a variety of 多種的; 各種各樣, 多種多樣; 各種各樣;不同種類; 各種各樣的..., 種種..; 各種各樣的,眾多的; 一種,種種; 種類繁多的; 種種,各種; 種種,多種多樣的; 種種,若干不同的
variety n. 1.變化,多樣化 (opp. monotony, uniformity)。 2.(各種東西的)雜湊。 3.異種;種類;項目;【生物學】品種;變種;【語言學】異體。 4.〔主英〕雜耍表演 (= variety show)。 an improved variety 育成[改良]品種。 every variety of form 各種形式。 for a variety of reasons 因種種理由。 for variety's sake 為了不單調起見。 full of variety富于變化的,豐富多彩的。 have a great variety to choose from 有很多種類可供選擇。 in a variety of ways 用種種方法。
ideal adj. 1.理想的,典型的。 2.觀念的;想像的;空想的;不切實際的。 3.唯心論的;理想主義的。 an ideal place for a holiday 度假的理想場所。 ideal happiness 想像中的幸福。 n. 理想;典型;模范;空想的事物;【數學】理想子環,理想數。 beau ideal 十全十美的理想。 the I- and the Real 理想與現實。 That is only an ideal. 那僅僅是空想。 adv. -ly
The innovative ideas in this paper is to replace the linear fixed - gain pid controller for a nonlinear pid controller . based on the step response curves of conventional control system , we analyze the ideal variety of three gains in different times and construct the simulated curves of proportional , intergral and derivative gain . the controllers has considered all sorts of imperceptible factors affecting the servo performances in a lpmsm servo system , which include the parametric uncertainties brought by the changes of the mobile mass , the dynamitic performance of the system and the size of input . to solve the problem of so many unknown parameters , we use transmit arithmetic to find the parameters which are fit for the system . to keep the robust and stable performance 本文的創新之處在于,將傳統的固定增益的pid控制器用非線性pid控制器來代替,并在此基礎上,就一般控制系統的階躍響應曲線,分析了在不同響應時間階段pid的三個增益調節參數的理想變化情況,并根據這些理想變化,分別給出了比例、積分、微分增益參數的一種連續的非線性擬和函數。在分析雙位置環時,仔細考慮了能使系統性能變壞的各種因素,如系統的動態性能及控制出入能量的大小等等。