研究目的
Designing a decentralized consensus protocol for utility-scale solar-PV generation to detect and compensate for power flow oscillations, improving frequency stability and damping in power systems with high inverter-based generation.
研究成果
The proposed consensus protocol effectively damps inter-area power flow oscillations and improves frequency recovery in power systems with high solar-PV penetration, as demonstrated in simulations of a three-area system. Future work should focus on reducing detection times and expanding to larger networks.
研究不足
The research is based on simulations and may not fully capture real-world complexities. Detection time and scalability to larger systems require further optimization.
1：Experimental Design and Method Selection:
The method involves designing a consensus protocol for decentralized control, using port-Hamiltonian system modeling and Lyapunov stability principles. It incorporates local synchrophasor measurements and wide-area SCADA messages for damping control.
2：Sample Selection and Data Sources:
A three-area interconnected power system model is used, approximating the US Eastern Interconnection and based on a disturbance event from June 17, 2016. Parameters are derived from standard power system models.
3：Parameters are derived from standard power system models.
List of Experimental Equipment and Materials:
3. List of Experimental Equipment and Materials: Phasor measurement units (PMUs), SCADA systems, solar-PV inverters with battery energy storage, and simulation software (Matlab-Simulink? with SimPower) are utilized.
4：Experimental Procedures and Operational Workflow:
The protocol detects oscillations using PMU data over a 10-second assessment period, then injects controlled power flows via inverters. Simulations include communication delays and network topology changes.
5：Data Analysis Methods:
Data is analyzed using quadratic cost functions and Lyapunov-based stability analysis, with results evaluated through tie-line power flow and frequency measurements.
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