永磁直線同步電機矢量控制模型的優化與準確性分析
作者:張棟梁
單位:北京信息科技大學,北京 100192
摘要:基于永磁直線同步電機數學模型,構建具有三閉環控制結構的永磁直線同步電機伺服控制系統,并采用電壓空間矢量控制策略,在MatLab/Simulink環境下搭建永磁直線同步電機伺服控制系統整體仿真模型,通過對仿真實驗結果的分析,表明了該模型的正確性,為后續高精度永磁直線同步電機控制方法的研究提供了基礎模型。
關鍵詞:永磁直線同步電機;數學模型;電壓空間矢量控制;仿真模型
中圖分類號:TP273 文獻標識碼:A
文章編號:1006-883X(2018)01-0007-06
收稿日期:2017-09-26
Analysis of optimization and accuracy on vector control model of permanent magnet linear synchronous motor
ZHANG Dong-liang
Beijing Information Science & Technology University, Beijing 100192, China
Abstract: A servo control system with a three-closed-loop control structure for permanent magnet linear synchronous motor(PMLSM) is constructed based on the mathematical model of PMLSM. The voltage space vector control strategy is adopted to build a overall simulation model of the servo control system for PMLSM in MatLab/Simulink environment. The results of the experiments are analyzed and proves the correctness of the simulation model which provides a basic model for the subsequent research on the control method of high-precision PMLSM.
Key words: permanent magnet linear synchronous motor(PMLSM); mathematical model; voltage space vector control; simulation model
基于直流電機控制的智能尋跡小車
作者:李星,楊秀媛,李銀銀
單位:北京信息科技大學,北京 100192
摘要:設計了基于STC12C5A單片機的智能尋跡小車。利用小車前側及左右兩側的光電傳感器檢測跑道上的黑線,以STC12C5A單片機為控制芯片控制電動機及時調整轉向并利用PWM進行調速,從而實現小車沿跑道行駛以及超車的功能。其中尋跡信息采集部分以反射式光電傳感器和比較器組成,將采集到的數據處理后送至單片機。利用單片機輸出的PWM波經L298N實現對電機轉速的控制,從而實現小車的智能化。該小車具有自動尋跡、起始點檢測以及自動聲光報警等功能。基于穩定的硬件電路設計以及精確可靠的軟件算法,小車能夠實現預期功能。
關鍵詞:STC12C5A單片機;L298N驅動;光電傳感器;PWM調速
中圖分類號:TP29 文獻標識碼:A
文章編號:1006-883X(2018)01-0013-05
收稿日期:2017-10-20
Design of an intelligent auto-tracking car based on DC motor control
LI Xing, YANG Xiu-yuan, LI Yin-yin
Beijing Information Science & Technology University, Beijing 100192, China
Abstract: An intelligent auto-tracking car based on DC motor control is designed in this paper, which uses the photoelectric sensors at the front and the left and right sides of the car to detect the black line on the runway, STC12C5A MCU as the core to control the motor for adjusting the direction of the car, and the PWM signals to adjust the speed, so as to realize the car driving along the runway and the function of overtaking. The tracing information acquisition part is composed of the reflective photoelectric sensors and the comparator, which processes the collected data and sends them to the MCU. The control of motor speed is realized by using PWM wave output from SCM to realize the intelligentialize of the car. The car has automatic tracking, starting point detection and automatic sound alarm and other functions. Based on stable hardware circuit design and accurate and reliable software algorithm, the car can realize the expected function.
Key words: STC12C5AMCU; L298N; photoelectric sensor; PWM timing
電池組改進型電感均衡電路研究
作者:楊堅,張巧杰,趙旭
單位:北京信息科技大學 自動化學院,北京 100192
摘要:為了解決傳統電感型均衡電路只能實現電池單體之間能量單向流動、效率低下、結構復雜等問題,提出一種新的均衡電路拓撲,可實現由任何電壓高的電池單元向任何電壓低的單體電池轉移電能,實現電池組間主動平衡。首先,為確保電能可實現雙向流動以及均衡電流可工作在連續狀態下,對經典Buck-Boost電路進行改進作為串聯電池組均衡單元;然后,根據均衡電路特點,計算各個開關管占空比,實現串聯電池組間電能由高到低的流動,其次,通過電路分析,推導出均衡電流值;最后在Simulink平臺進行仿真實驗,證明該均衡電路的有效性。
關鍵詞:均衡電路;主動平衡;電池串聯;能量轉移
中圖分類號:TM912 文獻標識碼:A
文章編號:1006-883X(2018)01-0019-06
收稿日期:2017-10-12
Improved inductance equalization circuit for battery pack
YANG Jian, ZHANG Qiao-jie, ZHAO Xu
Automation Institute, Beijing Information Science & Technology University, Beijing 100192, China
Abstract: In order to solve the problems of traditional inductance balanced circuits, such as one-way-flow energy between batteries, low efficiency, complex structure and so on, a new balanced circuit topology is presented in this paper, which can transfer electric energy from high voltage battery unit to low voltage battery to achieve the balance between batteries. In order to ensure that the electric energy can achieve two-way-flow and the balanced current can work in continuous state, the classic Buck-Boostcircuit is improved at first as a balancing unit for series battery pack. Then, the duty cycle of each switching is calculated according to the characteristics of the balancing circuit to complete electric energy flowing from the high to the low in the series battery pack. Secondly, the balanced current value is derived by analyzing the circuit. Finally, the simulation experiments are done on Simulink platform, and the effectiveness of the balanced circuit is proved.
Key words: equalization circuit; active balance; battery series; energy transfer
分數階控制器在光電吊艙控制中的應用
作者:王笑超,李明秋
單位:長春理工大學 電子信息工程學院,吉林長春 130022
摘要:主要對光電吊艙俯仰環采用系統辨識法進行數學建模,基于幅值裕量和相位裕量法對分數階PIλDμ控制器參數整定,采用ALAlaoui+CFE脈沖響應不變法對控制器進行離散化實現,結合卡爾曼濾波器對模型進行仿真分析,結果表明基于卡爾曼濾波器的分數階PIλDμ控制器比純分數階PIλDμ控制器具有更好的控制效果、更強的魯棒性和抗干擾能力。
關鍵詞:幅值裕量;相位裕量;分數階PIλDμ控制器;卡爾曼濾波器;抗干擾能力
中圖分類號:TP273 文獻標識碼:A
文章編號:1006-883X(2018)01-0026-05
收稿日期:2017-11-09
Application of fractional controller in photoelectric pod control
WANG Xiao-chao, LI Ming-qiu
School of Electronics and Information Engineering, Changchun University of Science and Technology, Changchun 130022, China
Abstract: The mathematical model of optical pod pitch is established by using the system identification method. The controller parameters of fractional order PIλDμare tuned based on the amplitude margin and phase margin method, and the AL-Alaoui+CFE impulse response invariant method is used to discretize the controller. Finally, the model is simulated and analyzed with Kalman filter, and the results show that the fractional order PIλDμcontroller based on the Kalman filter has better control effect, stronger robustness and anti-interference ability than pure fractional order PIλDμcontroller.
Key words: amplitude margin; phase margin; fractional order controller; Kalman filter; anti-interference ability
心無旁騖,“專注”鑄造精品
——德國Novotechnik傳感器中國子公司總經理高巍先生訪談
作者:本刊編輯部
摘要:記錄了《傳感器世界》記者于2017年12月對Novotechnik中國子公司總經理高巍先生進行的一次專訪。高巍先生介紹了Novotechnik傳感器的發展歷程,回憶起Novotechnik進入中國后的點點滴滴,談到公司遇到的困難,取得的成績,也暢談了未來的規劃。同時,高巍先生也對目前國際半導體市場出現的并購潮以及中國傳感器行業的現狀與未來發展發表了自己獨特的看法和見解。
關鍵詞:采訪;Novotechnik;傳感器;企業建設;市場分析
中圖分類號:G212 文獻標識碼:D
文章編號:1006-883X(2018)01-0032-04
收稿日期:2017-12-20
No distractions .Focus on the best.
--Interview with Mr. Gao Wei, General manager of China subsidiary of Novotechnik
Author: Sensorworld Mag
Abstract: An interview with Mr. Gao Wei, general manager of China subsidiary of Novotechnik, in December 2017 is recorded. Mr. Gao Wei introduced the development history of Novotechnik, recalled the details happened after Novotechnik entering into China, talked about the difficulties encountered, achievements obtained and the future plans. Mr. Gao Wei also gave his own unique views and opinions on the current m&a trends in the international semiconductor market and the current situation and future development of sensor industry in China.
Key words: interview; Novotechnik; sensor; enterprise construction; market analysis
物聯網——啟動互聯世界
作者:Brian Buchanan
單位:安森美半導體
摘要:這是一篇關于物聯網技術的專稿,描繪了物聯網給我們帶來的改變與挑戰,根據安森美半導體的信息來源,評估并預測了物聯網未來的市場規模及應用,針對移動寬帶的覆蓋、數據信息的傳輸、感測方案的設計等問題進行了詳細的討論。最后介紹了安森美半導體實現物聯網發展和普及的技術方案和產品,給出了安森美半導體如何支持物聯網潛能的示例。
關鍵詞:物聯網;市場預測;傳感器解決方案;安森美半導體
中圖分類號:T-1 文獻標識碼:D
文章編號:1006-883X(2018)01-0036-02
收稿日期:2017-11-17
Internet of things start the inconnected world
Brian Buchanan
ON Semiconductor
Abstract: An feature about the features of Internet of Thing(IoT) technology is presented, which describes the changes and challenges from the IoTs, assesses and predicts the market scale and the applications of the IOTs in the future based on the information from ON Semiconductor, discusses the questions in detail about coverage of mobile broadband, information transmission, design of sensor solutions and so on. Finally, the technology schemes and products from ON Semiconductor for the development and popularization of the IoTs are introduced, and some examples of ON Semicoductor how to support the potential applications of the IoTs are given.
Key words: Internet of Thing; market forecast; sensor solution; ON Semiconductor.