In a power converter, a DC bus is supplied with a DC power from a voltage conversion circuit for regulating a voltage of a power output from a DC power supply, a voltage of the DC power being regulated by the voltage conversion circuit. An inverter converts a DC power on the DC bus into an AC power and supplies the AC power as converted to a power system. A controller controls the inverter. When it is necessary to suppress an output, the controller suppresses the AC power supplied by the inverter to increase a voltage on the DC bus.

The invention relates to a system for generating electric power, comprising: an alternator (1) for coupling with a drive system (7), supplying an AC voltage to an output bus (10); a reversible AC/DC converter (2) in which the AC bus (6) is connected to the output bus (10) of the alternator (1); an electricity-storage element (3) connected to the DC bus (9) of the converter (2); a controller (4) arranged to react to a transient state of load-shedding or charging impact by controlling the converter (2) so as to collect energy on the output bus (10) of the alternator (2) and to store same in the storage element (3) in the case of load-shedding, and to collect energy in the storage element (3) and to inject same into the output bus (10) in the case of charging impact, the converter (2) being controlled so as to inject currents to compensate for harmonic currents into the AC bus (10) of the alternator (1).

The invention relates to a system for generating electric power, comprising: an alternator (1) for coupling with a drive system (7), supplying an AC voltage to an output bus (10); a reversible AC/DC converter (2) in which the AC bus (6) is connected to the output bus (10) of the alternator (1); an electricity-storage element (3) connected to the DC bus (9) of the converter (2); a controller (4) arranged to react to a transient state of load-shedding or charging impact by controlling the converter (2) so as to collect energy on the output bus (10) of the alternator (2) and to store same in the storage element (3) in the case of load-shedding, and to collect energy in the storage element (3) and to inject same into the output bus (10) in the case of charging impact, the converter (2) being controlled so as to inject currents to compensate for harmonic currents into the AC bus (10) of the alternator (1).

A power converter includes: a power conversion circuit; and an electronic control unit configured to output plural control commands for a first switching element and a second switching element to the power conversion circuit. The electronic control unit is configured to output a first drive command, a second drive command, a first drive stop command, and a second drive stop command. The first drive command is a command to turn on the first switching element. The second drive command is a command to turn on the second switching element. The first drive stop command is a command to turn off the first switching element regardless of presence or absence of the first drive command. The second drive stop command is a command to turn off the second switching element regardless of presence or absence of the second drive command.

A power converter includes: a power conversion circuit; and an electronic control unit configured to output plural control commands for a first switching element and a second switching element to the power conversion circuit. The electronic control unit is configured to output a first drive command, a second drive command, a first drive stop command, and a second drive stop command. The first drive command is a command to turn on the first switching element. The second drive command is a command to turn on the second switching element. The first drive stop command is a command to turn off the first switching element regardless of presence or absence of the first drive command. The second drive stop command is a command to turn off the second switching element regardless of presence or absence of the second drive command.

A power converter includes: a power conversion circuit; and an electronic control unit configured to output plural control commands for a first switching element and a second switching element to the power conversion circuit. The electronic control unit is configured to output a first drive command, a second drive command, a first drive stop command, and a second drive stop command. The first drive command is a command to turn on the first switching element. The second drive command is a command to turn on the second switching element. The first drive stop command is a command to turn off the first switching element regardless of presence or absence of the first drive command. The second drive stop command is a command to turn off the second switching element regardless of presence or absence of the second drive command.

A power converter includes: a power conversion circuit; and an electronic control unit configured to output plural control commands for a first switching element and a second switching element to the power conversion circuit. The electronic control unit is configured to output a first drive command, a second drive command, a first drive stop command, and a second drive stop command. The first drive command is a command to turn on the first switching element. The second drive command is a command to turn on the second switching element. The first drive stop command is a command to turn off the first switching element regardless of presence or absence of the first drive command. The second drive stop command is a command to turn off the second switching element regardless of presence or absence of the second drive command.

A voltage transform part transforms the direct-current power input to an input part. A first input and output part outputs the transformed direct-current power to a battery unit and to which direct-current power is input from the battery unit. A conversion part converts the direct-current power input to the input part into alternating-current power. A second input and output part outputs the alternating-current power to a power system or a load and to which an alternating-current power is input from the power system. The conversion part converts the alternating-current power input to the second input and output part into direct-current power. The second voltage transform part transforms the direct-current power converted by the conversion part and transforms the direct-current power input to the first input and output part. The conversion part converts the direct-current power transformed by the second voltage transform part into alternating-current power.

A power storage power conditioner includes an input part, a voltage-transforming part, a first input-output part, a converting part and a second input-output part. The voltage-transforming part transforms the voltage of DC power from the input part and the converting part into a second predetermined voltage. The first input-output part outputs the DC power of the voltage-transforming part to a battery unit, and inputs DC power from the battery unit. The voltage-transforming part transforms a voltage of the DC power from the first input-output part into a third predetermined voltage. The converting part converts the DC power from the input part and the voltage-transforming part into AC power. The second input-output part outputs the AC power to a power system or a load, and inputs AC power from the power system. The converting part converts the AC power from the second input-output part into DC power.

A power storage power conditioner includes an input part, a voltage-transforming part, a first input-output part, a converting part and a second input-output part. The voltage-transforming part transforms the voltage of DC power from the input part and the converting part into a second predetermined voltage. The first input-output part outputs the DC power of the voltage-transforming part to a battery unit, and inputs DC power from the battery unit. The voltage-transforming part transforms a voltage of the DC power from the first input-output part into a third predetermined voltage. The converting part converts the DC power from the input part and the voltage-transforming part into AC power. The second input-output part outputs the AC power to a power system or a load, and inputs AC power from the power system. The converting part converts the AC power from the second input-output part into DC power.