畢業(yè)設(shè)計(jì)-永磁同步電機(jī)矢量控制系統(tǒng)信號(hào)檢測(cè)-全文預(yù)覽
【正文】 我們 必須進(jìn)行實(shí)時(shí)檢測(cè)并利用檢測(cè)信號(hào)才能控制電機(jī)的正常運(yùn)行 ， 信號(hào)檢測(cè)主要是對(duì)定子電壓 、 定子電流 、 轉(zhuǎn)子位置及轉(zhuǎn)速進(jìn)行檢測(cè) 。 關(guān)鍵詞 : 永磁同步電機(jī) ， 矢量 控制， 位置傳感器 ， 轉(zhuǎn)子位置 2021 屆本科畢業(yè) 設(shè)計(jì) 永磁同步電機(jī)矢量控制系統(tǒng)信號(hào)檢測(cè) 10kW dc motor of the direct torque control system design Abstract A new brushless DC motor DTC scheme was studied to solve those problems associated with direct torque control (DTC) of brushless DC motor, such as difficulty to control flux and plexity to estimate torque. The flux hysteresis controller was ignored in the constant torque region and an imp roved method was proposed to make the estimation of torque easier. The proper stator voltage space vector was selected based on the output of the torque hysteresis controller and the sector which the current rotor flux locates in. The structure of the control system was simplified and the cost was reduced. Simulation and experimental results are presented, and it is shown that the feasibility and the validity of the scheme. Key Words: Brushless DC motor, DTC, Voltage space vector, Torque, Hysteresis control 2021 屆本科畢業(yè) 設(shè)計(jì) 永磁同步電機(jī)矢量控制系統(tǒng)信號(hào)檢測(cè) 目 錄 1 緒論 ...................................................................................................................................... 1 課題背景 .................................................................................................................... 1 課題的主要研究?jī)?nèi)容 ................................................................................................ 1 2 永磁同步電機(jī)數(shù)學(xué)模型 ..................................................................................................... 2 坐標(biāo)系的設(shè)立 ............................................................................................................ 2 坐標(biāo)變換及變換矩陣 ................................................................................................ 3 電機(jī)的數(shù)學(xué)模型 ............................................................................................................ 4 3 矢量控制系統(tǒng)的工作原理、信號(hào)檢測(cè) .............................................................................. 5 矢量控制系統(tǒng)的工作原理 ........................................................................................ 5 定子電流的檢測(cè) ........................................................................................................ 6 電壓的檢測(cè) ................................................................................................................ 7 轉(zhuǎn)子位置檢測(cè) ............................................................................................................ 8 轉(zhuǎn)速檢測(cè) .................................................................................................................. 10 4 永磁同步電機(jī)矢量控制系統(tǒng)及仿真 ................................................................................ 11 永磁同步電機(jī)矢量控制系統(tǒng) .................................................................................. 11 仿真 .......................................................................................................................... 12 5 結(jié)論 .................................................................................................................................... 17 參考文獻(xiàn) ............................................................................................................................... 18 致謝 ....................................................................................................................................... 19 2021 屆本科畢業(yè) 設(shè)計(jì) 永磁同步電機(jī)矢量控制系統(tǒng)信號(hào)檢測(cè) 1 1 緒 論 課題背景 矢量控制是在上世紀(jì) 70年代初由西德 Blaschke等人提出的一種高性能控制策略，應(yīng)用坐標(biāo)變換將三相系統(tǒng)等效為兩相系統(tǒng)，再經(jīng)過(guò)按轉(zhuǎn)子磁場(chǎng)定向的同步旋轉(zhuǎn)
公司管理相關(guān)推薦
鄂ICP備17016276號(hào)-1