Analysis on reinforced concrete column under eccentric load in internal force combination control 鋼筋混凝土偏壓柱控制內(nèi)力組合分析
Pseud - sliding mode control in srd is lucubrated , the control law and the switch function of variable - structure control system with sliding mode ( vss ) are designed , the choice of the parameters of pi control and the theory of the combination control are discussed 實(shí)驗(yàn)結(jié)果表明準(zhǔn)滑模變結(jié)構(gòu)控制策略具有良好的動(dòng)態(tài)性能和穩(wěn)態(tài)性能,同時(shí)可以削弱傳統(tǒng)滑模控制的抖振影響,驗(yàn)證了理論分析和數(shù)字仿真的正確性。
Then the paper uses the same typical four network operating conditions as the primary given conditions and when adding one set of the parallel capacitor bank , changing the 330 / 220kv transformer tap changer position step by step to change the transformer ration , through this study methods this paper found out all the optimized combination of the tap changer position and the amount of input reactive power , also obtained four sets of the 330kv , 220kv and hokv s / s bus voltage and the active and reactive power losses changing curves . through analyzing the optimized combination control curve and the network power flow , the paper generalizes the rules as following : the chief measure of coordinative control is inputting shunt reactor in chengxian s / s in winter time both in the planning year of 2010 & 2005 ; in summer time in planning year of 2010 the chief measure is to input proper shunt capacitor 本研究通過分析所獲得的最優(yōu)綜合控制組合曲線及電網(wǎng)潮流,總結(jié)出了如下規(guī)則:隴南電網(wǎng)在2005年及2010年冬大、以及2005年夏小運(yùn)行方式下,綜合控制應(yīng)以成縣變投入適量并聯(lián)補(bǔ)償電抗器作為主要措施;在2010年夏小運(yùn)行方式下則投入適量并聯(lián)補(bǔ)償電容器作為主要措施,再輔助以選擇合適的主變有載調(diào)壓分接頭來調(diào)節(jié),達(dá)到控制網(wǎng)內(nèi)無功潮流分布合理、各變電站母線電壓在理想的范圍內(nèi)時(shí)電網(wǎng)有功損耗最小,從而也提高了電網(wǎng)安全運(yùn)行水平及供電質(zhì)量。
In the course of at reserching , developing and matching with the entire vehicle , the characteristics of torque converter and transmission , together with the integral performance of the power train which mainly consists of engine and automatic transmission , need to be analysed . base on this , optimization design and combination control can be realized 在自動(dòng)變速器的研究、開發(fā)及整車匹配過程中,需對(duì)液力變矩器與變速器的性能,以及以發(fā)動(dòng)機(jī)和自動(dòng)變速器為主的動(dòng)力傳動(dòng)系的整體性能進(jìn)行分析,以達(dá)到整個(gè)動(dòng)力傳動(dòng)系的優(yōu)化設(shè)計(jì)和綜合控制。
Aiming at the essential defect of pneumatic medium , pneumatic hydraulic combination control ( phcc ) servo system is formed , in which the liquid medium with low compressibility and high viscosity is introduced into a normal pneumatic servo system and is closed - looped controlled simultaneously 氣液聯(lián)控伺服系統(tǒng)正是基于克服或者補(bǔ)償氣體介質(zhì)的根本缺點(diǎn),將可壓縮性小、粘度較大的液體介質(zhì)引入到常規(guī)氣壓伺服系統(tǒng)中,并進(jìn)行控制而構(gòu)成的一種新型的氣、液介質(zhì)復(fù)合控制系統(tǒng)。