一种阻感网络下的构网型新能源发电单元暂态控制方法
By designing a two-stage control method of "pre-feedback decoupling - energy shaping" under the resistive-inductive network, the problem of severe power coupling in the grid-type new energy power generation unit in the resistive-inductive network is solved, and the efficient transient stability control of the system under fault conditions is realized, thereby improving the system's operational reliability and engineering applicability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CENT SOUTH UNIV
- Filing Date
- 2025-10-21
- Publication Date
- 2026-07-17
AI Technical Summary
Existing grid-connected new energy power generation units are difficult to implement effective transient control in resistive-inductive networks due to severe power coupling, and they rely too much on real-time grid voltage measurement, making it difficult to maintain system stability under fault conditions.
A two-stage control method of "pre-feedback decoupling - energy shaping" is adopted. By establishing a port Hamiltonian model suitable for resistive-inductive networks, a pre-feedback control law is designed to achieve power decoupling, and the input reference power is adjusted during faults to complete transient control.
Without relying on grid voltage information during faults, the system achieves efficient transient stability control under severe fault conditions, improving the system's operational reliability and engineering applicability.
Smart Images
Figure CN121216623B_ABST