Comprehensive evaluation method for primary frequency modulation performance of generator set

A generator set and comprehensive evaluation technology, applied in the field of power system, can solve the problem that the primary frequency regulation performance evaluation system cannot be evaluated comprehensively and objectively.

Inactive Publication Date: 2017-01-04
STATE GRID CORP OF CHINA +2
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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 r

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  • Comprehensive evaluation method for primary frequency modulation performance of generator set
  • Comprehensive evaluation method for primary frequency modulation performance of generator set
  • Comprehensive evaluation method for primary frequency modulation performance of generator set

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Embodiment Construction

[0077] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0078] The comprehensive evaluation method of the primary frequency regulation performance of the generating set in this embodiment includes the following steps:

[0079] (1) Determine and evaluate the primary frequency regulation performance index of the generator set. The primary frequency regulation performance index includes regulation dead zone, adjustment coefficient, contribution rate, lag time, overshoot, oscillation times, stabilization time, correct action rate and commissioning rate.

[0080] The regulation dead zone means that when the absolute value of the difference between the frequency and the standard value...

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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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Application Information

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IPC IPC(8): H02J3/24H02J3/38
CPCH02J3/24H02J3/38
Inventor 王凯代力万源游大海熊建华何哲谌艳红段志远
Owner STATE GRID CORP OF CHINA
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