Power/electric-quantity balance index calculation method based on time-sequence running simulation

Abstract

The invention relates to a power / electric-quantity balance index calculation method based on time-sequence running simulation. The method includes the steps of: power balance indexes and calculation,wherein monthly profit / loss control time periods and peak regulation control time periods are obtained by monthly running simulation data, then the profit / loss and peak regulation control time periodsare utilized to calculate the 11 types of monthly power balance indexes, the 11 types of monthly power balance indexes include system requirement capacity, system machine installation, nuclear powerutilization, energy storage utilization, hydropower utilization, thermal power utilization, peak regulation utilization, wind / light utilization, peak regulation insufficiency and other power indicators; and electric-quantity balance indexes and calculation, wherein fully-yearly and monthly total load demand, generated electric-quantity of various units, wind / light consumption quantity and utilization hour numbers of the various units are respectively calculated by results of running simulation of 8760 points, electric-quantity balance situations of a planning scheme are evaluated according tothe obtained indexes, and the electric-quantity balance indexes include system requirement electric-quantity, nuclear power generation, energy storage balance, hydropower availability, peak regulationgeneration, thermal power generation, wind / light availability and utilization hours.

Description

technical field [0001] The invention relates to the field of power system analysis, in particular to a method for calculating a power balance index based on time-series operation simulation. Background technique [0002] With the rapid development of new energy sources and the regional imbalance of power demand and production, new challenges are posed to the overall and regional power balance in the process of power system planning. On the one hand, the uneven distribution of China's economic load centers and energy bases is intensifying, and the flow of electricity across provinces and regions is becoming more active; Adjust the area of ​​the unit and the delivery channel to make the problem of renewable energy consumption prominent. [0003] The traditional power balance mainly includes power balance and power balance. Among them, power balance is the balance of power generation power, power load and network loss in the power grid. The main content includes power supply ...

AI Technical Summary

Problems solved by technology

These traditional methods of determining the power balance by selecting typical operating modes and typical daily load curves for operation simulation have the following main shortcomings: (1) The results of power balance obtained by only performing operation simulations on typical load days are too rough, It is difficult to meet the refined requirements of the power grid planning with more variable operation modes; (2) The proportion of renewable energy such as wind and wind in the power grid is gradually increasing, and the uncertainty is strong, and the traditional simple processing method of power balance is difficult to apply (3) The indicators of power balance need to be further enriched, and a more comprehensive indicator system is needed to simultaneously reflect the utilization rate of renewable energy, electricity curtailment, peak shaving of various types of units, etc.

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