System and method for testing primary frequency modulation dynamic real-time performance of hydro-power generating unit

Abstract

The invention discloses a system and method for testing primary frequency modulation dynamic real-time performance of a hydro-power generating unit. The testing system comprises a data acquisition card,and an AI0 analog quantity input port,an AI1 analog input port and an AI2 analog input port of the data acquisition card are connected with ports of all sensors of a hydraulic turbine set respectively; an A / D conversion module of the data acquisition card is connected with a dynamic real-time calculation module through a PCI bus,and the dynamic real-time calculation module is connected with a frequency generator through a PCI bus; a Ctr0 port of a frequency generator is connected with a frequency acquisition port of a speed regulator of the hydraulic turbine set; frequency pulse signals of power grid simulation can be output accurately in real time,phase continuity of the frequency pulse signals is guaranteed,real-time transformation of the frequency of a power grid can be accurately simulated,and primary frequency modulation performance testing of the hydro-power generating unit is conveniently achieved and completed in a dynamic process.

Description

technical field [0001] The invention relates to the field of primary frequency modulation testing of hydroelectric units, in particular to a dynamic real-time performance testing system and a testing method for primary frequency modulation of hydroelectric units. Background technique [0002] As the proportion of large-capacity units in the power grid continues to increase, the load peak-to-valley difference caused by changes in the power structure of the power grid is gradually increasing, and the issue of grid frequency stability is getting more and more attention. To a certain extent, it affects the stability of the grid frequency. It is time-consuming and labor-intensive to send frequency through manual external equipment during a frequency modulation test, and it cannot satisfy the equipment synchronization, nor can it fully reflect the dynamic response effect of the unit to a frequency modulation under the actual fluctuation of the grid frequency, so the equipment need...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: the present invention uses a dynamic real-time performance test system and testing method for a frequency modulation of a hydroelectric unit to solve the problem of time-consuming and labor-intensive manual external equipment frequency generation during a frequency modulation test, and cannot satisfy equipment synchronization. , nor can it fully reflect the dynamic response effect of the unit to the primary frequency modulation under the actual fluctuation of the grid frequency, and the frequency resolution of the frequency signal generator of the general measuring device to meet the actual needs is unable to form a continuous frequency pulse signal

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