The design schematic diagram of the system and the principle designing curves of polygonal functions are given , the transfer functions in some relative segments of steam turbine and boiler coordinated control system are deduced , 給出了系統(tǒng)的設(shè)計(jì)原理圖,以及折線函數(shù)的原則設(shè)計(jì)曲線,推導(dǎo)出了機(jī)爐協(xié)調(diào)控制系統(tǒng)中有關(guān)環(huán)節(jié)的傳遞函數(shù),分析了系統(tǒng)的工作原理。
Firstly , in the reproducing kernel space , the spline function is discussed and its equivalent relations are gived ; we prove that the 2 - th differential operator interpolation spline function in the space can be expressed not only by the reproducing kernels but also by polygonal functions . so it is easy to prove its best approximation properties in theory and is convenient for numerical calculation in applications , too 首先,在再生核空間中討論樣條函數(shù),給出其等價性條件;證明了空間中的一個二階微分算子插值樣條既可由再生核函數(shù)表示又可由折線函數(shù)表示,這不僅在理論上便于獲得此種插值樣條函數(shù)的最佳逼近性質(zhì),而且在應(yīng)用上也便于數(shù)值計(jì)算。