Comprehensive evaluation method for primary frequency modulation performance of generator set

Abstract

The invention provides a comprehensive evaluation method for primary frequency modulation performance of a generator set. The comprehensive evaluation method comprises the following steps of determining an index for evaluating the primary frequency modulation performance of the generator set; performing normalized processing on the index for the primary frequency modulation performance of the generator set; determining the weight of the index for the primary frequency modulation performance of the generator set by a subjective and objective weight combination method; and evaluating the grade of the primary frequency modulation performance of the generator set based on a matter-element extension method. According to the comprehensive evaluation method, the dynamic primary frequency modulation performance index is introduced; the advantages of the subjective weight and the objective weight are combined to solve the weight of the primary frequency modulation performance index; the comprehensive evaluation for the primary frequency modulation performance of the generator set can be carried out based on the matter-element extension method; and in addition, the evaluation result is objective, reasonable and safe, so that foundation is laid for assessment of a dispatching department of an electric power system.

Description

technical field [0001] The invention relates to the technical field of power systems, in particular to a comprehensive evaluation method for the primary frequency regulation performance of a generating set. Background technique [0002] When the grid frequency deviates from the rated frequency, each unit uses heat storage to quickly respond to the grid frequency change, and the function of outputting power according to their respective static characteristics is called the primary frequency regulation function of the unit. It is an important means to prevent large fluctuations in grid frequency and maintain grid frequency stability. With the inter-regional interconnection of the power grid and the continuous increase of DC transmission capacity, the dispatching operation of the power grid pays more attention to the primary frequency regulation performance of the unit. [0003] At present, the primary frequency regulation performance parameters of generator sets are mainly ob...

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Problems solved by technology

[0004] In view of the above defects, the present invention provides a comprehensive evaluation method for the primary frequency regulation performance of generator sets, aiming to solve the problem that the existing primary frequency regulation performance evaluation system cannot be comprehensive due to the lack of indicators reflecting the system dynamic performance and a comprehensive and comprehensive evaluation method in the prior art. and objectively evaluated

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