摘要:
A control apparatus for an AC rotary machine, including first voltage command calculation means for calculating first voltage commands from current commands, an angular frequency, and constant set values of the AC rotary machine, second voltage command calculation means for calculating second voltage commands on the basis of difference currents between the current commands and current detection values, so that the difference currents may converge into zero, third voltage command calculation means for calculating third voltage commands by adding the first voltage commands and the second voltage commands, voltage application means for applying voltages to the AC rotary machine on the basis of the third voltage commands, and constant measurement means for calculating the constant set values on the basis of the second voltage commands.
摘要:
An image forming apparatus includes an optical scanning unit having a light transmitting portion, the cleaning mechanism that includes a cleaning rod with a pad at a front end portion thereof to be capable of cleaning a surface of the light transmitting portion by sliding on the light transmitting portion, and a retaining mechanism that retains the cleaning rod slidably in a longitudinal direction of the light transmitting portion, and that retains the pad positioned above the optical scanning unit and spaced apart from the optical scanning unit in a state where the cleaning rod is at an insertion completed position.
摘要:
A sheet straightening unit including a device for pushing a depressing roll against an endless belt, so that a curled sheet is straightened when passing between the endless belt and the depressing roll pushed against the latter. The depressing roll is provided with an amount-of-depression adjusting mechanism which includes a cam member and a cam follower member engaged with the former, in such a manner that the cam member is turned according to the kind and image density of the curled sheet, thereby to most suitably determine the extent to which depressing roll is pushed against the endless belt.
摘要:
A synchronous machine control device is provided with a magnet state outputter that estimates a magnetic flux of a permanent magnet forming the magnetic field of a synchronous machine. In a magnet state correction value calculation mode, the magnet state outputter calculates a magnet state correction value. In a magnet state estimation mode, the magnet state outputter obtains, from a magnet state estimation device, a magnetic flux estimation value of the permanent magnet under a given condition of a magnetic flux command and a δ-axis current command and controls a magnet state corrector to correct the magnetic flux estimation value of the permanent magnet obtained by the magnet state estimation device, by use of the magnet state correction value.
摘要:
An electric power conversion apparatus includes a converter 1 for rectifying ac electric power, a series-connected set, of capacitors 2A and 2B, connected to the dc side of the converter, an inverter 3 for, by setting one end of the series-connected capacitor set to a high-potential level, the other end of the set to a low-potential level, and a connection point between the capacitors to a medium-potential level, selecting any one of the levels and outputting three-phase ac, an inverter control unit 4 for controlling the inverter 3, and a voltage measurement device 8 for measuring a capacitor voltage Vdc as a voltage between both ends of the series-connected set, of the capacitors 2A and 2B; and the inverter control unit 4 further includes a beatless control unit 21 for controlling a modulation factor γ in response to the capacitor voltage Vdc, and a frequency fixing unit 22 for fixing to a command value the frequency of an ac voltage outputted from the inverter 3.
摘要:
A power converter includes: a converter (1) which rectifies an AC power; capacitor series assemblies (2A, 2B) connected to the DC side of the converter; an inverter (3) which assumes that one end of the capacitor series assemblies is at a high potential, the other end is at a low potential, and a series connection point is at an intermediate potential and selects one of the high potential, the intermediate potential, and the low potential for output of a 3-phase AC; an inverter control unit (4) which controls the inverter (3); and a voltage measuring device (8) which measures a capacitor voltage Vdc as a voltage between the both ends of the capacitor series assemblies (2A, 2B). The inverter control unit (4) has a beatless control unit (21) which controls the modulation ratio γ in accordance with a capacitor voltage Vdc and a frequency fixation unit (22) which fixes the frequency of the AC voltage outputted by the inverter (3) to an instruction value.
摘要:
This game system includes a plurality of terminals each of which has a display unit and an input unit, and a server connected to the terminals through communication lines. The game system executes a game performing the fighting between a plurality of characters controlled by the terminals operated by a plurality of players. The game system comprises a position data storage unit storing position data representing the positions of characters disposed in the game area where a plurality of characters operated by each player can be disposed; a position renewal unit renewing the position data stored in the position data storage unit, based on the input operation of each player using by the input unit; a first display control unit displaying a game area image representing the game area where characters are disposed based on the position data stored in the position data storage unit in the first display area owned by the display unit; and a second display control unit displaying the fighting image representing the fighting between the characters in the second display area owned by the display unit when the fighting between the characters is performed in the game area.
摘要:
A game system which provides a game system which can rouse competitive spirits of players and create strategic characteristics to the way of carrying out a game. Specifically, the present invention provides a game system in which a plurality of terminal devices are connected to a server via communication lines, and in which a game can be executed by each of a plurality of players operating each of the terminal devices, the game system comprising: level storing means for storing a level value of a player; level setting means for setting a predetermined level for the player to store it as the level value in the level storing means; condition setting means for setting a condition in a game for the player; condition achievement determination means for determining whether or not the player clears the condition; and game result determination means for determining a game result on the basis of, when the condition achievement determination means determines that the player clears a condition, the condition cleared by the player, and the level value of the player which is stored in the level storing means.
摘要:
A flight strips management system comprises a plurality of information processing devices, each information processing as management information on of aircraft control information, flight information, spot allocation information, gate allocation information, servicing information, or passenger information etc and a flight strips management device that reads management information from the information processing devices, compiles flight strips information representing aircraft movement based on the read management information, and stores the compiled flight strips information.
摘要:
A synchronous machine control means is provided with a magnet state output means (7) that estimates the magnetic flux of a permanent magnet forming the magnetic field of a synchronous machine (1); in a magnet state correction value calculation mode, the magnet state output means (7) calculates a magnet state correction value (Δφm1); in a magnet state estimation mode, the magnet state output means (7) is provided with a magnet stated estimation device (8) that calculates a magnetic flux estimation value (φm1′) of the permanent magnet under the given condition of a magnetic flux command (φ1) and a δ-axis current command (i1) and a magnet state correction means (9) that corrects the magnetic flux estimation value (φm1′) of the permanent magnet obtained by the magnet stated estimation device (8), by use of the magnet state correction value (Δφm1).