Overall process quantitative evaluating method for hydraulic energy utilization evaluation of water-turbine generator set

Abstract

The invention relates to an overall process quantitative evaluating method for hydraulic energy utilization evaluation of a water-turbine generator set. A hydraulic energy utilization evaluating method for the water-turbine generator set needs to be researched currently. The method comprises the following steps: firstly, reading measured data of a hydropower station computer supervisory control system, a reservoir operation automatic system, and a generator set ultrasonic flowmeter, to obtain a running state and real-time running data of the water-turbine generator set; secondly, based on therunning state of the generator set, performing the conversion process decomposition of the generator set from a generator set passing hydraulic energy to an electric energy, and determining the conversion composition of the generator set passing hydraulic energy; thirdly, establishing a calculating model of each part of the energies of the generator set passing hydraulic energy conversion, and calculating the energy in real time; and fourthly, based on a real-time calculating result, counting and calculating each part of the energies of the generator set passing hydraulic energy conversion ina specific time interval, and performing the quantitative evaluation on the generator set hydraulic energy utilization conversion. The method is capable of realizing the instant evaluation and the ex-post evaluation of the generator set energy efficiency performance, and guiding the safe and economic operation of a power station.

Description

technical field [0001] The invention relates to a whole-process quantitative evaluation method for water energy utilization evaluation of a hydroelectric generating set, and belongs to the technical field of hydroelectric power generation. Background technique [0002] With the rapid development of hydropower technology and equipment manufacturing technology, the single-unit capacity and size of the newly-built hydropower station hydro-generating units are relatively large. With the increase of the running time after the unit is put into production, factors such as wear of the unit's flow-through parts, silting of the diversion channel, etc., cause the energy conversion performance of the unit to decline. The reduction of energy conversion performance of large-capacity units has resulted in significant loss of water energy utilization in hydropower stations. [0003] At present, the quantitative evaluation methods for energy utilization evaluation of hydropower units mainly...

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Problems solved by technology

In the existing Chinese patent whose publication date is March 23, 2016, and publication number is CN105429184A, a whole-process quantitative evaluation method for wind power priority scheduling evaluation is disclosed; and the publication date is February 10, 2016. In the Chinese patent No. CN105320992A, a quantitative evaluation method for power system backup is disclosed, which is not applicable to the water energy utilization evaluation of hydroelectric generating units.

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