1) test scheme of PFR
一次调频试验方法
2) primary frequency modulation
一次调频
1.
Function design of primary frequency modulation and performance test for 215MW thermal power generating set;
215MW火电机组一次调频功能设计及性能试验
2.
Analysis for Primary Frequency Modulation of Turbo-generator Unit;
汽轮发电机组一次调频分析
3.
Application and realization of primary frequency modulation function for thermal-power generating unit;
火电机组一次调频功能的实现及应用
3) primary frequency regulation
一次调频
1.
Control modes of primary frequency regulation of DEH for 1 000 MW thermal units;
1000MW火电机组DEH一次调频控制方式应用与探讨
2.
Improvement and optimization of automatic generation control and primary frequency regulation for fixed fossil-fired units;
混合燃烧机组自动发电和一次调频控制系统完善与优化
3.
Joint application of CCS and DEH to primary frequency regulation;
CCS和DEH协同一次调频的运用
4) primary frequency control
一次调频
1.
Field test and strategy analysis of primary frequency control in Yunnan power grid;
云南电网一次调频试验工作现状及策略分析
2.
Function of the primary frequency control in power system and explanation of the technical parameters request in North China Grid are introduced.
介绍了一次调频在电力系统中的作用及华北电网对一次调频技术指标要求。
3.
There is a loop of pressure in DEB system,so primary frequency control is hold-up.
华北电网机组一次调频由DEH+CCS方式实现,而DEB协调方式由于存在速度级压力回路,故对一次调频存在抑制作用。
5) Primary frequency
一次调频
1.
Analysis About a Turbine Trip Accident Caused by the Setting of Inappropriate Parameters in Primary Frequency Regulation;
一起一次调频设置不当引致机组跳闸事故分析
2.
Solutions for primary frequency regulation and its influence on unit main parameters;
一次调频的实现方案和对机组主要参数的影响
3.
The detailed configuration of primary frequency modulation for large thermal power plants as well as note-worthy points was presented.
通过对唐山热电公司300 MW机组一次调频功能的具体实现详细介绍。
6) frequency regulation test
调频试验
1.
The paper makes detailed analysis on 5# hydraulic generating unit and governor parameters of Laxiwa hydropower station,and makes detailed description of 5# unit primary frequency regulation test under low water head,as well as proposes improving measurement on inconsistent problem of primary frequency regulation and monitoring system,and makes relevant optimization on the testing result.
文章对拉西瓦水电站5号水轮发电机组及调速器参数进行了详细的分析,并对5号机组在低水头下的一次调频试验做了详尽的描述,对试验予以了分析,针对一次调频与监控系统存在的不协调问题提出了改进,对试验结果进行了相应的优化。
补充资料：调频-调频遥测系统
采用调频-调频二重调制方式的频分制遥测系统,简称FM-FM遥测系统，属于模拟式遥测系统。FM-FM遥测系统的抗干扰能力强，遥测精度也比较容易得到保证。模拟式遥测系统大都采用这一类系统。下图为 FM-FM遥测系统的框图。各路被测量经变换器变换成电压信号后去控制各路副载波振荡器。副载波振荡器一般采用压控振荡器（即电压控制的振荡器），其振荡频率正比于控制电压,这样就实现了第一次调频。为了防止路际干扰,各路已调副载波先通过低通滤波器，滤去高次谐波，再送到相加放大器形成多路信号，并通过信道调制器对载波调频，这样就实现了第二次调频。已调频的载波由发射天线发送出去。接收端收到遥测信号后先通过解调器解调出多路信号，再送往各分路的带通滤波器，即分路滤波器，把各路已调副载波分离开来。分离出来的已调副载波送到相应的分路解调器，进行第二次解调，就可以得到所传送的模拟信号。美国对 FM-FM遥测系统已经实现了标准化、模块化、系列化。广泛应用模拟集成电路制成标准部件，提高了系统的可靠性和适应性。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条