pitch circuit 中文意思是什麼

pitch circuit 解釋
俯仰電路
  • pitch : n 1 瀝青；含有瀝青的物質；松脂，樹脂。2 人工合成瀝青；人造樹脂。vt 用瀝青塗。vt 1 扔，投，拋，擲...
  • circuit : n 1 （某一范圍的）周邊一圈；巡迴，周遊；巡迴路線[區域]；迂路。2 巡迴審判（區）；巡迴律師會。3 【...
  1. The controller adopts tms320f240 dsp as its main control unit, using code wheel for angle measurement, using synchronous serial communications interface for the duplexing data communication between the controller and the upper computer, using rs - 232 interface for the communication between the pitch axis controller and the azimuth axis controller, and then developed the interface circuit to the motor driver

    根據控制器研製要求，提出總體方案。控制器採用dsp作為主控單元，利用光電碼盤測角，利用同步串列通信介面與上位機進行雙向數據通信，利用rs - 232介面進行俯仰軸和方位軸控制器之間的通信，並研製了與電機驅動器的介面電路。
  2. 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。
  3. A special high - integration circuit, so compact that it can be housed in the slider, divides up the grating pitch very accurately ( by 2 / 5 / 10 times )

    特製的高密度集成電路小到可以全部集成在滑塊中，將光柵周期非常準確地細分（ 2 / 5 / 10倍） 。
  4. Detail specification for 1. 27mm pitch, 68 circuit memory card interconnect system

    1 . 27mm間距68線路存儲器卡互連接系統的詳細規范
  5. Detail specification for 1. 00 mm pitch, 88 circuit dram memory card interconnect system sp - 3048

    1 . 00mm間距88線路動態隨機存儲器存儲卡互連系統的詳細規范
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