电力系统保护与控制
電力繫統保護與控製
전력계통보호여공제
POWER SYSTM PROTECTION AND CONTROL
2014年
11期
99-105
,共7页
吴喜春%李咸善%陈铁%郭志峰
吳喜春%李鹹善%陳鐵%郭誌峰
오희춘%리함선%진철%곽지봉
水电站仿真%拓扑搜索%辅机系统仿真%管网%动态模型
水電站倣真%拓撲搜索%輔機繫統倣真%管網%動態模型
수전참방진%탁복수색%보궤계통방진%관망%동태모형
hydropower simulation%topology searching%auxiliary systems simulation%pipe network%dynamic model
应用拓扑搜索技术进行了水电站辅机系统的动态建模,提出了适用于辅机管网系统的拓扑搜索算法,建立了适用于动态计算的管网元件模型,利用拓扑搜索结果合成了便于计算的管网回路,建立相应的管网动态方程,并应用线性化理论将互相耦合的非线性方程化成线性方程迭代求解。该算法快速、适应管网及其元件工况的复杂变化,其计算模型能反映出辅机元件的中间过程,拓扑搜索较好地处理了不通支路,有效避免了管网计算的“死点”,“死网”问题。其算法和模型已经在某实际水电站的仿真系统中得到应用,验证了算法和模型的有效性。
應用拓撲搜索技術進行瞭水電站輔機繫統的動態建模,提齣瞭適用于輔機管網繫統的拓撲搜索算法,建立瞭適用于動態計算的管網元件模型,利用拓撲搜索結果閤成瞭便于計算的管網迴路,建立相應的管網動態方程,併應用線性化理論將互相耦閤的非線性方程化成線性方程迭代求解。該算法快速、適應管網及其元件工況的複雜變化,其計算模型能反映齣輔機元件的中間過程,拓撲搜索較好地處理瞭不通支路,有效避免瞭管網計算的“死點”,“死網”問題。其算法和模型已經在某實際水電站的倣真繫統中得到應用,驗證瞭算法和模型的有效性。
응용탁복수색기술진행료수전참보궤계통적동태건모,제출료괄용우보궤관망계통적탁복수색산법,건립료괄용우동태계산적관망원건모형,이용탁복수색결과합성료편우계산적관망회로,건립상응적관망동태방정,병응용선성화이론장호상우합적비선성방정화성선성방정질대구해。해산법쾌속、괄응관망급기원건공황적복잡변화,기계산모형능반영출보궤원건적중간과정,탁복수색교호지처리료불통지로,유효피면료관망계산적“사점”,“사망”문제。기산법화모형이경재모실제수전참적방진계통중득도응용,험증료산법화모형적유효성。
This paper uses the technology of topology searching to dynamic modeling for hydropower auxiliary system, puts forward the topology searching algorithm applicable to the auxiliary pipe network system, and establishes the pipe network component model suitable for the dynamic calculations, uses the results of topology searching to integrate the pipeline loop appropriate to calculation, and establishes corresponding dynamic equations of the pipe network in the model. A linear theory is applied to convert the mutual coupling non-linear equations into linear equations for solving it iteratively. This algorithm is very efficient and can adapt to the complex changes of pipe network and components working conditions. Its calculation model can reflect the changing processes of the auxiliary components among different states. Topology searching algorithm can deal with the isolating branch well, effectively avoid the problems of isolating nodes and sub-network in the pipe network calculations. Its algorithms and models have been applied in a real large hydropower simulation system, which validates the effectiveness of this algorithms and models.