14151RD04;
14151RD04現(xiàn)貨；
14151RD04供應(yīng)。

交流電動(dòng)機(jī)變頻調(diào)整控制方法的進(jìn)展主要體現(xiàn)在由標(biāo)量控制向高動(dòng)態(tài)性能的矢量控制與直接轉(zhuǎn)矩控制發(fā)展和開(kāi)發(fā)無(wú)速度傳感器的矢量控制和直接轉(zhuǎn)矩控制系統(tǒng)方面。
微處理器的進(jìn)步使數(shù)字控制成為現(xiàn)代控制器的發(fā)展方向。運(yùn)動(dòng)控制系統(tǒng)是快速系統(tǒng)，特別是交流電動(dòng)機(jī)高性能的控制需要存儲(chǔ)多種數(shù)據(jù)和快速實(shí)時(shí)處理大量信息。近幾年來(lái)，國(guó)外各至公司紛紛推出以DSP(數(shù)字信號(hào)處理器)為基礎(chǔ)的內(nèi)核，配以電機(jī)控制所需的外圍功能電路，集成在單一芯片內(nèi)的稱為DSP單片電機(jī)控制器，價(jià)格大大降低，體積縮小，結(jié)構(gòu)緊湊，使用便捷，可靠性進(jìn)步。DSP和普通的單片機(jī)相比，處理數(shù)字運(yùn)算能力增強(qiáng)10～15倍，可確保系統(tǒng)有更優(yōu)越的控制性能。數(shù)字控制使硬件簡(jiǎn)化，柔性的控制算法使控制具有很大的靈活性，可實(shí)現(xiàn)復(fù)雜控制規(guī)律，使現(xiàn)代控制理論在運(yùn)動(dòng)控制系統(tǒng)中應(yīng)用成為現(xiàn)實(shí)，易于與上層系統(tǒng)連接進(jìn)行數(shù)據(jù)傳輸，便于故障診斷、加強(qiáng)保護(hù)和監(jiān)視功能，使系統(tǒng)智能化(如有些變頻用具有自調(diào)整功能)。


　　2) 近朱者赤，近墨者黑。(晉·傅玄〈太子不少傅箴》)
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