AGC advanced control method containing multiple types of new energy

Abstract

The invention discloses an AGC advanced control method containing multiple types of new energy, which includes the following steps: input data is prepared for the compilation of an AGC advanced control method, and constraint conditions, an optimization objective and a corresponding algorithm option are determined according to the compilation requirements; units participating in the AGC advanced control method are determined according to unit parameters; an online rolling strategy with rolling once every 5 minutes and a scheduling cycle of half hour is adopted, the power deviation is calculatedaccording to the ultra short term power forecast and ultra short term system load forecast, and an adjustment power distribution model is established based on the overall optimization of the cycle time period, and the model is solved by a branch and bound algorithm; and an energy-saving generation scheduling technical support system publishes a scheduling plan to an EMS system in the form of fileor by automatic publishing, and the AGC advanced control method is published every half an hour. The hysteresis of automatic generation control is avoided, the impact of new energy on the power gridis reduced, and the adjustment burden of AGC units is reduced.

Description

technical field [0001] The invention relates to an active power scheduling method of an electric power system, in particular to an AGC advanced control method including multiple types of new energy sources. Background technique [0002] With global warming, the deterioration of the ecological environment, and the increasing consumption of non-renewable energy, the development of new energy has become a global hotspot, and the energy structure is undergoing major changes worldwide. New energy sources such as wind power and photovoltaic power generation are intermittent and random, and cannot be effectively controlled. Therefore, in the process of power grid dispatching, the full amount of intermittent energy is usually directly connected to the grid. However, the traditional power grid economic dispatch is based on accurate load forecasting, and the power forecasting accuracy of intermittent energy sources represented by wind power is far lower than load forecasting, which ca...

AI Technical Summary

Problems solved by technology

Although in the long-term forecast, medium-term forecast, and short-term forecast, the power forecast accuracy of intermittent energy represented by wind power is far lower than that of load forecast, which has no great reference significance in engineering; but the intermittent energy represented by wind power The ultra-short-term power prediction accuracy is high enough to meet engineering needs

Literature [2], Literature [3], Literature [4], Literature [5] only considered the ultra-short-term system load forecasting, but did not consider the ultra-short-term power forecasting of intermittent energy sources; and the advanced control methods they implemented were only The optimization of the distribution of power deviation at the cycle time point may lead to the occurrence of AGC anti-adjustment, which will increase the burden on the system

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