Oscillation center identification method and system considering low-pass capability of new energy

• Main Authors: LUO HONGMEI, SONG YUNTING, TANG XIAOJUN, ZHU SHAOXUAN, GAO WENMAN, LI ZAIHUA, CHEN XIANG, HUO QIDI, LI JING, WANG QIAN, ZHANG XIN, CHEN DEZHI, LI LIXIN, SHEN JIAKAI, ZHANG KAI, WANG ZIQI, XIE YAN, CHEN MENG, WANG QING, LI HUILING, LI YUANYUAN
• Format: Patent
• Language: Chinese; English
• Published: 02.04.2024
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

The invention discloses an oscillation center identification method and system considering new energy low-voltage penetration capability, and belongs to the technical field of power systems. The method comprises the following steps: determining target data forming a target section; on the basis of the target data, three-permanent fault on-off simulation is carried out on N lines of the target section under the condition that the new energy low-penetration capacity is not considered and under the condition that the new energy low-penetration capacity is considered, so that the transfer ratio of power flow to the remaining on-operation lines is determined; according to the transfer ratio and the line static stability limit constraint condition, evaluating an oscillation center, a constraint line and a constraint fault to determine an evaluation result I under the condition that the new energy low-voltage crossing capability is not considered and an evaluation result II under the condition that the new energy lo