Control method and device of grid-connected inverter, controller, grid-connected system and medium
The invention provides a control method and device of a grid-connected inverter, a controller, a grid-connected system and a medium. The control method of the grid-connected inverter comprises the following steps: when the grid-connected inverter is in an overcurrent protection state, monitoring an...
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| creator | HE HONGWEI HONG BAE-JAE XIE HONG |
| description | The invention provides a control method and device of a grid-connected inverter, a controller, a grid-connected system and a medium. The control method of the grid-connected inverter comprises the following steps: when the grid-connected inverter is in an overcurrent protection state, monitoring an inversion output current of the grid-connected inverter; when the inversion output current of the grid-connected inverter is smaller than or equal to a preset current return difference value, the grid-connected inverter is controlled to be switched from an overcurrent protection state to a normal working state; wherein the preset current return difference value is smaller than or equal to the rated output current of the grid-connected inverter, and the preset current return difference value is larger than zero. According to the invention, during the high voltage ride-through period, when the grid-connected inverter is in the overcurrent protection state, and the inversion output current of the grid-connected invert |
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The control method of the grid-connected inverter comprises the following steps: when the grid-connected inverter is in an overcurrent protection state, monitoring an inversion output current of the grid-connected inverter; when the inversion output current of the grid-connected inverter is smaller than or equal to a preset current return difference value, the grid-connected inverter is controlled to be switched from an overcurrent protection state to a normal working state; wherein the preset current return difference value is smaller than or equal to the rated output current of the grid-connected inverter, and the preset current return difference value is larger than zero. 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The control method of the grid-connected inverter comprises the following steps: when the grid-connected inverter is in an overcurrent protection state, monitoring an inversion output current of the grid-connected inverter; when the inversion output current of the grid-connected inverter is smaller than or equal to a preset current return difference value, the grid-connected inverter is controlled to be switched from an overcurrent protection state to a normal working state; wherein the preset current return difference value is smaller than or equal to the rated output current of the grid-connected inverter, and the preset current return difference value is larger than zero. According to the invention, during the high voltage ride-through period, when the grid-connected inverter is in the overcurrent protection state, and the inversion output current of the grid-connected invert</description><subject>CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER</subject><subject>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</subject><subject>ELECTRICITY</subject><subject>EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS</subject><subject>GENERATION</subject><subject>SYSTEMS FOR STORING ELECTRIC ENERGY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2024</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNjD0LwjAURbM4iPofnrsFS4bqKEFxcnIvNbnVQPJeSWLBfy9-TE5O5w7nnqm6GOGSJFBEuYmjjh05jN6CpKdr8q6ywgxb4MjziFSQVmQ_r_DaP1J-5IL4DkU4f49zNem7kLH4cqaWh_3ZHCsM0iIPnQWjtOZU182m2a613ul_nCc9LD4B</recordid><startdate>20240412</startdate><enddate>20240412</enddate><creator>HE HONGWEI</creator><creator>HONG BAE-JAE</creator><creator>XIE HONG</creator><scope>EVB</scope></search><sort><creationdate>20240412</creationdate><title>Control method and device of grid-connected inverter, controller, grid-connected system and medium</title><author>HE HONGWEI ; HONG BAE-JAE ; XIE HONG</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN117879033A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2024</creationdate><topic>CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER</topic><topic>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</topic><topic>ELECTRICITY</topic><topic>EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS</topic><topic>GENERATION</topic><topic>SYSTEMS FOR STORING ELECTRIC ENERGY</topic><toplevel>online_resources</toplevel><creatorcontrib>HE HONGWEI</creatorcontrib><creatorcontrib>HONG BAE-JAE</creatorcontrib><creatorcontrib>XIE HONG</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>HE HONGWEI</au><au>HONG BAE-JAE</au><au>XIE HONG</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Control method and device of grid-connected inverter, controller, grid-connected system and medium</title><date>2024-04-12</date><risdate>2024</risdate><abstract>The invention provides a control method and device of a grid-connected inverter, a controller, a grid-connected system and a medium. The control method of the grid-connected inverter comprises the following steps: when the grid-connected inverter is in an overcurrent protection state, monitoring an inversion output current of the grid-connected inverter; when the inversion output current of the grid-connected inverter is smaller than or equal to a preset current return difference value, the grid-connected inverter is controlled to be switched from an overcurrent protection state to a normal working state; wherein the preset current return difference value is smaller than or equal to the rated output current of the grid-connected inverter, and the preset current return difference value is larger than zero. According to the invention, during the high voltage ride-through period, when the grid-connected inverter is in the overcurrent protection state, and the inversion output current of the grid-connected invert</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY |
| title | Control method and device of grid-connected inverter, controller, grid-connected system and medium |
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