Improved power grid voltage out-of-limit risk assessment method considering source load uncertainty
The invention discloses an improved power grid voltage out-of-limit risk assessment method considering source load uncertainty. The method comprises the following steps: establishing a source-load prediction error probability distribution model based on a deviation between a wind-light load predicti...
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| creator | XU XIAODONG YANG TINGBANG QIU WEIJIE XIAO XIAOBING YANG QIANG ZHANG RUIFENG LIN SHUNSHENG TAN BIN MA XIN XING ZHAOSEN DING YUJIE SHI QIHONG ZHAO YUANLIANG SHI HUJUN |
| description | The invention discloses an improved power grid voltage out-of-limit risk assessment method considering source load uncertainty. The method comprises the following steps: establishing a source-load prediction error probability distribution model based on a deviation between a wind-light load prediction value and an actual value; based on the charging load of the electric vehicle, a charging probability distribution model including normal distribution of the initial charging moment of the vehicle, daily mileage distribution of the electric vehicle, the SOC state of the initial grid-connected moment of the vehicle, the charging duration and the off-grid moment is established; and establishing a distribution network voltage out-of-limit risk assessment method based on the source-load prediction error probability distribution model and the charging uncertainty probability model. According to the method, by evaluating the voltage out-of-limit risk, planning guidance is provided for reducing the voltage out-of-limit |
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The method comprises the following steps: establishing a source-load prediction error probability distribution model based on a deviation between a wind-light load prediction value and an actual value; based on the charging load of the electric vehicle, a charging probability distribution model including normal distribution of the initial charging moment of the vehicle, daily mileage distribution of the electric vehicle, the SOC state of the initial grid-connected moment of the vehicle, the charging duration and the off-grid moment is established; and establishing a distribution network voltage out-of-limit risk assessment method based on the source-load prediction error probability distribution model and the charging uncertainty probability model. 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The method comprises the following steps: establishing a source-load prediction error probability distribution model based on a deviation between a wind-light load prediction value and an actual value; based on the charging load of the electric vehicle, a charging probability distribution model including normal distribution of the initial charging moment of the vehicle, daily mileage distribution of the electric vehicle, the SOC state of the initial grid-connected moment of the vehicle, the charging duration and the off-grid moment is established; and establishing a distribution network voltage out-of-limit risk assessment method based on the source-load prediction error probability distribution model and the charging uncertainty probability model. 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The method comprises the following steps: establishing a source-load prediction error probability distribution model based on a deviation between a wind-light load prediction value and an actual value; based on the charging load of the electric vehicle, a charging probability distribution model including normal distribution of the initial charging moment of the vehicle, daily mileage distribution of the electric vehicle, the SOC state of the initial grid-connected moment of the vehicle, the charging duration and the off-grid moment is established; and establishing a distribution network voltage out-of-limit risk assessment method based on the source-load prediction error probability distribution model and the charging uncertainty probability model. According to the method, by evaluating the voltage out-of-limit risk, planning guidance is provided for reducing the voltage out-of-limit</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 GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY |
| title | Improved power grid voltage out-of-limit risk assessment method considering source load uncertainty |
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