A Calculation Method of Power Balance Index Based on Time-series Operation Simulation

Abstract

The present invention relates to a calculation method of electric power balance index based on time series operation simulation. The steps are: power balance index and calculation: obtain the monthly profit and loss control period and peak regulation control period from the monthly operation simulation data, and then use the profit and loss and During peak shaving control period, 11 types of power balance indicators are calculated each month; 11 types of power balance indicators each month include system demand capacity, system installed capacity, nuclear power utilization, energy storage utilization, hydropower utilization, thermal power utilization, peak shaving utilization, wind and solar utilization, Insufficient peak shaving and other indicators of power; power balance indicators and calculation: from the results of the 8760-point operation simulation, calculate the annual and monthly total load demand, the power generation of various units, the consumption of wind and light, and the utilization of various units Hours, and evaluate the power balance of the planning scheme according to the obtained indicators; the power balance indicators include system demand power, nuclear power generation, energy storage balance, hydropower availability, peak shaving power generation, thermal power generation, wind and solar power 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 ...

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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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