内蒙古电力技术
內矇古電力技術
내몽고전력기술
Inner Mongolia Electric Power
2015年
5期
10-15
,共6页
康君%刘莉华%孙小晶%常富杰%孙立新
康君%劉莉華%孫小晶%常富傑%孫立新
강군%류리화%손소정%상부걸%손립신
汽轮发电机组%次同步振荡%DEH%DCS%频率响应%调速系统
汽輪髮電機組%次同步振盪%DEH%DCS%頻率響應%調速繫統
기륜발전궤조%차동보진탕%DEH%DCS%빈솔향응%조속계통
team turbine generator%sub-synchronous oscillation%DEH%DCS%frequency response%speed regulating system
针对汽轮发电机组调速系统次同步振荡问题，分别建立了DEH调速系统的调节阀、调节控制回路及汽轮机本体数学模型，通过设置经典控制和性能参数验证了其对次同步频率信号的幅频响应特性和时域响应特性。经仿真分析次同步振荡控制信号对次同步振荡的控制作用，分析了DEH调速系统抑制次同步振荡存在的主要问题，并给出了改进建议。
針對汽輪髮電機組調速繫統次同步振盪問題，分彆建立瞭DEH調速繫統的調節閥、調節控製迴路及汽輪機本體數學模型，通過設置經典控製和性能參數驗證瞭其對次同步頻率信號的幅頻響應特性和時域響應特性。經倣真分析次同步振盪控製信號對次同步振盪的控製作用，分析瞭DEH調速繫統抑製次同步振盪存在的主要問題，併給齣瞭改進建議。
침대기륜발전궤조조속계통차동보진탕문제，분별건립료DEH조속계통적조절벌、조절공제회로급기륜궤본체수학모형，통과설치경전공제화성능삼수험증료기대차동보빈솔신호적폭빈향응특성화시역향응특성。경방진분석차동보진탕공제신호대차동보진탕적공제작용，분석료DEH조속계통억제차동보진탕존재적주요문제，병급출료개진건의。
In view of the problem of the sub-synchronous oscillation of turbine generator unit, the regulating valve, the control loop and the steam turbine models were established respectively. The amplitude frequency response characteristics and the time domain response characteristics of the DEH were verified by setting up the classical control and performance parameters. By simulation analysis of the control of the sub-synchronous oscillation control signal, the main problems of DEH speed regulation system were found out, and gave the suggestions for improvement.
