Short-Term Balance Operation Model Considering Flexible Loads in Power Systems with High Penetration Renewable Energy

With the large-scale integration of renewable energy, the power development will present the system of renewable energy as the main body, a variety of renewable energy coordinated development trend, the characteristics of the power system will profoundly affect and even determine the operation mode of the power system. The double uncertainty of the source and load cause great challenges to the system operation. Flexible load regulation is an effective measure to alleviate the power supply shortage in peak periods. Compared with traditional regulation measure, flexible load has the advantages of fast response speed, low carbon and environmental protection. In this paper, a short term operation simulation model considering the coordination of various flexible loads is established by considering the short term regulation characteristics of transferable loads and interruptible loads. The validity of the proposed model is verified by the simulation of ROTS test system, the participation of flexible electric load in optimization scheduling can effectively reduce the peak-valley load difference, achieve the purpose of peak-valley cutting, effectively alleviate the power supply shortage problem during peak load period, and reduce system operating costs. Therefore, it has a obvious application effect.