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A simulation method for frequency regulation of a two-zone system with supercritical units participating in wind power consumption

A technology of supercritical unit and simulation method, which is applied in general control system, control/regulation system, instrument, etc., and can solve problems such as outage, main steam temperature and pressure fluctuation of supercritical unit, supercritical unit tube burst, etc.

Active Publication Date: 2021-07-16
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in recent years, the temperature and pressure of the main steam of the supercritical unit fluctuate too much when the load changes, which leads to the explosion and shutdown of the supercritical unit.

Method used

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  • A simulation method for frequency regulation of a two-zone system with supercritical units participating in wind power consumption
  • A simulation method for frequency regulation of a two-zone system with supercritical units participating in wind power consumption
  • A simulation method for frequency regulation of a two-zone system with supercritical units participating in wind power consumption

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Embodiment Construction

[0077] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0078] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0079] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0080] A method for emulating the frequency modulation of a two-area system in which a supercritical unit partic...

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Abstract

In order to study the frequency modulation capability of supercritical units in areas with high wind power penetration rates, the invention provides a simulation method for frequency modulation of two-area systems in which supercritical units participate in wind power consumption, which belongs to the field of simulation analysis of supercritical units. The present invention includes: Step 1: Establish the coordinated control system and mechanism model of supercritical units, wind turbines and subcritical units, and observe the frequency difference and main steam parameters of each mechanism model under the condition of only one frequency regulation and no secondary frequency regulation control effect, debug the ratio parameters in the coordinated control system, and determine the mathematical transfer functions of supercritical units, wind turbines and subcritical units; Step 2: Establish the frequency modulation model of the two-area power system according to the mathematical transfer functions. Area A includes Supercritical units, wind turbines and subcritical units, area B only includes subcritical units, and frequency synchronization between area A and area B; Step 3: Use the established frequency modulation model and measured data of the two-area power system for simulation and analysis.

Description

technical field [0001] The invention relates to a simulation method of a wind power unit, a supercritical unit and a subcritical unit, in particular to a simulation method for frequency modulation of a two-region system in which a supercritical unit participates in wind power consumption, and belongs to the field of simulation analysis of a supercritical unit. Background technique [0002] With the increasingly serious environmental problems, the development and utilization of renewable energy has become increasingly important. Wind power is naturally fluctuating and intermittent, which puts great pressure on power grid frequency regulation. At the same time, due to the limitation of power generation efficiency, most of the wind turbines currently in operation do not have frequency regulation capabilities, which greatly reduces the capacity of frequency regulation units in the power system. Therefore, the increase in wind power penetration will pose a threat to the frequency...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B17/02
CPCG05B17/02
Inventor 郭钰锋陈润欣张冬蕊王琦
Owner HARBIN INST OF TECH
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