Power grid control method and system
The invention provides a power grid control method and system. The power grid comprises a plurality of boost modules which are connected in parallel, each boost module comprises a plurality of power devices, and the method comprises the following steps: collecting input current and output voltage of...
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| creator | ZHANG SHUNBIAO CHEN XIULIN LIU YUNHUA HUANG CHAO WANG FUGUANG TAN HONGLIN |
| description | The invention provides a power grid control method and system. The power grid comprises a plurality of boost modules which are connected in parallel, each boost module comprises a plurality of power devices, and the method comprises the following steps: collecting input current and output voltage of the boost modules; comparing the output voltage of the boost module with a preset target voltage to determine an input reference current of the boost module; determining an input current threshold value of the boost module according to the input reference current; when it is detected that the input reference current is larger than a preset current starting value and smaller than or equal to rated input current, all power devices in the boosting module are controlled to be started, so that the absolute value of the input current is increased, and the output voltage of the boosting module is adjusted; until the absolute value of the input current reaches the input current threshold value. The method can shorten the |
| format | Patent |
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The power grid comprises a plurality of boost modules which are connected in parallel, each boost module comprises a plurality of power devices, and the method comprises the following steps: collecting input current and output voltage of the boost modules; comparing the output voltage of the boost module with a preset target voltage to determine an input reference current of the boost module; determining an input current threshold value of the boost module according to the input reference current; when it is detected that the input reference current is larger than a preset current starting value and smaller than or equal to rated input current, all power devices in the boosting module are controlled to be started, so that the absolute value of the input current is increased, and the output voltage of the boosting module is adjusted; until the absolute value of the input current reaches the input current threshold value. 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The power grid comprises a plurality of boost modules which are connected in parallel, each boost module comprises a plurality of power devices, and the method comprises the following steps: collecting input current and output voltage of the boost modules; comparing the output voltage of the boost module with a preset target voltage to determine an input reference current of the boost module; determining an input current threshold value of the boost module according to the input reference current; when it is detected that the input reference current is larger than a preset current starting value and smaller than or equal to rated input current, all power devices in the boosting module are controlled to be started, so that the absolute value of the input current is increased, and the output voltage of the boosting module is adjusted; until the absolute value of the input current reaches the input current threshold value. 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The power grid comprises a plurality of boost modules which are connected in parallel, each boost module comprises a plurality of power devices, and the method comprises the following steps: collecting input current and output voltage of the boost modules; comparing the output voltage of the boost module with a preset target voltage to determine an input reference current of the boost module; determining an input current threshold value of the boost module according to the input reference current; when it is detected that the input reference current is larger than a preset current starting value and smaller than or equal to rated input current, all power devices in the boosting module are controlled to be started, so that the absolute value of the input current is increased, and the output voltage of the boosting module is adjusted; until the absolute value of the input current reaches the input current threshold value. The method can shorten the</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY |
| title | Power grid control method and system |
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