Abstract: The disclosed distributed power supply system does not become disconnected from a grid simultaneously with others when the grid voltage falls instantaneously. In a distributed power supply device which controls an inverter circuit 10 based on a control signal obtained by comparing a predetermined carrier signal and voltage command signals of three phases and which converts DC power to AC power and supplies the AC power to a power grid of a three-phase AC power supply, fundamental wave signals of three phases are generated from a grid voltage of the three-phase AC power supply. A reference cosine wave signal is generated from the fundamental wave signals of three phases. A third harmonic signal is generated from the reference cosine wave signal and the fundamental wave signals of three phases. The three-phase fundamental wave signals and the third harmonic signal are added to generate voltage command signals of three phases.

Abstract: A distributed power supply system in which no simultaneous disconnection from the system occurs when a system voltage momentarily drops is provided. It includes an inverter circuit that converts a direct current power generated by a direct current power supply and that supplies the alternating current power to an alternating current power supply power system, and an inverter control circuit for carrying out PWM control of the inverter circuit, wherein the inverter control circuit includes a three-phase voltage command signal generation unit, that is configured of a three-phase fundamental wave signal generation unit that generates three-phase fundamental wave signals from two phase components of voltage detected by a voltage detector, and a third harmonic signal generation unit that adds together third harmonic components of respective phases, having a predetermined amplitude, generated based on the three-phase fundamental wave signals.

Abstract: The disclosed distributed power supply system does not become disconnected from a grid simultaneously with others when the grid voltage falls instantaneously. In a distributed power supply device which controls an inverter circuit 10 based on a control signal obtained by comparing a predetermined carrier signal and voltage command signals of three phases and which converts DC power to AC power and supplies the AC power to a power grid of a three-phase AC power supply, fundamental wave signals of three phases are generated from a grid voltage of the three-phase AC power supply. A reference cosine wave signal is generated from the fundamental wave signals of three phases. A third harmonic signal is generated from the reference cosine wave signal and the fundamental wave signals of three phases. The three-phase fundamental wave signals and the third harmonic signal are added to generate voltage command signals of three phases.

Abstract: A distributed power supply system in which no simultaneous disconnection from the system occurs when a system voltage momentarily drops is provided. It includes an inverter circuit that converts a direct current power generated by a direct current power supply and that supplies the alternating current power to an alternating current power supply power system, and an inverter control circuit for carrying out PWM control of the inverter circuit, wherein the inverter control circuit includes a three-phase voltage command signal generation unit, that is configured of a three-phase fundamental wave signal generation unit that generates three-phase fundamental wave signals from two phase components of voltage detected by a voltage detector, and a third harmonic signal generation unit that adds together third harmonic components of respective phases, having a predetermined amplitude, generated based on the three-phase fundamental wave signals.

Abstract: An elliptical-shaped, plate type muffler holding member made of an elastic material having the structure of: a first holding part having a first through hole into which a supporting member of an automotive body side is to be inserted, a second holding part formed with a space between the first holding part and having a second through hole into which a supporting member of a muffler side is to be inserted, a pair of side parts connecting the first holding part and the second holding part at the both sides thereof, and a center connecting part positioned in the space between the first and second holding parts and integrally connected to each side part at the central portion thereof. According to the present invention, the muffler holding member has the center connecting part made of an elastic material and therefore, tensile and compression stresses are working in the center connecting part.

Abstract: A fluid-filled elastic mount for flexible coupling of two members includes a first support member and a second support member, an elastic body interposed between the first and second support members, a closure member for partially defining a fluid chamber filled with a non-compressible fluid, a first partition device for dividing the fluid chamber into a pressure-receiving chamber and an equilibrium chamber, and a device for defining a first restricted passage for restricted fluid communication between the pressure-receiving chamber and the equilibrium chamber. The fluid-filled elastic mount further includes a second partition member having a peripheral portion secured to an intermediate portion of the elastic body.

Abstract: A fluid-filled elastic mount including an elastic body for connection of a first and a second member, a closure member secured to the second member and cooperating with at least the elastic body to define a fluid chamber filled with a non-compressible fluid, a device for dividing the fluid chamber into a first chamber on the side of the first member and a second chamber on the side of the second member, a device for defining a passage for restricted communication between the first and second chambers, and a device for accommodating a pressure difference between the first and second chambers.

Abstract: A fluid-filled elastic mount including a first support member and second support member, an elastic body interposed between the first and second support members, a closure member for partially defining a fluid chamber filled with a non-compressible fluid, a partition device for dividing the fluid chamber into a pressure-receiving chamber and an equilibrium chamber, a device for defining a restricted passage for restricted fluid communication between the pressure-receiving and equilibrium chambers, and a movable member which is supported deformably or displaceably in a load-receiving direction. The elastic mount further includes an operating device having a cup-shaped member for dividing the pressure-receiving chamber into a first section on the side of the first support member and a second section on the side of the partition device. The cup-shaped member cooperates with the elastic body to define an annular restricted portion which communicates with the first and second sections.