TENSION CONTROL APPARATUSA tension control apparatus controls tension of the material to be rolled when the material to be rolled passed through the final rolling stand of the finishing mill is coiled on a mandrel through pin…DRIVE·3d ago·1 min readFollowB21B3/00TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
CONTROL DEVICE AND POWER CONVERSION SYSTEMA control device includes a modulation rate calculator configured to calculate a modulation rate based on a DC voltage on a DC side an, a limiter configured to update a DC voltage command lower bound …DRIVE·Jul 10·1 min readFollowG05F1/67TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
POWER SUPPLY DEVICEAt least one first power converter of a plurality of power converters has a charging mode and a standby mode, the charging mode being a mode of converting AC power supplied from an AC power supply thr…DRIVE·Apr 24·2 min readFollowH02J9/062TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
PHASE SYNCHRONIZATION CONTROL CIRCUIT AND POWER CONVERSION DEVICE USING THE SAMEA phase synchronization control circuit includes: a phase difference detector that detects a phase difference between AC voltage and an AC signal, a frequency control circuitry that generates a first …DRIVE·Jan 2·1 min readFollowH03L7/085TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
UNINTERRUPTIBLE POWER SUPPLY SYSTEMAn uninterruptible power supply system that includes a selection unit that selects, of a plurality of uninterruptible power supply devices, a necessary number of uninterruptible power supply devices t…DRIVE·Oct 31·1 min readFollowH02J9/062TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
UNINTERRUPTIBLE POWER SUPPLY APPARATUSAn uninterruptible power supply apparatus includes a feed compensation circuit and a bypass circuit. The bypass circuit is provided in electrically parallel with the feed compensation circuit. The byp…DRIVE·Oct 10·1 min readFollowH02J9/062TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
REACTIVE POWER CONTROL DEVICE, REACTIVE POWER CONTROL METHOD, AND REACTIVE POWER CONTROL PROGRAMA reactive power control device includes a voltage acquisition unit that detects a grid voltage and a DC voltage; a modulation rate calculation unit that calculates a modulation rate; a reactive power…DRIVE·Sep 19·2 min readFollowH02J3/18TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
UNINTERRUPTIBLE POWER SUPPLY DEVICEAn uninterruptible power supply device that includes a housing having a rectangular parallelepiped shape, a plurality of power conversion units, and a bus unit for connecting the plurality of power co…DRIVE·Sep 12·1 min readFollowH02J9/062TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
UNINTERRUPTIBLE POWER SUPPLY APPARATUSAn uninterruptible power supply apparatus includes an operation unit for setting a second reference voltage, a computation unit that calculates a first reference voltage higher than the set second ref…DRIVE·Jul 18·1 min readFollowH02J9/062TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
POWER CONVERSION DEVICE, CONTROL DEVICE, AND DISTRIBUTED POWER SOURCE SYSTEMA power conversion device includes a major circuit part converting a power of a distributed power source into AC power corresponding to a power system, and a controller controlling an operation of the…DRIVE·Jun 27·1 min readFollowH02J3/01TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
SOLAR POWER GENERATION SYSTEM AND CONTROL DEVICEA solar power generation system includes solar cell panels, power conversion devices, and a control device; the plurality of power conversion devices convert direct current power supplied from the plu…DRIVE·Jun 20·1 min readFollowH02S40/32TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
UNINTERRUPTIBLE POWER SUPPLYThis uninterruptible power supply includes a switch that is turned off while an AC power supply is normal and turned on during power failure, a converter that converts AC power supplied from the AC po…DRIVE·May 23·1 min readFollowH02J9/062TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
UNINTERRUPTIBLE POWER SUPPLY APPARATUSIn the present uninterruptible power supply apparatus, in a switching period in which a bypass power feed mode is switched to an inverter power feed mode, a semiconductor switch is turned on, a first …DRIVE·Apr 11·1 min readFollowH02J9/062TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
UNINTERRUPTIBLE POWER SUPPLY SYSTEMAn uninterruptible power supply system includes: a group of electrical components that constitute the uninterruptible power supply system and are disposed in a first block of the housing; the other gr…DRIVE·Feb 22·1 min readFollowH05K7/20909TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
UNINTERRUPTIBLE POWER SUPPLYA main controller includes a first programmable device, a device, and a first selector. Each controller includes a second programmable device and a second selector. The second programmable device incl…DRIVE·Feb 15·1 min readFollowH02J9/062TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
MODULAR UNINTERRUPTIBLE POWER SUPPLY APPARATUS AND UNINTERRUPTIBLE POWER SUPPLY SYSTEMA first current detector detects an output current of a modular uninterruptible power supply apparatus. Each of a plurality of power conversion modules includes a resistive element and a second switch…DRIVE·Feb 15·2 min readFollowH02J9/062TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
POWER CONVERSION DEVICEA power conversion device is connected to a power transmission line which is connected to a generator. The power conversion device includes a frequency detector that detects a system frequency, the sy…DRIVE·Jan 25·1 min readFollowH02J3/16TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
UNINTERRUPTIBLE POWER SUPPLY APPARATUSAn AC/DC converter converts an AC voltage supplied from an AC power supply into a first DC power supply voltage. A power supply line transmits the first DC power supply voltage to a plurality of power…DRIVE·Jan 4·1 min readFollowH02J9/061TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
UNINTERRUPTIBLE POWER SUPPLY DEVICE AND UNINTERRUPTIBLE POWER SUPPLY SYSTEMA fan unit is disposed on an upper surface of a housing, and includes a fan, a frame member, and a support member. The frame member is disposed to surround an outer circumference of an opening provide…DRIVE·Dec 21·2 min readFollowH02J9/06TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
POWER SUPPLY DEVICEAn AC switch that includes a semiconductor switch and a snubber circuit connected in parallel between a first terminal connected to an AC power supply via a circuit breaker and a second terminal conne…DRIVE·Nov 2·2 min readFollowH01H9/541TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
POWER CONVERSION DEVICEA partition member is disposed in a space portion between a rear surface of a housing and outer surfaces of a plurality of units. A first partition portion is disposed in a boundary portion between tw…DRIVE·Oct 19·1 min readFollowH05K7/20909TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
POWER CONVERTERA power converter includes a power conversion circuit including a direct-current terminal connected to a solar cell panel, and an alternating-current terminal connected to an alternating-current power…DRIVE·Oct 5·2 min readFollowH02J3/381TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
UNINTERRUPTIBLE POWER SUPPLYA bidirectional chopper selectively performs a charging operation and a discharging operation, the charging operation being an operation in which a part of DC power generated by a converter is stored …DRIVE·Sep 28·1 min readFollowH02J9/06TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
UNINTERRUPTIBLE POWER SUPPLY APPARATUSIn an uninterruptible power supply apparatus, AC current, which includes a feedback component having a value corresponding to deviation between terminal-to-terminal voltage of a capacitor and referenc…DRIVE·Aug 31·1 min readFollowH02J9/062TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
FLICKER PREVENTION DEVICE AND FLICKER PREVENTION CONTROL METHODA frequency detector detects a system frequency from an AC voltage on an AC power line to which a power conditioner performing system interconnection of a distributed power supply is connected. A powe…DRIVE·Aug 31·1 min readFollowH02J3/002TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
BUS CONNECTION SYSTEMA bus connection system according to an embodiment of the invention includes a control device that is connected to one end of a first bus and operates as a first node, and a bus connection device that…DRIVE·Aug 17·1 min readFollowG06F13/36TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
DISTRIBUTED-POWER-SUPPLY POWER CONVERSION SYSTEMA distributed-power-supply power conversion system includes a plurality of power inverters configured to invert DC power to AC power; and a control device configured to select at least one power inver…DRIVE·Aug 17·1 min readFollowH02J3/38TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
POWER CONDITIONING SUBSYSTEMA power conditioning subsystem (PCS) includes an inverter circuit configured to mutually covert direct current (DC) power of a storage battery and alternating current (AC) power, a command value acqui…DRIVE·Jul 27·1 min readFollowH01M10/44TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
UNINTERRUPTIBLE POWER SUPPLY APPARATUSAn uninterruptible power supply apparatus having a plurality of power conversion modules and a bypass module connected in parallel between an AC power supply and a load. Each of the power conversion m…DRIVE·Jun 29·1 min readFollowH02J9/062TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
UNINTERRUPTIBLE POWER SUPPLY DEVICEAn uninterruptible power supply device includes a housing having a rectangular parallelepiped shape, a plurality of units vertically stacked and accommodated in housing, and a fan unit having a plural…DRIVE·Jun 22·1 min readFollowH02J9/062TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
POWER STORAGE SYSTEM AND CONTROL DEVICEA power storage system includes multiple power storage devices, multiple power conversion devices, and a control device; the multiple power storage devices are capable of discharging and charging DC p…DRIVE·Jun 15·1 min readFollowH02J3/38TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
POWER CONVERSION DEVICEA power conversion device including a power conversion circuit, an AC filter circuit, and a calculation unit. The power conversion circuit converts DC input power from a DC power supply to output a fi…DRIVE·May 18·2 min readFollowH02M7/48TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
UNINTERRUPTIBLE POWER SUPPLY SYSTEMA plurality of UPSs are connected in parallel between an AC power supply and a load. The UPSs each include a first switch connected between the AC power supply and an AC node. During the first power f…DRIVE·May 4·2 min readFollowH02J9/062TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
POWER SUPPLY APPARATUSAn uninterruptible power supply includes a plurality of vacuum circuit breakers and a bypass circuit connected in series between a commercial AC power supply and a load, a control device that turns on…DRIVE·Feb 9·1 min readFollowH02J9/062TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
POWER CONVERSION DEVICEAn uninterruptible power supply device includes a bidirectional chopper that converts a first DC voltage supplied from a battery into a second DC voltage and supplies the second DC voltage to an inver…DRIVE·Dec 15·1 min readFollowH02J9/062TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
POWER CONVERTERAn uninterruptible power supply apparatus includes: an electromagnetic contactor including a first terminal that receives a first AC voltage supplied from an AC power supply and a second terminal conn…DRIVE·Dec 15·1 min readFollowH02J9/062TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
POWER FEEDING DEVICE AND POWER FEEDING SYSTEM INCLUDING THE SAMEA DC power feeding device includes a power feed line connected to a DC load, a first DC/DC converter provided between a solar battery and the power feed line, and a second DC/DC converter provided bet…DRIVE·Dec 1·2 min readFollowH02J3/007TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
CONTROLLER FOR POWER CONVERSION SYSTEMA controller for a power conversion system includes a determination unit configured to determine whether a current time is in nighttime in an environment of a power converter that is connected to one …DRIVE·Dec 1·1 min readFollowH02M1/327TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
POWER CONVERSION APPARATUS AND POWER CONVERSION SYSTEMA power conversion system includes plural power conversion apparatuses and a server connected to each of the plural power conversion apparatuses. Each of the plural power conversion apparatuses includ…DRIVE·Oct 6·1 min readFollowH02J3/18TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
POWER SUPPLY DEVICEA power supply device includes an inverter, a voltage converter, a capacitor, a current detector, a counter, and a controller. The inverter converts DC power into AC power and supplies the converted A…DRIVE·Jul 28·2 min readFollowH02J9/062TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
