Kabushiki Kaisha Yaskawa Denki

Yaskawa America, Inc.

Thomas Bryan Sasada

Eiji Yamamoto

Taisuke Katayama

Kenji Mitsuda

Hiroshi Takagi

Paul Htin

Satoru Sokuza

William (Ty) C Phillips

Michael J Sergeant

An inverter system includes an inverter apparatus and a smoothing capacitor charging-power apparatus. The inverter apparatus includes a transformer and an inverter cell. The transformer includes primary windings and secondary windings. Each of the inverter cells includes a converter circuit, a smoothing capacitor, and an inverter circuit. The converter circuit is configured to convert an intermediate alternating-current voltage to a direct-current voltage. The smoothing capacitor is configured to smooth the direct-current voltage. The inverter circuit is configured to at least partially generate a phase voltage of a variable alternating-current voltage from the direct-current voltage smoothed by the smoothing capacitor. Electric power is to be supplied from a second power supply different from a first power supply to the smoothing capacitor charging-power apparatus. The smoothing capacitor charging-power apparatus is electrically connected to the primary windings to supply initial charging power to the smoothing capacitor via the primary windings and the secondary windings.

Inverter system, inverter apparatus, and method of controlling inverter system

It is possible to easily and rapidly develop an inverter application while maintaining stable quality. Executable code modules which have been sufficiently tested are installed in an inverter. An application source code is created on a programming device by using function blocks corresponding to the executable code modules and connection lines for connecting the function blocks. The source code is complied to create a connection information table for selecting the executable code modules and specifying their execution order. The connection information table is downloaded to the inverter via communication to execute the application.

Inverter and programming device thereof

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Gurnee, IL, United States of America

Thomas Bryan Sasada