In chapter 2 , the ii ordering is presented and the arbitrary functions and the arbitrary constants are least in the solution of formal series under the ii ordering by illustration ; furthermore , the author introduces the application of the standard form of reid to ascertain the target equation of linear constant partial equations 在第二章中,作者給出了reid標(biāo)準(zhǔn)型算法中的型序關(guān)系,通過舉例說明在型序下,得到的形式冪級數(shù)解中任意函數(shù)和任意常數(shù)的個(gè)數(shù)最少;并提出了reid標(biāo)準(zhǔn)型的一個(gè)重要應(yīng)用:確定線性常系數(shù)偏微分方程組的目標(biāo)方程。
Based on them , in this thesis , the one cycle control theory was successfully applied to the detection and control of apf for the first time . an apf using a novel unified constant - frequency integration control method was presented . the method employs an integrator with reset as its core component to achieve the detection and control of distortion current for apf at the same time 文中導(dǎo)出apf功率開關(guān)占空比必須滿足的控制目標(biāo)方程、求出apf主電路的穩(wěn)態(tài)模型、建立了通用常頻積分復(fù)位控制apf的數(shù)學(xué)模型,用簡單的模擬電路實(shí)現(xiàn)apf的通用常頻積分復(fù)位控制電路和通用常頻積分復(fù)位控制apf系統(tǒng)。