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US 12,700,734 B2Granted
Converter, method of installing a power system, and use of a converter
AssigneeHitachi Energy Ltd
InventorUgur Yasa
Life of this patent
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Abstract
A converter comprises a housing having a mounting structure for mounting the converter to a DIN rail. A converter circuit is disposed within the housing and comprises one or several wide-bandgap semiconductor based active switching element(s). The converter circuit is adapted to perform a total harmonic voltage distortion measurement and to perform a control function based thereon.
Claims19
A converter, comprising:
- a housing having a mounting structure for mounting the converter to a DIN rail;
- and
- a converter circuit disposed within the housing and comprising one or more wide-bandgap semiconductor based active switching element(s), wherein the converter circuit is configured to determine a total harmonic voltage distortion (THvD) from voltage measurements and to generate one or more control signals to control the one or more wide-bandgap semiconductor based active switching element(s), wherein the one or more control signals are generated based on the determined THvD and without using any current measurements, and wherein the converter circuit is configured for current transformer (CT)-free sensor-less operation and lacks any terminal or interface configured to receive a current measurement or total harmonic current distortion (THiD) measurement from a CT via a wired or wireless connection.
A method of installing an active harmonic filter, power factor correction circuit, load balance circuit, or battery energy storage system, the method comprising:
- providing a DIN rail;
- and
- mounting a converter to the DIN rail, wherein the converter comprises a housing comprising a mounting structure, and a converter circuit disposed within the housing and comprising one or more wide-bandgap semiconductor based active switching element(s), wherein the converter circuit is configured to determine a total harmonic voltage distortion (THvD) and to generate one or more control signals to control the one or more wide-bandgap semiconductor based active switching element(s), wherein the one or more control signals are generated based on the determined THvD and without using any current measurements, and wherein the converter circuit is configured for current transformer (CT)-free sensor-less operation and lacks any terminal or interface configured to receive a current measurement or total harmonic current distortion (THiD) measurement from a CT via a wired or wireless connection, wherein mounting the converter to the DIN rail comprises engaging the mounting structure with the DIN rail.
Dependencies are inferred from the claim text.