Single-phase earth fault ride-through method, system and device for low-voltage transformer area
The embodiment of the invention discloses a single-phase earth fault ride-through method for a low-voltage transformer area, and the method comprises the following steps: determining a single-phase earth fault phase K after detecting that a single-phase earth fault occurs in a first transformer area...
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| creator | HUANG JISHENG NIE DING QIAN GUOCHAO TANG LIJUN SHI XUNTAO YANG JINDONG LIU HONGWEN CHEN XIAO RONG FEI |
| description | The embodiment of the invention discloses a single-phase earth fault ride-through method for a low-voltage transformer area, and the method comprises the following steps: determining a single-phase earth fault phase K after detecting that a single-phase earth fault occurs in a first transformer area or a second transformer area; obtaining a K-phase current IK0 of the first transformer area or the second transformer area before the single-phase earth fault occurs and a K-phase current IK1 of the first transformer area or the second transformer area after the single-phase earth fault occurs; determining a K-phase earth fault current Isc of the first transformer area or the second transformer area; presetting rated current Iinv in the first interconnection module or the second interconnection module corresponding to the first transformer area or the second transformer area with the single-phase earth fault; determining a control mode of a first interconnection module or a second interconnection module correspond |
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obtaining a K-phase current IK0 of the first transformer area or the second transformer area before the single-phase earth fault occurs and a K-phase current IK1 of the first transformer area or the second transformer area after the single-phase earth fault occurs; determining a K-phase earth fault current Isc of the first transformer area or the second transformer area; presetting rated current Iinv in the first interconnection module or the second interconnection module corresponding to the first transformer area or the second transformer area with the single-phase earth fault; determining a control mode of a first interconnection module or a second interconnection module correspond</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>eNqNyjEKwkAQRuE0FqLeYezdIkSRlBIUKxvt45D9kw1sdsPsJOLttfAAVg8-3jJ73vvQeZjRcQKBRR21PHkl6S2MOolT52iAumh3lN5JMRAHSxZz34DaKOTjy8zRK3cgFQ7piwOEWMDrbNGyT9j8usq2l_OjuhqMsUYauUGA1tUtz4_FcV8eylPxz_MBuAc9Xg</recordid><startdate>20240109</startdate><enddate>20240109</enddate><creator>HUANG JISHENG</creator><creator>NIE DING</creator><creator>QIAN GUOCHAO</creator><creator>TANG LIJUN</creator><creator>SHI XUNTAO</creator><creator>YANG JINDONG</creator><creator>LIU HONGWEN</creator><creator>CHEN XIAO</creator><creator>RONG FEI</creator><scope>EVB</scope></search><sort><creationdate>20240109</creationdate><title>Single-phase earth fault ride-through method, system and device for low-voltage transformer area</title><author>HUANG JISHENG ; 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obtaining a K-phase current IK0 of the first transformer area or the second transformer area before the single-phase earth fault occurs and a K-phase current IK1 of the first transformer area or the second transformer area after the single-phase earth fault occurs; determining a K-phase earth fault current Isc of the first transformer area or the second transformer area; presetting rated current Iinv in the first interconnection module or the second interconnection module corresponding to the first transformer area or the second transformer area with the single-phase earth fault; determining a control mode of a first interconnection module or a second interconnection module correspond</abstract><oa>free_for_read</oa></addata></record> |
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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 | Single-phase earth fault ride-through method, system and device for low-voltage transformer area |
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