Dynamic combination allocation method and device for AGC units suitable for ACE subsection control

Abstract

The invention provides a dynamic combination allocation method and device for AGC units suitable for ACE subsection control. The method comprises the steps of detecting current upper and lower adjustable capacities and upper and lower adjusting rates of the AGC units in real time; carrying out descending sorting according to the upper and lower adjusting rates and the adjustable capacities of the units; and carrying out preferential selection, dynamic combination, normal adjustment and auxiliary adjustment of ACE and cooperative adjustment of the units according to the responsiveness of the AGC units, and matching the unit responsiveness of various ACE control sections with the adjusting requirements of the sections to automatically form a unit combination coordination echelon of meeting the ACE subsection control requirements. By the dynamic combination allocation method and device, the problems that unit combination is unreasonable, the coordination ability is not enough, the demand responses are not matched or adjusting standby resources are wasted and the like in artificial allocation are solved; arrangement of the adjusting standby resources can be optimized; the coordination efficiency of various AGC units is fully developed; and the operation indexes specified by a control performance standard (Control Performance Standard, CPS) is effectively improved.

Description

technical field [0001] The present invention relates to the technical field of automatic generation control (Automatic Generation Control, AGC) of electric power system, in particular, relates to a method and device for dynamic combination and deployment of AGC units suitable for segmental control of AGC area control error (Area Control Error, ACE) . Background technique [0002] The production, transmission, supply, and consumption of electric energy must be completed at the same time. Therefore, the power dispatching organization must track and respond to load changes at any time. Through effective regulation of generator sets, it can meet the balance of power supply and demand and ensure the safe and stable operation of the power system. [0003] Due to the rapidly changing load of the power system, relying on manual operation is difficult to meet the needs of safe, high-quality, and economical operation in terms of response speed and regulation accuracy. Automatic regula...

AI Technical Summary

Problems solved by technology

Since the adjustment capacity and adjustment rate of different units are not the same, the adjustment performance of different types of units is more different, so the related technology fails to arrange the adjustment reserve capacity according to the adjustment needs of each control section of ACE, and does not specify ACE in the day-ahead power generation plan The combination or number of AGC units in each control section can only be manually allocated by the on-duty dispatcher based on experience, which is difficult to implement and labor-intensive; The range (that is, the adjustable capacity of up and down) will change accordingly, and the adjustment rate may also change with the different operating conditions. Therefore, there are problems such as unreasonable unit combination, insufficient coordination capacity, mismatch of demand response or waste of adjustment reserve resources.

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