1791D-16B0 |
1791D-16V0 |
1791D-16V0X |
1791D-30CMCBL |
1791D-4CMCBL |
1791D-8V8P |
1791DS-IB12 |
1791DS-IB16 |
1791DS-IB4XOW4 |
1791DS-IB8XOB8 |
1791DS-IB8XOBV4 |
1791ES-IB16 |
1791ES-IB8XOBV4 |
1791-N4C2 |
1791-N4V2 |
1791-NDC |
1791-NDV |
1791-TB2 |
1792D-0B4D |
1792D-0B8D |
1792D-0VT16E |
1792D-12BT4PE |
1792D-12BVT4D |
1792D-16BVT0CD |
1792D-16BVT0D |
1792D-4BV0D |
1792D-4BV4D |
1792D-4BVT4D |
1792D-88HC |
1792D-88HCCON |
1792D-8BIO8E |
1792D-8BT8PE |
1792D-8BV0D |
1792D-8BVT0D |
1792D-8BVT8CD |
1792D-8BVT8D |
1792D-CB12 |
1792D-CB18 |
1792D-CB18JP |
1792D-CB18P |
1792D-CBFM |
1794-ACN |
1794-ACNR |
1794-AENT |
1794-APB |
1794-ASB |
1794-ASB2 |
1794-ASBLT |
1794-CE1 |
1794-CE3 |
1794-CJC2 |
1794-IA16 |
1794-IA8 |
1794-IA8I |
1794-IB10XOB6 |
1794-IB16 |
1794-IB16D |
1794-IB16XOB16P |
1794-IB32 |
1794-IB8 |
1794-IC16 |
1794-ID2 |
1794-IE12 |
1794-IE4XOE2 |
1794-IE8 |
1794-IE8XOE4 |
1794-IF2XOF2I |
1794-IF4I |
1794-IG16 |
1794-IH16 |
1794-IJ2 |
1794-IM16 |
1794-IM8 |
1794-IP4 |
1794-IR8 |
1794-IRT8 |
1794-IT8 |
1794-IV16 |
1794-IV32 |
1794-LBL |
1794-N2 |
1794-NM1 |
1794-OA16 |
1794-OA8 |
1794-OA8I |
1794-OB16 |
1794-OB16D |
1794-OB16P |
1794-OB32P |
1794-OB8 |
1794-OB8EP |
1794-OC16 |
1794-OE12 |
1794-OE4 |
1794-OF4I |
1794-OG16 |
1794-OM16 |
1794-OM8 |
1794-OV16 |
1794-OV16P |
1794-OV32 |
1794-OW8 |
1794-PS13 |
1794-PS3 |
1794-TB2 |
1794-TB3 |
1794-TB32 |
1794-TB32S |
1794-TB37DS |
1794-TB3G |
1794-TB3GK |
1794-TB3GS |
1794-TB3K |
1794-TB3S |
1794-TB3T |
1794-TB3TS |
1794-TB62DS |
1794-TBKD |
1794-TBN |
1794-TBNF |
1794-TBNK |
1794-VHSC |
21T-179615-905-900 |
1397-179679-A02 |
1796-AFRAME |
1796-CNET32 |
1796-DNETHW23 |
1796-DNETHW33 |
1796-DNETHW34 |
1797-ACNR15 |
1797-BCNR |
1797-BIC |
1797-BOOT |
1797-CE1S |
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新聞:AB模塊1760-PICOPROMO1現(xiàn)貨但采用正弦波PWM方式時(shí),低次的諧波分量小,影響變小。減弱或消除振動(dòng)的方法是在變頻器輸出側(cè)設(shè)置交流電抗器,以吸收變頻器輸出電流中的高次諧波電流成分。使用PAM方式或方波PWM方式變頻器時(shí),可改用正弦波PWM方式變頻器,以減小脈動(dòng)轉(zhuǎn)矩。電動(dòng)機(jī)振動(dòng)的原因可分為電磁與機(jī)械兩種。1)電磁原因引起的振動(dòng)表現(xiàn)為:較低次的諧波分量與轉(zhuǎn)子的諧振,使固有頻率附近的振動(dòng)分量增加。由于諧波產(chǎn)生的脈動(dòng)轉(zhuǎn)矩的影響發(fā)生振動(dòng),特別是當(dāng)脈動(dòng)轉(zhuǎn)矩的頻率同電動(dòng)機(jī)轉(zhuǎn)子與負(fù)載構(gòu)成的軸系扭轉(zhuǎn)固有頻率一致時(shí)將發(fā)生諧振。