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Optimization Of Primary Frequency Modulation And Secondary Frequency Modulation Strategy For Generator Unit

Posted on:2016-02-19Degree:MasterType:Thesis
Country:ChinaCandidate:C C SunFull Text:PDF
GTID:2272330470475591Subject:Control engineering
Abstract/Summary:PDF Full Text Request
From a macro point of view, as the most important part of information management system of power generation information technology, a frequency modulation generator set and the second FM requirement data can provide valuable information, achieve rapid, timely and accurate.Now need data through the establishment of centralized management mode, thus adopt a FM and secondary FM frequency modulation of a combination of the generators to improve control level.Frequency of power system is normal and reliable operation of power system is an important safeguard, plays an decisive role in power system operation, but also reflects the important parameter index system is running good or bad, relationship with a large number of users of electric power equipment, and a lot of electricity power supply safety and efficiency of the device itself, with our daily life but also has a very closely related to our life.At first, this paper deeply studies the frequency control characteristic of power system, this paper discusses the primary frequency control and secondary frequency modulation principle and action. By establishing a mathematical model for analyzing the active power economic dispatch, among power plants is the frequency of the three adjustments. In frequency modulation, on the basis of theoretical research, this article also puts forward several a frequency modulation control strategy, namely digital electro-hydraulic control strategy of primary frequency control system and coordinated control strategy of primary frequency control system. In Hebei Datang International Power Generation wangtan power group co., LTD., the coal-fired units of coordinated control optimization control platform is put forward based on the mesh frequency of a frequency modulation module, the design of their respective advantages and disadvantages and improvement measures are put forward.Thesis in the fourth chapter in view of the guodian xuzhou power plant 1000 mw ultra supercritical unit for an FM test under different working conditions, different working conditions, put forward for improving the unit next FM performance differences, achieve the goal of the frequency modulation strategy optimization.The fifth chapter of thesis according to the requirement of the xinjiang power grid primary frequency control and power plant governor features, this paper introduces the primary frequency control and AGC secondary effects between FM and strategy optimization process, and verify the effectiveness of the strategy, has a certain reference.At present in domestic research field of power system, a frequency modulation control relative to gradually improve, in view of the different control strategies and need to improve place, all of this unit to improve the frequency response speed, maintaining the stability of power grid and improve the power quality plays a decisive role in such aspects.
Keywords/Search Tags:coordinated control system, primary frequency modulation, secondary frequency modulation, simulation model
PDF Full Text Request
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