backward adv. 向后,在后,在后方;倒,逆;回向原處。 lean backwards 往后靠。 spell backwards 倒拼;誤解,曲解。 backward(s) and forward(s) 忽前忽后;來回地。 go backwards 倒退,退步,墮落。 say backwards 倒說。 adj. 1.向后方的,向后的。 2.倒的;反的,相反的。 3.落后的,晚的;遲緩的,慢的;進步慢的。 4.愚鈍的;畏縮的,遲疑的,怕羞的。 a backward child 智力差(落于人后)的孩子。 The country is in a backward state. 那個國家是落后的。 Summer is backward this year. 今年夏天來得晚。 be backward in (preparations, duty) (準備)遲緩;忽視(責任)。 adv. -ly ,-ness n. 落后,遲疑。
Moreover , the forward / backward sweep method is improved to deal with the weekly looped system and transformer branch 另外,改進了前代后代法潮流算法使之能處理弱環網和變壓器支路。
We also research the power flow calculation and reliability analysis of urban radial network , and a forward - backward sweeping method of power flow solution and a kind of reliability evaluation based on the minimal path method , are presented in this thesis 在前人研究成果的基礎上,提出了采用前推回推法計算配電網絡潮流以及基于最小路的實用快速可靠性評估算法.其中對于潮流計算,本文用c語言編制了相應的計算程序。
Two network analysis and operation algorithms for balanced radial distribution systems , called forward - backward sweeping method of power flow solution and real - time control of capacitors installed on distribution systems , are presented in this thesis . distribution networks have characteristics such as mesh network on planning and radial networks on operation . the radial topology of distribution networks has been fully exploited such that a systematic branch and node numbering scheme is utilized to achieve storage and computational economy 本文對配電網絡中電壓的調整,就電容器投切控制問題進行了深入的研究,在前人研究成果的基礎上,針對配電網絡結構特點,提出了采用前推回推法計算配電網絡潮流,對配電網絡就地補償電容器的控制采用模糊控制技術,對全局優化控制采用逐次線性規劃算法。