目錄

摘要 3

ABSTRACT 4

第1章 緒論 5

1.1、電動(dòng)機(jī)的工作狀態(tài) 5

1.2、制動(dòng)與電動(dòng)的本質(zhì)區(qū)別 6

1.3、制動(dòng)的概括 6

1.4、制動(dòng)的分類比較 7

第2章 回饋制動(dòng) 8

2.1、回饋制動(dòng)條件 8

2.2、電動(dòng)機(jī)回饋制動(dòng) 9

2.2.1、回饋制動(dòng)的原理 9

2.2.2、回饋制動(dòng)的機(jī)械特性 9

2.3、回饋制動(dòng)實(shí)現(xiàn)的條件 10

2.4、位能負(fù)載下放重物時(shí)回饋制動(dòng) 10

2.5、直流電動(dòng)機(jī)回饋制動(dòng)工作狀態(tài)分析 10

2.6、正向回饋制動(dòng) 12

2.7、反向回饋制動(dòng) 13

第3章  回饋制動(dòng)的應(yīng)用領(lǐng)域 14

3.1回饋制動(dòng)的優(yōu)點(diǎn) 14

3.2回饋制動(dòng)的缺點(diǎn) 14

3.3回饋制動(dòng)的控制 15

3.4回饋制動(dòng)的適用場合 15

結(jié)束語 15

參考文獻(xiàn) 16

致  謝 17

摘要

回饋制動(dòng)是變頻器制動(dòng)方式的一種，也是非常有效的節(jié)能方法。回饋制動(dòng)采用的是有源逆變技術(shù)，將再生電能逆變?yōu)榕c電網(wǎng)同頻率同相位的交流電回送電網(wǎng)，從而實(shí)現(xiàn)制動(dòng)。要實(shí)現(xiàn)回饋制動(dòng)，就必須要將回饋電能進(jìn)行同頻同相控制、回饋電流控制等條件，才能將回饋電能安全送達(dá)電網(wǎng)上。并且避免了制動(dòng)時(shí)對環(huán)境及設(shè)備的破壞。在電力機(jī)車等行業(yè)中取得了令人滿意的效果。在新型電力電子器件不斷出現(xiàn),性價(jià)比不斷提高的情況下有著廣闊的應(yīng)用前景。

關(guān)鍵字：直流電機(jī)    回饋制動(dòng)

ABSTRACT

Regenerative braking is one of the frequency converter braking mode, is also a very effective method of energy saving. Regenerative braking is active inverter technology, regeneration of power inverse to AC grid frequency and phase echo power, to achieve the braking. To achieve the regenerative braking, it is necessary to contribute to the power the same frequency with phase control, contribute to the current control conditions, served to contribute to energy security on the network. And avoid braking on the environment and equipment damage. In sectors such as electric locomotives has achieved satisfactory results. In the emerging new power electronic devices, cost-effective case has broad application prospects of continuous improvement.

Keywords: direct-current motor   Regenerative braking