Wu Xiao

Impacts on Operation and Benefit After New Energy Generation Access to Power Grid

As the development of social economy, the demand for energy is increasing rapidly. At the same time, energy shortage and environmental pollution problem is more and more serious, which is a big challenge for grid construction. New energy represented by wind and solar generation is flexible, safe and clean, and it provides a new idea to relieve the shortage of energy, solve the environmental pollution problem, and improve the reliability and flexibility of the grid. This paper analyzes the influences on power system operation and economic benefit by new energy generation access. The investing and construction direction for power grid enterprise in new energy industry is proposed.

Research on optimization of power grid voltage class series based on rapid load growth

This paper investigate the present situation and history of voltage class series of major city power grids at home and abroad. The technical and economic characteristic of 35 kV and 110 kV is analyzed. The advantage of 110 kV is demonstrated. With the increase of load density, the power supply capacity of 500/220/110/10kV is obviously improved, and the advantages of economy are more prominent. For areas with 35kV power supply, the development and transition of 110kV should be considered as the load density increases.