Multi-time scale security quantitative analysis of distributed source and load based on virtual inertia

The traditional power system scheduling and control strategy is under great pressure, and it is difficult to cope effectively with the rapidly changing power demand. Therefore, a distributed source-load multi-time scale security quantitative analysis based on virtual inertia is proposed. Based on virtual inertia, under the principles of frequency stability, voltage stability, economy, and reliability, the objective function of multi-time scale security quantification of distributed source and load is determined, the constraints of load balance and power balance are established, the supply and demand are balanced, and the operating cost is minimized. Rapid iterative optimization is carried out to generate real-time and accurate quantification strategies and realize multi-time scale security quantification analysis of distributed source and load. The experimental results show that the frequency offset of this method is low, and the balance between supply and demand on multiple time scales shows remarkable results.