A hierarchical and zonal grid connection planning method and system for a new energy power station group
CN114626675BActive Publication Date: 2025-07-08RES INST OF ECONOMICS & TECH STATE GRID SHANDONG ELECTRIC POWER
Patent Information
- Application Number
- CN202210124677.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-02-10
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2042-02-10
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Figure CN114626675B_ABST
Abstract
The present invention discloses a hierarchical and zonal grid connection planning method and system for a new energy power station group, including: hierarchically and zonally dividing the power grid based on line impedance, and determining a feasible new energy grid connection plan according to the historical output data of new energy in each zone; constructing a multi-index evaluation system for new energy access to the power grid, including voltage deviation, power flow fluctuation, and active power loss; establishing a new energy zonal grid connection planning model with the goal of minimizing the curtailment of wind and light, so as to obtain various evaluation indexes under different new energy grid connection plans; combining the multi-index evaluation system to evaluate the new energy grid connection plan, so as to obtain the optimal new energy grid connection plan. Solve problems such as power flow fluctuation and voltage deviation after large-scale grid connection of new energy.
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Citation Information
Patent Citations
Multi-target grid planning method and device considering new energy consumption and environmental benefit
CN107681654A
Active power distribution network distributed power supply partition in-situ voltage control strategy setting method
CN109728603A