backward adv. 向后,在后,在后方;倒,逆;回向原处。 lean backwards 往后靠。 spell backwards 倒拼;误解,曲解。 backward(s) and forward(s) 忽前忽后;来回地。 go backwards 倒退,退步,堕落。 say backwards 倒说。 adj. 1.向后方的,向后的。 2.倒的;反的,相反的。 3.落后的,晚的;迟缓的,慢的;进步慢的。 4.愚钝的;畏缩的,迟疑的,怕羞的。 a backward child 智力差(落于人后)的孩子。 The country is in a backward state. 那个国家是落后的。 Summer is backward this year. 今年夏天来得晚。 be backward in (preparations, duty) (准备)迟缓;忽视(责任)。 adv. -ly ,-ness n. 落后,迟疑。
Moreover , the forward / backward sweep method is improved to deal with the weekly looped system and transformer branch 另外,改进了前代后代法潮流算法使之能处理弱环网和变压器支路。
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础上,提出了采用前推回推法计算配电网络潮流以及基于最小路的实用快速可靠性评估算法.其中对于潮流计算,本文用c语言编制了相应的计算程序。
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 本文对配电网络中电压的调整,就电容器投切控制问题进行了深入的研究,在前人研究成果的基础上,针对配电网络结构特点,提出了采用前推回推法计算配电网络潮流,对配电网络就地补偿电容器的控制采用模糊控制技术,对全局优化控制采用逐次线性规划算法。