In order to improve the power quality of distribution network system, one of the most effective methods is reactive power compensation. In this paper, the Distribution Static Synchronous Compensator for reactive power compensation was studied, and then the digital controller based on One-cycle control was designed. The waveforms of experimental device based on DSTATCOM of one-cycle control were given in this paper. It can be seen from the results that the fluctuation of DC capacitor voltage is lower, the dynamic response speed of DSTATCOM providing or absorbing reactive power is fast, and the accuracy of steady-state compensation can achieve the requirements of reactive power compensation in engineering basically

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For the damping of speed oscillation of hybrid electrical vehicle engine, this paper founded a PID controller according to the relationship between electrical throttle control positions, engine speed and engine torque.

根據(jù)發(fā)動機電控節(jié)氣門開度-轉速-轉矩關系爱搞网在线观看，建立了混合動力汽車用發(fā)動機轉速比例-積分-微分控制模型，并根據(jù)發(fā)動機轉速響應特性久久wwwcom，對模型參數(shù)進行了整定999国产精品免费。

An I/O device suc h as a disk controller or LAN adapter runs at some speed and inserts enoug h wait states into the CPU bus to slow the processor down to match the device speed.

象一個磁盤控制器或局域網(wǎng)改編者那樣的一臺I/O設備以某速度運行并且插入足夠等待狀態(tài)進中央處理器總線減慢處理器匹配設備速度。

The main content of this thesis is as follows: 1The structures of EPS are analyzed. The main components of EPS are introduced in detail. Then the distributed torque in EPS is analyzed and the control system model is set up. 2Three control modes are discussed and the control strategy of EPS is studied in detail. Three principal modules in the control strategy are discussed—the predicted module which predicts motor rotational speed and steering rotational speed, the power-assistant module and the return control module. 3The assistant torque curves of the motor are designed by using the B-spline, so that any kind of custom-built assistant torque curves can be designed according to different kinds of automobiles. 4The hardware frame of EPS is studied. The developed controller based on 8-bit MCU MC68HC908MR8 is introduced and many related circuit units are designed, including the control circuit, the driver control circuit and so on. The software structure is discussed, then the steering control program flowchart is given.

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In this paper, can be Phassus Siemens S7-200 controller on the three-speed winch control circuit modification, the analysis of the exchange of three-speed winch control system based on functional requirements, described the landing on Siemens PLC control system software design, given the external wiring diagram of PLC, control system provides a ladder and procedures, and simulation.

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The simulation of the vector control system for rotor flux orientation is studied in this paper. The modeling and simulation of the vector control system of speed and flux closed-loop with the torque inside loop are completed by applying electrical principles and the toolbox of Simulink and Power System in the Matlab software. The paper mainly introduces the modeling of the speed adjustment system and the setting of parameters of the controller. The obtained results of the simulation are close to actual situation, which proves the correctness of the modeling.

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If the whisper clean or low mode is selected, the controller 36 actuates the motor 24 to continuously operate at a relatively low speed to rotate the motor shaft 26 and fan 28 at a relatively low speed.

如果選擇了輕度或低級模式插插插射射射，控制器36會促動馬達24在相對較低的速度下連續(xù)運轉夜色樱花网站，從而在相對較低的速度下旋轉馬達軸26和風扇28。

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Speed-sensorless vector control system has two crucial problem, namely, the stability of speed identification and the controller structure.

無速度傳感器矢量控制系統(tǒng)中存在兩個關鍵性的問題7777视频，即速度辨識的穩(wěn)定性問題和控制器結構問題。