Mitsubishi Denki Kabushiki Kaisha

Konami Digital Entertainment Co., Ltd.

Hitomi Kitamura

Masaru Shimomura

Seiichi Tanaka

Tahei Katagai

A game machine includes a first operation acceptor, a register, a second operation acceptor, an output controller, and an evaluator. The first operation acceptor is configured to accept a first operation in an editing mode. The register is configured to register a display position of a reference indicator over a display screen. The second operation acceptor is configured to accept a second operation in a play mode different from the editing mode. The output controller is configured to display the reference indicator at the display position, registered by the register, over the display screen, and to move a movement object toward the reference indicator at the display position over the display screen. The evaluator is configured to evaluate the second operation based at least in part on a first timing that the movement object reaches the reference indicator and a second timing that the second operation is performed.

Game machine and game program

A reference voltage of an output terminal of a synchronous machine is set according to a reactive current output from the synchronous machine, a reference voltage of the high voltage side of a transformer, and a phase compensation transfer function to quicken attenuation of an electric power fluctuation.

Excitation control device and excitation control method

An excitation controller includes a reactive current detector for detecting a reactive current output from a synchronous machine connected, by way of a tap-changer-equipped transformer including a tap changer for changing taps of the transformer under load conditions, to a transmission system, a tap controller for setting a tap ratio of the tap-changer-equipped transformer according to an output terminal voltage of the synchronous machine, and a voltage setter for setting a reference voltage for an output voltage of the synchronous machine based on a second reference voltage of the tap-changer-equipped transformer at a side connected to the transmission system, the tap ratio set by the tap controller, and the reactive current detected by the reactive current detector. The excitation controller further includes a control unit for controlling an excitation system for exciting the synchronous machine according to the first reference voltage set by the voltage setter.

Excitation controller and excitation control method for stabilizing voltage in electric power system

An excitation controller sets an output terminal reference voltage of a synchronous machine from a reactive current output from the synchronous machine and a high side reference voltage of a transformer, and controls the field current supplied to the field winding of the synchronous machine in response to the deviation between the reference voltage and the output terminal voltage. Although a conventional excitation controller can maintain the transmission voltage on the transmission bus at a fixed value, an expensive potential detector is needed for detecting the transmission voltage on the transmission bus, which increases the manufacturing cost of the excitation controller.

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Tokyo, Japan

Hitomi Kitamura