New energy enrichment power grid power supply planning method and system

Abstract

The invention relates to an energy enrichment power grid power supply planning method and system. The method comprises first-stage planning processing and second-stage planning processing. The first-stage planning processing is characterized by based on a planning grid structure, taking the maximum line or section power flow as an optimization target, satisfying the voltage and frequency operationconstraint conditions, carrying out N1 and N2 stability check on network elements, and forming a power supply planning scheme meeting the safety and stability requirements of a power system; and thesecond-stage planning processing is characterized by on the basis that the first-stage power supply planning is feasible, establishing equivalent substitution relationships of various power supplies to optimize the configuration positions and the configuration number of different types of power supplies in the power supply layout planning, and then taking the minimum operation cost as an objectivefunction for the selected power supply layout planning scheme, and taking the resource constraints, the load requirements, the unit output characteristics and the operation cost characteristics as boundary constraints to analyze the new energy consumption level of an electric power and electric quantity balancing machine to thereby form an optimal layout scheme.

Description

technical field [0001] The present invention relates to the technical field of new energy planning, in particular to a method and system for planning power supply of a new energy enriched power grid that improves the safe operation level of a power system. Background technique [0002] In recent years, the development and utilization of new energy has achieved leapfrog development, vigorously promoting clean alternatives and environmental alternatives, and the continuous large-scale and rapid development of new energy sources such as wind power and photovoltaics has alleviated the energy crisis and environmental pollution problems to a certain extent. However, the sharp increase in the scale of clean energy has brought about a decline in the scale of traditional power generation. Among them, there are fewer and fewer types of power sources with strong system support capabilities such as thermal power, and the risk of safe and stable operation of the system is increasing day b...

AI Technical Summary

Problems solved by technology

However, the sharp increase in the scale of clean energy has brought about a decline in the scale of traditional power generation. Among them, there are fewer and fewer types of power sources with strong system support capabilities such as thermal power, and the risk of safe and stable operation of the system is increasing day by day.

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