負荷同步 的英文怎麼說
中文拼音 [fùhétóngbù]
負荷同步
英文
synchronizing at load-
It can serve for synchronous spinning reserve, load following, frequency control and synchronous condenser operation. due to the difficulty of quantitative calculation, the typical cases on dynamic function of pumped storage plant are qualitatively analyzed in this paper
抽水蓄能電站具有運行靈活、啟動迅速的特點，其在電力系統的動」態效益主要表現在緊急事故備用、負荷跟蹤、調頻和同步調相上。The safety of transmission line plays a important role in power system safety it is not only the requirement of ensure supply power reliability, but also the necessary precondition of enhance power system stabilization, to remove faulty line quickly and accurately, also keep non - faulty line continuous work when some transmission line faults current differential protection is a kind of simple, reliable and good - selective protection manner to any variety of transmission lines, power system development needs current differential protection apply to transmission lines, moreover the advancement of electric and communication technology enable current differential protection apply to transmission lines firstly, the paper discusses, analyses the research and application transmission line protection in detail, compare the principle and realistic presupposition of general line pilot protections secondly, because conventional current vector differential protection are influenced easily by load current and transitional resistance, in order to at the same time quicken protection act, the principle and criterion include work characteristic of differential protect based on fault component sampled values are studied, results shows that differential protect based on fault component sampled values excels general vector current differential protection in reliability, sensitivity and anti - saturation of current transformer in addition, synchronous current sampling methods at all terminals of line is analyzed and estimated lastly, the principle and criterion. also device design about current sampling values differential protection based on optical fiber communication, which apply to short transmission lines are concretely investigated,
基於基爾霍夫定律的電流差動保護無論對於何種形式的輸電線路都是一種簡單、可靠、選擇性強的保護形式，電力系統的發展使得電流差動保護應用於線路保護成為需要，而電子、通信技術的發展使得電流差動保護應用於輸電線路成為可能。首先，本文對目前線路保護的研究和實際應用情況進行了討論和分析，比較了常用線路縱聯保護的實現原理和實現條件及優缺點。其次，針對常規相量電流差動保護易受正常負荷電流和故障過渡電阻影響的缺點，同時為加快差動保護的動作速度，對基於故障分量瞬時采樣值電流差動保護的原理、判據、動作特性等作了討論和分析，結果表明基於故障分量瞬時采樣值電流差動保護在可靠性、靈敏度、抗電流互感器飽和方面明顯優于常規相量電流差動保護，對電流差動保護各端的同步采樣方法和數據通信也進行了分析和評價。Furthermore, the dissertation researches the identifiability of the load by analyzing qualitatively the non - unique characteristic of the load parameter, and gives the numeric zone of the load parameters. the dissertation also investigates the view of the load model from different voltage levels
論文進一步研究了負荷模型的可辨識性，對負荷模型參數不惟一做了定性分析，研究了實際負荷模型的模型參數取值區間，和不同電壓等級電網的負荷模型折算問題。On the point of system, this paper mainly studies the optimal distribution of load in the machines of irrigation and drainage pumping station, the mathematical model and it ' s solution are studied among the machines in pumping station with two types of axial pump : full regulation or semi - regulation. this paper also studies the problems of the optimal day - operation of pumping station and the economical operation of grading pumping station. at the end, jiangdu pumping station is taken as a practical example to show the theory on economical operation of irrigation and drainage pumping station
本文從系統的觀點出發，以排灌站機組間負荷的優化分配研究為主，分別對全調節和半調節軸流泵兩種泵型的排灌站機組間負荷優化分配的數學模型及其求解方法進行了研究，同時對排灌站最優日運行方式及梯級泵站的經濟運行也進行了初步探索，最後以江都排灌站為例，建立了排灌站經濟運行的實用模型。Furthermore, it was acquired that the parameters of gecko gait ( such as gait period, stride length, duty factor ) and the angle curve of each leg according to the actual motion of them from the recorded datas which was processed and analyzed by computer programme. finally, it is concluded as the following : the angle variation of legs can be repeated during the motion ; in accord with each surface, it is varied that the gecko gait such as the period in which each leg is landed in surface, the sequence in which each leg was whether lift in advance or not during the motion. the motion speed of gecko is changed by adjusting the duty factors of each leg on the same surface
通過對實驗結果的分析比較，得出:運動過程中各腿腿部角度的變化過程具有明顯的規律性;不同表面上壁虎各腿的支撐狀態（各腿的支撐時間及抬、落腿的先後順序）各不相同;相同的表面上，壁虎的爬行速度的變化主要是通過調整各腿的負荷因數而實現的;相同的表面上，壁虎以不同的速度運動時，其步態（各腿抬、落腿的先後順序）是相同的。To meet the need of timely and accurate acquaint and analysis of the power plant fuel consumption in the reform of power industry in china, studies in this paper were mainly focused on the following several aspects : online calculation of the thermal economical performance of boiler, steam turbine and heat system was discussed and studied, and the dynamic relationship between real - time unit
本論文從機組的熱力特性和負荷因素出發，深入地探究了火電廠的實時負荷與煤耗量的依變關系，通過計算程序得出其變化曲線；然後進一步計算出年、月、日的煤耗量，為燃料部門的購煤提供依據，以便及時做出購煤的計劃；同時分析環境溫度、煤質變化對機組煤耗量的影響。The influence of both synchronous generator and the distance from local power plant to load bus on load modeling are analyzed. when the influences are not negligible, the composite induction motor load model can not effectively describe the actual load. besides, the identifiability in this case is analyzed
分析了同步發電機在綜合負荷中所佔的比例、地方發電廠離負荷母線的距離對負荷建模的影響，指出當同步發電機影響必須計及時，通常的感應電動機綜合負荷模型就不能正確描述區域負荷，並對由此引起的可辨識性及建模問題作了分析。By researching the features of motor torque control and motor speed control in the system, the paper present the methods of tension control and tension compensation of winder and accumulators, the loads balance of speed rollers, and the adjustment to accumulator in order to synchronize the speed of different segment. in order to control the overhang line of steel belt in the heater by pid controller, the method of off - line pid parameters calculation is applied
論文通過對連續彩塗板交流變頻調速拖動生產線各段張力和速度控制的要求和特點的研究，著重分析解決了開收卷機的張力控制和張力補償方案、活套控制中的張力補償方案、速度輥對間的負荷平衡控制、以及為實現各段速度間速度同步對活套的調節控制等。Exercise could lead to remodeling of icn, of which normal exercise load might lead to proportional increase of cardiac and icn, adapting oneself ot transmit of contractility between myocardial bundles and cardiac muscle cell ( cmc ) under conditions of myocardial hypertrophy ; and exercise overload might lead to increase of a large number of different collagen among myocardial bundles, cmc, arteriole and capillary, that could lead to increase of stiffness and descent of systolic and diastolic function of heart
運動可引起心肌間質膠原網路結構的重塑，一般運動負荷可使心肌與間質膠原網路同步增長，以適應心肌細胞肥大收縮力增加從而保證肌束間及心肌細胞間力的傳遞；運動超負荷可使心肌束間、心肌細胞間以及小動脈和毛細血管間不同類型膠原大量蓄積增生，導致心臟的僵硬度增加，舒縮功能降低。Synchronous payload envelope spe
同步凈負荷包絡The mathematical model of synchronous generator in the electromagnetic transient process and load of ship power station are given in this paper
本文給出了同步發電機電磁暫態過程實用模型和船舶電站負荷的數學模型。The synchrolifting lifting system developed by changjiang three - gorges navigation bureau is adaptable to the requirement of quick lifting of seriously deviated heavy load & large - diameter members, and possesses the advantages of high precision and good performance of adjustment
長江三峽通航管理局研製的同步升降系統，能適應偏載大負荷大尺寸構件的快速升降要求，同步精度高，調整性能好。Moreover presents a step - to - optimization contract mode that can effectively estimate the cost of customer ' s participation in order to take a customer - specific incentive payment and maximize the benefit of utility by using the customer behaviors. meanwhile also discusses a model about the dynamic flow model with the consideration with interruptible load. on the other hand, this paper discusses the influence from the demand side generation for the electric power system and presents an advanced design model for distribution networks, especially for demand side generations
本文首先總結了需求側管理的基本概念和主要內容，然後根據以前的研究成果，提出一種基於用戶行為的分步優化合約方案，能有效的估算用戶實施該措施的成本，從而達到電力公司收益最優，同時討論了考慮可中斷負荷的動態潮流模型；另一方面，本文還基於分佈發電技術，探討了用戶發電資源對電力系統的影響，並提出考慮該資源的配電網規劃模型改進方案。To the exploration, the author studies sailimu and buerjin wind - electricity field. the study shows the short circuit proportion supplied by wind - electricity is very high, so the wind - generator can " t be treated as a simple equipment that assumes energy, nor a simultaneous generator, if as an unsimultaneous generator, the short circuit will be different when the capacity changes, as a sequence, the relay will be influence too
以上研究結果表明：風力發電機提供的短路電流在短路電流中占相當大的比例，因此不能將風力發電機作為簡單負荷處理，也不能視為同步機處理，即使作為異步機處理，當採用容量不同時，短路電流大小也有變化，因此，也就直接影響繼電保護的整定計算。The time required for synchronization depends essentially on how far the mirror database was behind the principal database at the start of the session measured by the number of log records initially received from the principal server, the work load on the principal database, and the speed of the mirror system
同步所需的時間實質上取決于會話開始時鏡像數據庫滯後於主體數據庫的時間（按最初從主體服務器收到的日誌記錄數計量） 、主體數據庫的工作負荷和鏡像系統的速度。The unit coordinated control of coal - fired power plant is essential to the automatic generation control ( agc ). in order to get the fast load response characteristic and the stable main parameters that the power network dispatching center required, we must reconsider the existing unit coordinated control schemes by analyzing the specialty of the coal fired power plant
燃煤電廠的機組協調控制是機組投入自動發電控制（ agc ）的基本條件，為了機組能夠迅速響應電網的負荷要求，同時保證機組各主參數保持相對的穩定，必須在進一步分析機組被控對象的特性的基礎上，重新研究現存機組協調控制方案。The factors which affect load frequency characteristics are dissected in this thesis. frequency characteristics of constant revolution controlled load 、 synchronous motor dragged load 、 asynchronous motor dragged load and their effect to dynamic frequency characteristics are analysed. conclusion is reached as : increasing the efficiency of asynchronous motor can recede its slip and improve dynamic frequency characteristics
論文深入分析了影響負荷頻率特性的因素，分析了恆轉速控制工具機、同步機拖動工具機以及異步機拖動工具機的頻率特性和它們分別對系統動態頻率過程的影響，得出了恆轉速控制工具機對系統動態頻率不利；提高異步機的效率可降低其轉差率，從而改善系統動態頻率特性的結論。分享友人