011244557A |
To provide a power conversion device consisting of multiple inverters without power regeneration capability which can generate a prescribed braking torque for decelerating an AC motor in both cases where the AC motor rotates at a high sp...
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JP4826946B2 |
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JP4822756B2 |
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JP4817084B2 |
A motor controller (13) and a safety module (14) comprise a motor control circuit part (31) configured to perform the power supply control to a motor (2) in accordance with a predetermined driving control command, a function of selecting...
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JP4818847B2 |
A controller is operable in one of a plurality of operational modes, which include an estimated temperature computation performing mode for performing computing of an estimated temperature of the motor and an estimated temperature comput...
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