Partial discharge detecting system
AssigneeLG Electronics Inc.
InventorsJunghwan Kim, Taegu Kang, Byunggoo Kong, Taejung Kwon, Seungha Yoon
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Abstract
A partial discharge detecting system includes a partial discharge detecting device to generate a reference frequency signal, to detect a partial discharge pulse signal, and to convert the detected partial discharge pulse signal into a partial discharge digital signal, a main processor to synchronize the partial discharge digital signal, based on a zero-phase point of the reference frequency signal, to extract effective data from the synchronized partial discharge digital signal, and to store the extracted effective data, and an energy harvesting power supply device to supply power to the partial discharge detecting device and the main processor.
Claims15
A partial discharge detecting system comprising:
- a partial discharge detecting device configured to:
- generate a reference frequency signal,
- detect a partial discharge pulse signal, and
- convert the partial discharge pulse signal into a partial discharge digital signal;
- a main processor configured to:
- synchronize the partial discharge digital signal with the reference frequency signal based on a zero-phase point of the reference frequency signal to generate a synchronized partial discharge digital signal,
- extract effective data from the synchronized partial discharge digital signal, and
- store the extracted effective data;
- and
- an energy harvesting power supply device configured to supply power to the partial discharge detecting device and the main processor,
- wherein the main processor is further configured to:
- buffer a unit partial discharge digital signal in a one-cycle unit from the synchronized partial discharge digital signal, wherein the unit partial discharge digital signal includes a plurality of partial discharge points,
- extract a partial discharge peak point exceeding a reference voltage from the plurality of partial discharge points, and
- store only the extracted partial discharge peak point as the effective data.
A partial discharge detecting device comprising:
- a partial discharge detecting sensor configured to detect an analog partial discharge pulse signal;
- and
- a processor configured to:
- generate a reference frequency signal,
- convert the analog partial discharge pulse signal into a partial discharge digital signal;
- synchronize the partial discharge digital signal with the reference frequency signal,
- extract effective data from the partial discharge digital signal based on synchronization between the partial discharge digital signal and the reference frequency signal, and
- store the extracted effective data,
- wherein the processor is further configured to:
- buffer a unit partial discharge digital signal in a one-cycle unit from the synchronized partial discharge digital signal, wherein the unit partial discharge digital signal includes a plurality of partial discharge points,
- extract a partial discharge peak point exceeding a reference voltage from the plurality of partial discharge points, and
- store only the extracted partial discharge peak point as the effective data.
Dependencies are inferred from the claim text.