power demand control 中文意思是什麼
power demand control
解釋
需用功率控制-
Based on the demand of power department, a full distributed multifuncitional monitoring device is studied. this instrument not only can measure the data of hydroelectric plant, but also integrate the funcition of control the dynamotor, by cooperate with the program of epigynous system, it can realization the auto generate electricity on the hydroelectric plant and ordinal startup - stop of the dynamotor. 2 furthermore, performance of integrated dft arithmetic enhances the acturacy and reliability of measure. by communication several devices can run online to be controlled dispersedly and managed centrally
本文分析了國內外水電站自動控制裝置的研究和發展狀況，尤其是國內小型水電站的自動化現狀，針對現有電力部門的需求，設計並實現了一種單元式的微機自動監控裝置，該裝置不僅實現了對水電站內各種模擬參數和數字信號的實時監測功能，還對水輪發電機組進行了調控，通過與上位機處理程序的配合，可以實現水電站的自動發電控制、機組順序啟停；在測量發電機組機端電壓和電流參數的時候，採用32點離散傅立葉演算法（ dft ） ，增加了測量的準確性和可靠性；通過通訊可以實現裝置的聯網運行，做到「分散控制、集中管理」 。 -
In the hardware design, the paper completes modules ’ design like outside memory, patulous a / d, patulous d / a, rs232 communication, ecan communication, led control, keyboard control, distant control, emulation, reset, logic voltage switch, dsp supply power regulate and ac - dc power circuit, as well as room layout design like anterior panel, back panel etc. and dsp transfers data with peripheral equipments except outside memory using serial ports. besides, the whole circuit is configured in interrupt response. thus, it can meet system demand as well as take full advantage of tms320f2812 ’ s hardware resource. in the software design, the paper finishs programs like the interface programms intercommunicates with people, the distant control program, ad and da modules ’ control program, in addition, the paper select the velocity and acceleration state - feedback algorithm and is written in the program. the software design uses dsp integrate exploiting environment named ccs2. 2 of ti inc. as software instrument, and programs with the combination of c language and assembly language. moreover, in order to maintenance or modify the software expediently and shorten software ’ s exploitation time, the design adopt software modularization technique. finally, some air cylinder experiments are carried out to proved that the pneumatic controller is very practical
在硬體設計中，本文完成了片外存儲器擴展、 a / d擴展、 d / a擴展、 rs232通信介面、 ecan通信總線介面、液晶顯示控制、鍵盤控制、遠程控制、模擬、復位、邏輯電平轉換、 dsp工作電源校正電路和ac - dc電源等模塊設計以及控制器前面板、後面板等的空間布局設計。其中dsp與除外部存儲器的外圍設備之間的數據傳送全部採用串口通信，同時系統電路配置成中斷響應方式，這樣既滿足了系統要求，又充分利用了tms320f2812的硬體資源。在軟體設計中，本文完成了人機界面功能模塊、遠程控制模塊、 ad擴展模塊、 da擴展模塊、速度和加速度狀態反饋的控制演算法的程序設計。 -
A closed pulse width modulation ( pwm ) regulating speed system for dc servo - motor is presented, it is composed of avr microcontroller, pwm power driver, unit of speed detection using encoder and a serial communication interface, etc. fuzzy pid algorithm is employed to control the speed and position of wmr. the method can solve effectively some problems such as the uncertainty of wmr ' s model, the varieties demand, the change of situation
其次，設計了基於avr微控制器（ at90s8515 ）的移動控制系統，其中主要包括pwm功率驅動、測速單元和串列通訊模塊等：對機器人速度、位置控制採用模糊pid演算法，較好地克服了移動機器人模型的不確定性、轉速位置控制要求的多變和環境改變等因素的影響。 -
Benefit from the rapid growth of domestic power line communications network, we are committing to manufacture, sales and research of cable anchoring and control hardware and systems for opgw and adss optical fiber. in order to satisfy the growing demand from domestic and overseas customers, we succeed in designing patented series products of anchoring system for both optical fiber and communication power line by absorbing international advanced technology and procedure
公司著眼于電力行業的高速發展，長期致力於opgw和adss特種光纜及電力線纜的預絞絲配套安裝金具產品的開發生產和銷售，並結合國內外用戶的實際需求，引進和吸收國內外先進的技術工藝，成功研發出自主知識產權的全系列光纜配套金具和電力線路用螺旋預絞絲導線金具。 -
First, the paper has analyzed the chengdu ’ s housing market situation from the supplies and demand angle, analyzed the chengdu ’ s inhabitant ' s housing purchasing power from the inhabitant ' s revenue and expenditure, deposit and the quantity of durable consumable by inhabitant, and has promulgated the supplies and the demand contradiction ; next, the paper has carried on the discussion to the present chengdu ' s house price, the house price rise reason is : inappropriate supplies structure, increasing commodity apartment cost, unbalanced housing supply and demand, purchase the house for investing, policy strength ; once more, the paper give some proposal to the government to control the real estate market, the government should adjust the housing and land supply structure, control of the passive housing demand
本篇論文首先從供給和需求角度分析了成都住房市場現狀，從居民收支、儲蓄和耐用品擁有量分析了成都居民的住房購買力，並揭示了當前成都住房市場上存在的供給與需求間的矛盾;其次，論文對成都的房價進行了探討，論述了成都房價歷史和現狀，結合居民收入，論文認為成都房價雖高，但還在居民承受范圍內;然後，論文分析了成都住房價格上漲的原因，認為市場供應結構不合理、商品房成本增加、住房供求總量失衡、投資性購房增長過快、政策力量等因素造成了房價的上漲;再次，論文對政府宏觀調控房地產市場提出了幾點建議，認為政府應該調整和改善住房供應結構、加大土地供應調控力度和控制被動性住房需求來穩定房價。 -
It is an important work for the manage men of planning power grid to evaluate and control of power grid construction and size of grid electricity scientifically, and it is also the inevitable demand in market conditions. “ researching of assessing system methods and evaluation indicators in regional power grid construction ” is from the topic of assessing the scale level of regional power by hunan electrical power company
科學地評價、把握和控制地區電網建設規模是電網規劃管理部門的重要工作，也是電力市場條件下地區電網建設的必然要求。 「地區電網建設規模水平評價指標體系及評估方法研究」是湖南省電力公司在地區電網建設規模水平評估方面的一項課題。其目的是科學合理地認識改造后的地區電網的建設規模水平。 -
Secondly, to achieve the independent regulation of active and reactive power output from the generator side which is designed for the purpose of tracing the maximum wind - energy capturing. the paper has analyzed the mathematic model of the ac excited doubly - fed machine and the stator field orientation control strategy of the motor as vscf wind power generator. thirdly, it has put forward and designed the dual pwm converter with the capacity of energy flowing bidirectional aimed at the demand of rotor energy bidirectional flow. the author constructed reliable and integrated experimental system and did a series of experimental study including no - load, cutting - in network and power generation at, below and above the synchronous speed
論文首先分析了風機運行特性及其最佳風能利用原理，通過模擬及實驗驗證了採用直流電機的輸出特性模擬風力機的最大輸出功率曲線的可行性，並給出了模擬系統的硬體結構；然後為了實現交流勵磁發電機有功、無功功率獨立調節機理，分析了交流勵磁雙饋發電機的數學模型和在追蹤最大風能捕獲變速恆頻風力發電時必需的定子磁鏈定向矢量控制策略；針對雙饋發電機轉子能量雙向流動的要求，提出並設計了具有能量雙向流動能力的雙pwm交流勵磁用變頻器；最後為實現從理論到實踐的全面研究，研製出了一套小功率完整的雙pwm變頻器交流勵磁的雙饋風力發電機實驗系統，進行了空載、並網、同步速及上、下的發電運行等一系列的運行實驗；所完成的模擬和實驗研究均驗證了理論、模型和控制策略的正確性、可行性。 -
The thesis analyses the present situation and existing problems of construction pricing management of liaohe oilfield based on the research of management mode of engineering pricing combined with the supporting of relevant theories. lt puts forward with the pricing method of listing the amount of work to meet with the demand of connection with international practice of joint - stock company. lt is of great realistic importance to liaohe oilfield in terms of investment control, cost reduction and competitive power enhancement for a continuous and steady development
本文通過對工程造價管理模式的研究，結合相關理論的支撐，分析了遼河油田工程造價管理的現狀和存在的問題，提出適合遼河油田工程造價管理的工程量清單計價方法，以適應上市公司與國際慣例接軌的需要，這對遼河油田控制投資、降低成本、提高企業自身的競爭能力，保證遼河油田的持續穩定發展，都具有重大的現實意義。 -
Because deh system can use feedback signal of the first class pressure as practical power of turbine, it can avoid the reverse control, have the good ability of anti - disturbing. by the sophisticate control logic deh can make swift change of the control demand for following best value according to the circumstance, largely improved the dynamic characteristic when the unit sundenly discharge the full load
Deh系統控制器中的pid系數可根據試驗情況方便的調整，實現較好的動態特性，並可使調汽門動態過開，使再熱機組有良好的一次調頻能力； deh系統可採用調節級壓力做為汽輪機實發功率的反饋信號，避免出現反調現象，抗內擾和外擾能力強。 -
There are many plants that have the character of time - varying, large delay, large inertia in the process of production of modern power station such as the superheated steam temperature, the reheated steam temperature, the water treatment of boiler and the load regulation. some of them have the strong character of nonlinear and some of them are multivariable coupling systems it is very difficult to obtain good effect of control by conventional pid control. it is necessary to set up the mathematics models of controlled plants if applying control means of modern control theory such as self - adaptive control, optimal control ， decoupling control and predictive control. and these control systems have large calculation and bad character of real time in general. these disadvantages make them be not able to meet the need of real production process and limit the application of them in modern power station. now the generator units are developing towards large capacity and high parameters. many new kinds of generating electricity means are coming into being. the characers of production units of power station become more and more complex but the demand to quality of control becomes more and more strict. the new control means are in bad need to control them effectively
現代電站的生產過程中存在過熱汽溫、再熱汽溫、鍋爐水處理、負荷調節等許多大遲延、大滯后、特性時變的對象，它們中有些還是具有強非線性特性的對象或多變量耦合系統，採用常規的pid控制手段很難取得良好的控制效果。若應用現代控制理論中的自適應控制、最優控制、解耦控制、預測控制等控制手段，則需要建立被控對象的數學模型，而且往往控制系統的計算量大、實時性差。這些缺點使其很難滿足實際生產過程的需要從而極大地限制了其在現代電站中的應用。 -
From a power perspective, emerson is a leading supplier of control systems for fossil, nuclear and alternative energy power generating facilities, with control systems installed in plants representing roughly 300, 000 mw of generating capacity, which is equivalent to 40 percent of average peak demand in the united states
從電力的角度來看，艾默生是原油、核能和可轉化能源發電廠控制系統的領先供應商，其安裝在電廠的控制系統佔了大約30萬兆瓦的發電量，相當於美國平均高峰用電需求的40 % 。 -
The results show that wavelength locates in gain zone of semiconductor optical amplifier, and have higher peak power and proper time delay between the two pulses for the second order super gauss control pulse in semiconductor optical amplifier. a high quality amplified signal pulse can be achieved. the chirp can be reduced notability by using cascading soa in cross gain modulation based on soa, and the distance and the peak power of conversion optical pulse can be increased notability, and we can let down the demand for wavelength based on xgm in soa and enhance the flexibility of wavelength conversion
我們應用二階超高斯光脈沖與高斯信號脈沖同時注入soa和應用soa與非線性光學環鏡（ nolm ）相結合的方案來對信號脈沖進行壓縮整形，模擬顯示，在調節系統合適參數的情況下，波長位於soa增益區的二階超高斯控制光脈沖在具有較高的峰值功率和適當時延下輸入soa時，最後可以得到放大的高質量超簡訊號光脈沖；在基於soa的交叉增益調制（ xgm ）全光波長轉換中，採用級聯的soa能有效地使反轉光脈沖的頻率啁啾得到有效降低，波長向下轉換的距離和反轉光的峰值能量都得到明顯提高，降低了利用交叉增益調制（ xgm ）波長轉換中對波長精度的要求，從而提高了波長轉換的靈和性。 -
The subject of this paper is to research the retrofit of the governing system of the national 200mw turbine generator, beginning with commom problems existing in hydraulic governing system, combining with the demand of modern control system and the development of the electric power grid, discusses deeply the necessity of modifying the hydraulic governing system into the digital electronic hydraulic system
本論文以國產200mw機組汽輪機調節系統的改造為研究課題，從目前液壓調節系統普遍存在的問題入手，結合現代化控制系統的要求及電網發展的需求等方面，深入地闡述了液調改為電調的必要性。 -
In order to meet with the status and develop demand qf the oilfield electric power system, basing on the many series of transformer and the high performance demand to transformer in oilfield and the fact that measure instruments are incomplete now, by use computer control technology, a suit of oilfield electric power transformer performance and parameter integrated measure system is developed, which is for in - use, standby and choose type
論文結合電力系統現狀和發展需求，根據變壓器系列多、對變壓器性能要求高和目前檢測手段不完善的實際，藉助微機控制技術，從理論上研究變壓器在線試驗與故障診斷的技術方法，用以指導變壓器投運后能夠可靠、安全、經濟運行。 -
We have designed and established data collection center exchange network of sale of the whole company, and realized transfers demand of which met six power supply bureau load management systems by using five frequency point, and succeeded in solving the problem of data collection and control management that main station of power supply bureau provided user terminals
設計、建設了全公司營銷數據採集中心交換網，實現了利用五對頻點滿足六個供電局負荷管理系統的數傳需求，成功解決了供電局主站對用戶終端的數據收集和控制管理問題。 -
According to request that military put forward, the target car that subject research should have such characteristics as remote control, high precision, good safeguarding, needing no track, etc, so as to achieve purpose of course require correctly when training to carry on cannon static to static, static to move, move to static, move to move etc. target car transfer speed require low inertia, high accuracy, high dependability, stupid and getting excellent and kind systematically ; wireless communication system expect much dependability, better anti - interference ability ; computer control system demand and try one ' s best to adopt advanced technology, components and parts source of goods reliable, high dependability, structure to be simple, have serial communication, digital display, systematic trouble examine and function of showing etc. the job of this thesis is divided into three major parts : the proposition and confirming of the electric power pulls, specification requirement and selecting type of equipment of communication system, sureness of the computer control system scheme
根據軍方提出的要求，本課題研製的遙控坦克靶車應具有遙控、精度高、維護性好、無軌道、自帶動力等特點，以達到訓練時進行火炮或導彈靜對靜、靜對動、動對靜、動對動設擊等課目的要求。靶車調速系統要求低慣性、高精度、高可靠性、魯棒性好；無線通訊系統要求高可靠性、抗干擾能力強；微機控制系統要求盡量採用先進技術、元器件貨源可靠、高可靠性、結構盡量簡單，具有串列通訊、數字顯示、系統故障自檢及顯示等功能。本文的工作分為三大部分：電力拖動方案的提出及確定、對通訊系統的技術要求及設備選型、微機控制系統方案的確定。 -
This thesis regards independent study as basic theoretical foundation, vod video on demand as basic technological foundation, on this convenient network platform of university ' s campus network, studying vod university ' s teaching accessory system. because of vod video on demand technology having the unique right to choose, control power be in users " characteristic, vod university teaching accessory system has some teaching advantage, such as, teaching information pluralism, student study taking independently, teacher roles changing and so on, aim at offering the good network academic environment for the fact that university students learn independently, the teaching resources of the abundant network, the most important thing is that further training then improving university students " self - regulated learning ability
本論文以自主學習理論作為基本的理論基礎， vod視頻點播技術作為基本的技術基礎，在高校校園網這一方便的網路平臺上，研究vod高校教學輔助系統。由於vod視頻點播技術獨有的選擇權、控制權在用戶的特點，使vod高校教學輔助系統具有教學信息多元化、學生學習自主化、教師角色轉變化、教學資源共享化等教學優勢，為大學生自主學習提供良好的網路學習環境，豐富了網路教學資源，最重要的是進一步培養、提高大學生的自主學習能力。 -
Smart power system is widely used in different industries ; its market volume increases very fast. so the demand of its control ic is very huge
智能電源系統的應用廣泛，相關技術發展迅速，其核心控制晶元的需求量巨大。 -
The designed base - station and substation ( dolly controler ) both have infrared interface which can beam and receive infrared signal. by accreting the beaming power, one base - station can control 64 set of substations at mostthe base - station and master pc computer is connected with rs - 485 interface, this fullfils the demand of long - distance and high - speed commnication
通過增大發射功率，一臺基站最多可控制64臺從站。基站與上位pc機之間採用rs - 485介面進行通信，可以滿足遠距離高速通信的要求。 -
According to the characteristic of nine - area diagram of substation vol / var coordinated control, this system gives the defination of fuzzy sets and the degree of membership of input / output variables, and designs corresponding control rules. the results of simulation demonstrate the system can satisfy the constrains of the day - adjusting times of the switching of on - load transformer and paralleled compensation capacitors, and ensure voltage quality, reactive power basical balance. considering the var requirement in different load time period and the control demand in load saltation, a improved control scheme is provided. the results of simulation show the improved scheme can meet the demand of vol / var in different load time period, protect the wrong operation when either voltage or reactive power appears saltation, and decrease the times of regulation of the switching of on - load transformer and paralleled compensation capacitors finally, a background software module of substation vol / var coordinated control is designed, based on the supervisory control and data acquisition system of substation
模擬結果證明該系統能在各種負荷條件下確保電壓合格和無功基本平衡，且能滿足變電站對有載調壓變壓器分接頭日調節次數和並聯補償電容器組的日投切次數的限制。通過考慮不同負荷時段對無功功率的需求和負荷突變情況下的控制要求，對上述模糊控制策略進行了改進，模擬結果證明改進后的控制策略能滿足不同負荷時段對電壓和無功的要求、抑制電壓或無功突變情況下的誤動作，且有效地減少了有載調壓變壓器分接頭和並聯補償電容器組的調節次數。最後基於變電站scada系統設計了一后臺電壓無功綜合控制軟體模塊。
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