wind circuit 中文意思是什麼
wind circuit
解釋
空氣環流-
Why not hire a motor scooter and make a circuit of the island with the sea wind in your face, or stroll along the seashore and hunt for treasures on the coral and fossil - covered beaches where hermit crabs scuttle
遊客不妨租輛機車，迎著海風環島一圈，或漫步海邊，在珊瑚化石遍布寄居蟹橫行的海灘上尋寶。 -
But advances in rotor design and high - voltage integrated - circuit controllers have enabled the latest wind turbines to generate 30 percent more power than pinwheels the same size did just a decade ago
但是，旋轉輪設計與高電壓積體電路控制器的進步，讓最新型的風力葉輪產生的電力，比10年前同樣大小的風車增加30 % 。 -
3. we do short circuit analysis upon multiple magnetic circuit transformers by use of steady non - linear analysis and get the leakage reactance respectively between high voltage and high voltage 、 high voltage and low voltage 、 two high voltage and low voltage 、 low voltage and high voltage and low voltage and two high voltage. what ’ s more, we do finite element analysis upon the temperature field of transformers and according to its distribution we get the wind speed to forced air cooling
3 、採用穩態非線性分析法對多磁路變壓器進行短路阻抗計算，利用能量法計算出變壓器高壓與高壓、高壓與低壓、兩高壓與低壓、低壓與高壓以及低壓與兩高壓之間的漏感;對變壓器的溫度場進行有限元分析，確定溫度場分佈情況。 -
This product, adopted pwm integrated circuit and mosfet, igbt that were imported from the overseas, has the following merits : quick - response, strong interfere - proof, stable frequency and voltage, low consumption when light loading, high efficiency and reliable performance, it can be applicable to the family use, pasture region, work with the wind generator and some other places where the power failure often occurs
本品採用pwm （脈寬調制）集成電路和進口大功率mosfet 、 igbt等器件，具有應變快、抗干擾、自動穩定頻率和電壓、空載損耗低、效率高、性能可靠，是家庭，牧區，風力發電機配套以及其它野外經常停電地區提供交流電的必備的電器。 -
6 ) the imitative exploration and analysis that wind - electricity field short circuit is how to influence the relay equipment of electricity net
（ 6 ）風電場短路電流對電網繼電保護影響的初步分析。 -
This article introduces the design and implement of flight simulator based on dsp which contains five parts. the first part establishs the math model of flight simulator which contains the model of aerodynamics and flight mechanics, the model of standard atmosphere and wind model ; the second part introdces primarily the arithmetic of numeric integral which is very important to dyanmic system simulant. the third part introduces the design of hard interface circuit and program. the fourth part introduces the data flow graph of the flight simulator software and gunge - kutta integral arithmetic. the finall part introduces the design of serial port communication software, it contains communication protocol, the process of upper machine and lower machine communication and the programing of serial port communication by vc + +
本文介紹了基於dsp的飛行器模擬器設計與實現，主要分為五個部分，第一部分建立了飛行模擬的數學模型，包括飛行器空氣動力學和飛行力學的數學模型、標準大氣模型和風模型；第二部分主要介紹了數值積分演算法，它在動態系統模擬中是很重要的；第三部分為硬體介面設計與編程；第四部分介紹了氣動模擬軟體的數據處理流程和runge - kutta積分演算法；最後一部分為串口通信軟體設計，介紹了通信協議、上下位機處理流程和vc + +串口通信編程。 -
Then, the main circuit used igbt module and its driver circuit, protect circuit and its control circuit are designed in accordance with the characteristic of control system of doubly - fed vscf wind power generator
接著針對變速恆頻雙饋風能發電控制系統的特點，設計了基於igbt模塊的主電路及其驅動、保護和控制電路。 -
After analyzing the mathematical model of wind turbine and doubly - fed induction generator, a schematic is given about the power flow in the wind turbine and generator and a static equivalent circuit is shown as well. then, through the reference frame transform, the electromagnetic equation, dynamic equivalent circuit, and vectorgraph of doubly - fed generator can be gotten in the dq reference frame. in virtue of the general dynamic equivalent circuit, it produces a asymmetry equivalent
本文在對風力機和雙饋電機進行了數學分析后，給出了功率在風力機和雙饋電機中的流動過程圖解，同時給出了雙饋電機的穩態等效電路；然後，經過坐標變換，進一步得出了同步坐標系下雙饋電機的基本電磁方程、功率方程、動態等效電路和綜合矢量圖，並藉助通用動態等效電路的形式，得出了便於定子磁鏈分析的不對稱等效電路。 -
First, variable speed constant frequency wind energy convertion theory is described in this paper, then presents a review on the development of wind turbines control and the main types of generator and static converters used to interface variable speed wind turbines to the electric grid. then discuss main circuit constructure and advantage of direct drive wind energy conversion system and introduce pitch - control method for wind power traction and electric power stability. simply aerodynamic characteristic of the turbine is analysised and permanent magnet synchnonous generator math model is established. to convert the variable frequency electricity into utility grid, back to back four - quadrant pwm - vsi is used and three typies of control strategy is presented to capture the maximum wind energy and transmit energy. then simulation is implemented to test the control strategy. in the following chapter a simple ac - dc - ac converter with a dc - dc boosting chopper is proposed to transmit the wind energy into electricity energy and two control strategy is presented
建立了永磁電機和變流器的數學模型，針對雙pwm變頻器的特點提出了三種控制策略對變流器進行控制，通過變流器交-直-交的變換，將發電機發出的變頻變幅值交流電轉化為可用的恆定頻率的交流電，通過pwm調治能使其輸出功率因數為一，並且該控制系統功率因數為可調，能在特殊情況下同電網交換一定的無功功率，並通過對變流器的控制實現了最大風能俘獲的功能。最後採用matlab / simulink進行了模擬，取得了良好的模擬效果。在風力發電系統中，採用先進的最大功率俘獲演算法，能有效的從風中獲得最大的能量。 -
We base on the wind generators ' traits, have produced the generator related products, like charging system, inverter, and repacking system, it has the protection functions for the overcharging, over - discharging, short - circuit, over - loading and superheating etc. to top it off, the digital readout and the alarm system makes the generator run more safely
充電、逆變、卸荷系統完全根據風力發電機的特點配套生產，有完善的過充、過放、短路、過載、過熱保護功能，採用數字顯示，簡單直觀，有聲報警，系統運行更加穩定可靠。 -
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 author firstly analyzed the mathematic model of the cascaded brushless doubly - fed machine ( cbdfm ) on the dq and mt coordinate rotating at rotor speed and synchronous speed seperatly, and the equivalent circuit of steady state. the author also analyzed the stator power winding flux oriented vector control strategy of the cbdfm as vscf wind power generator and validated the validity of the model and strategy by the simulation analysis
此外，本文還首次詳盡地分析了級聯式無刷雙饋電機在轉子機械速dq坐標系、定子同步速mt坐標系下的數學模型，穩態等效電路及作變速恆頻風力發電機運行時的定子功率繞組磁鏈定向矢量控制策略，通過模擬分析驗證了模型和策略的正確性。
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