Mitsubishi Electric Corporation

Mitsubishi Denki Kabushiki Kaisha

Toshiba Mitsubishi-Electric Industrial Systems Corporation

Olympus Corporation

The Kansai Electric Power Co., Inc.

Olympus Medical Systems Corporation

Tmeic Corporation

Electric Power Development Co., Ltd.

Shikoku Electric Power Co., Inc.

Toshiyuki Fujii

Ryosuke Uda

Takuya Kajiyama

Shuhei Fujiwara

Kaho Mukunoki

Shinzo Tamai

Yoshiyuki Kono

Osamu Mori

Takeshi Kikuchi

Hatsuhiko Naitoh

Naohiro Toki

Yasuhiko Hosokawa

Kazuyori Tahata

Miwako Tanaka

Sadao Funahashi

Kotaro Higashi

Shigeo Hayashi

Takushi Jimichi

Taichiro Tsuchiya

Hisanori Taguchi

Osamu Nonaka

Hideo Okayama

Naoki Morishima

Andreas Beer

Akihiko Iwata

Kazuo Kato

Manabu Ichikawa

Hiroyuki Motohara

Toshiyuki Shimizu

Akihiro Matsuda

Ryota Okuyama

Ryota Onishi

Hiroaki Kagawa

Hiroki Ishihara

Yukimori Kishida

Ryoji Miyatake

Akito Nakayama

Shigeru Hokuyo

Akiko Tabuchi

Fuminori Nakamura

Junichiro Ishikawa

Hiroshi Unsai

Shinya Ishikawa

Teruyuki Nishihara

Shinya Noguchi

Shun Ogi

Daisuke Yamanaka

Hirokazu Ichihara

Koji Yamaji

Takato Toi

Masanori Yasue

Masahiro Sato

Jumpei Arai

Mayumi Imai

Masamori Nobayashi

Yukao Tanaka

Megumu Morita, Deceased

Kiyohiko Mihara

Yoshio Ishibashi

Kyosuke Yoshida

Kota Hamanaka

A training data generation device includes a computer, and a computer-readable storage medium. The computer is configured to: receive an input of an annotation for second image data obtained by imaging an observation target; reflect a result of the annotation in first image data that is related to the same observation target as the observation target of the second image data, the first image data having a different at least one of imaging mode and display mode from the second image data; and generate training data for creating an inference model by using the first image data and the result of the annotation reflected in the first image data, the first image data including image data of a plurality of images, and the second image data being image data of an image obtained by combining the plurality of images included in the first image data.

Training data generation device, recording method, and inference device

A power conversion device includes a power converter including a plurality of arms each having a plurality of converter cells cascaded to each other. A control device includes an AC current controller to control AC current flowing between the power converter and an AC circuit and a circulating current controller to control circulating current flowing between the arms of the power converter. The AC current controller reduces an effective value or amplitude value of AC current in a discharge operation mode in which a voltage of a power storage element of each converter cell is discharged, compared with in a normal operation mode. The circulating current controller increases an effective value or amplitude value of circulating current in the discharge operation mode, compared with in the normal operation mode.

Power conversion device

In an MMC-type power conversion device, a control device calculates an evaluation value representing the degree of variations in voltage of capacitors of individual converter cells. When this evaluation value exceeds a threshold value, the control device controls the converter cells as follows: (i) when current in a positive direction flows through a first converter cell with a voltage of the capacitor greater than a mean value, reducing an output time of positive voltage, (ii) when current in a negative direction flows through the first converter cell, increasing an output time of positive voltage, (iii) when current in the positive direction flows through a second converter cell with a voltage of the capacitor smaller than a mean value, increasing an output time of positive voltage, or (iv) when current in the negative direction flows through the second converter cell, reducing an output time of positive voltage.

Capacitor balancing control in an HVDC MMC

An endoscope includes: a first substrate includes: a plurality of first pads; a plurality of first cables each including an one end, the one end connected to the plurality of first pads; a plurality of second pads connected to a connection body; and a wiring adjustment circuit disposed between the plurality of first pads and the plurality of second pads. The wiring adjustment circuit is configured to electrically connect each of the plurality of first pads to each of the plurality of second pads corresponding to each of the plurality of first cables.

Endoscope and endoscope manufacturing method

A reactive power compensation device includes a power converter and a converter control unit, and compensates reactive power of an AC power grid by output reactive power of the power converter. The converter control unit includes an AC voltage detection unit and an output limit unit. The AC voltage detection unit detects voltage information of the AC power grid to which the power converter is connected. The output limit unit determines whether or not the output reactive power of the power converter needs to be limited, on the basis of the voltage information detected by the AC voltage detection unit, and in a case where the output reactive power needs to be limited, limits the output reactive power of the power converter.

Reactive power compensation device

A power conversion device includes a power converter connected between a multi-phase alternating-current circuit and a direct-current circuit, and a control device to control the power converter. The control device detects an unbalanced component indicating a voltage unbalanced component or a current unbalanced component of the alternating-current circuit and limits a magnitude of an alternating current flowing between the power converter and the alternating-current circuit based on the unbalanced component.

A power conversion system includes a plurality of power conversion devices connected to a plurality of AC systems, respectively. The power conversion devices are further connected to a common DC circuit. The power conversion system further includes a start-up device to start up each power conversion device. The start-up device selects an AC system that satisfies a defined condition relating to power supply capability from among the plurality of AC systems based on system information of the plurality of AC systems and starts up a power conversion device connected to the selected AC system.

Power conversion system

A voltage evaluation value generator receives voltage detection values of power storage elements of all of converter cells included in a power converter and generates a first voltage evaluation value of each power storage element of all of the converter cells and a second voltage evaluation value of each power storage element in a plurality of converter cells included in each of a plurality of groups obtained by classifying all of the converter cells in advance, without using a mean value of voltage detection values. A voltage macro controller uses the voltage evaluation value to calculate a control value set in common to at least the converter cells in the same group for controlling deficiency and excess of stored energy in all of the converter cells and the converter cells in each group.

A power conversion device includes a power converter including a plurality of arms each having a plurality of converter cells connected to each other in cascade. Each converter cell includes a capacitor electrically connected to input/output terminals through a plurality of switching elements. A control device performs AC current control in accordance with a deviation between a detected AC current and an AC current command value and individual voltage control in accordance with a deviation between a voltage of each individual capacitor and an individual voltage command value. The control device calculates an evaluation value indicating the degree of variations in voltage of the individual capacitors. When the evaluation value is greater than a threshold value, the control device changes control of the power converter such that arm current flowing through each of the arms increases while the AC current control and the individual voltage control are being performed.

Power conversion device with individual cell and arm balancing

A power conversion device includes a power converter connected to a power storage element, and a control device. The control device includes a generator simulating unit to generate a voltage command value, and a signal generating unit to generate a control signal for the power converter based on the voltage command value. The generator simulating unit includes a first characteristics simulating unit to generate a first command value by simulating characteristics of a first synchronous generator, a second characteristics simulating unit to generate a second command value by simulating characteristics of a second synchronous generator different from the characteristics of the first synchronous generator, an adder to perform addition of the first command value and the second command value, and a voltage command generating unit to generate the voltage command value, based on an addition result of the first command value and the second command value.

A power conversion device includes a power conversion circuit unit including a plurality of leg circuits, and a control device. Each of the leg circuits includes a plurality of first converter cells each having a capacitor and connected in series to each other and a plurality of second converter cells each having the capacitor and connected in series to each other. The plurality of first converter cells are controlled not based on a circulating current circulating between the plurality of leg circuits, and the plurality of second converter cells are controlled based on the circulating current. The control device executes control processing for increasing a current flowing through the second converter cell when a voltage at the capacitor in the second converter cell is less than a first threshold value.

Power conversion device that performs power conversion between DC circuit and AC circuit

A first voltage control circuitry controls a first representative value, i.e., an average-value corresponding value of DC capacitor voltages of all converter cells to follow an overall voltage command value. A phase balance control circuitry controls second representative values, i.e., average-value corresponding values of DC capacitor voltages of the converter cells in leg circuits for respective phases to follow the first representative value. A positive-negative balance control circuitry controls deviations of third representative values, i.e., average-value corresponding values of the DC capacitor voltages of the converter cells in the positive and negative arms of the leg circuits for respective phases to become zero between the positive and negative arms. An individual balance control circuitry controls DC capacitor voltages of all the converter cells to follow the third representative values.

An image processing apparatus includes a processor including hardware, the processor being configured to: determine whether or not an overlapping portion is present in imaging areas included in a plurality of images captured by a plurality of imagers, respectively, the plurality of imagers being are inserted into a subject to capture images of an observation target at different positions from each other; determine whether or not each of the plurality of imagers is inserted to a focal point position at which the observation target is in focus; and generate a composite image that is composed of the plurality of images when it is determined that each of the plurality of imagers is inserted to the focal point position and that the overlapping portion is present in the imaging areas.

Image processing apparatus, observation system, and observation method

A power conversion device includes a plurality of leg circuits and a control device. The control device controls an output voltage at a first converter cell, which is controlled not based on the circulating current, based on a first voltage instruction value. The control device controls an output voltage at a second converter cell using a first value based on a deviation between a circulating current and a circulating current instruction value and a second value based on a deviation between a capacitor voltage and a capacitor voltage instruction value in the second converter cell. When the capacitor voltage at the second converter cell is less than a first threshold, the control device linearly combines an auxiliary voltage instruction value including at least one of a DC component and a fundamental AC component of the AC circuit with the first value and the second value.

An image processing apparatus includes an inference part which is capable of inference by using a first inference model for finding of a specific target object and by using a second inference model for discrimination about the specific target object and a control unit to which a first picked-up image obtained under a first image pickup condition and a second picked-up image obtained under a second image pickup condition different from the first image pickup condition can be inputted and which performs control such that in a case where the first picked-up image is inputted, the inference part is caused to execute inference by using the first inference model, and in a case where the second picked-up image is inputted, the inference part is caused to execute inference by using the second inference model.

Image processing apparatus, image processing method, and endoscope apparatus

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Chiyoda-ku, Japan

Toshiyuki Fujii