描述

IC698CHS017

变频器在工作上经常会出现震动或者噪音，出现这一问题是什么原因呢?该怎么处理呢?本文具体为大家讲述变频器产生震动和噪音的原因及处理方法。

振动与噪声产生的原因是变频器工作时，输出波形中的高次谐波引起的磁场对许多机械部件产生电磁策动力，策动力的频率总能与某些机械部件的固有频率相近或重合，导致共振。

对震动影响大的高次谐波主要是较低次的谐波分量，在PAM(PulseAmplitudeModulation)，脉冲幅度调制)方式和方波PWM方式时有较大的影响。但采用正弦波PWM方式时，低次的谐波分量小，影响变小。用变频器传动电动机时，由于输出电压电流中含有高次谐波分量，气隙的高次谐波磁通增加，故噪声增大。由于变频器输出中的低次谐波分量与转子固有机械频率谐振，则转子固有频率附近的噪声增大。变频器输出中的高次谐波分量与铁心机壳轴承架等谐振，在这些部件的各自固有频率附近处的噪声增大。变频器传动电动机产生的噪声特别是刺耳的噪声与PWM控制的开关频率有关，尤其在低频区更为显著。采用变频器调速，将产生噪声和振动，这是变频器输出波形中含有高次谐波分量所产生的影响。随着运转频率的变化，基波分量、高次谐波分量都在大范围内变化，很可能引起与电动机的各个部分产生谐振等。

振动与噪声的处理方法减弱或消除振动的方法，可以在变频器输出侧接入交流电抗器以吸收变频器输出电流中的高次谐波电流成分。

使用PAM方式或方波PWM方式变频器时，可改用正弦波PWM方式变频器，以减小脉动转矩。为防止电动机与负载相连而成的机械系统振动，必须使整个系统不与电动机产生的电磁力谐振。一般采用以下措施抑制和减小噪声：在变频器输出侧连接交流电抗器。如果电磁转矩有余量，可将U/f定小些。采用特殊电动机如在较低频的噪声音量较严重时，则要检查与轴系统(含负载)固有频率的谐振。

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Agilestar – SU68CF-AS-1570 – For Marconi – New in Box

Agilestar – SU68CG-AS-1590 – For Marconi – New in Box

Agilestar – SU68CH-AS-1610 – For Marconi – New in Box

Agilestar – SU68CN-AS-1470 – For Marconi – New in Box

Agilestar – SU68CO-AS-1490 – For Marconi – New in Box

Agilestar – SU68CP-AS-1510 – For Marconi – New in Box

Agilestar – SU68CQ-AS-1530 – For Marconi – New in Box

Agilestar – SU68CR-AS-1550 – For Marconi – New in Box

Agilestar – SU68CS-AS-1570 – For Marconi – New in Box

Agilestar – SU68CT-AS-1590 – For Marconi – New in Box

Agilestar – SU68CU-AS-1610 – For Marconi – New in Box

Agilestar – GSFIBER-SFP-30K – Sixnet Networks – NIB

Agilestar – ONS-SI-100-FX – For Cisco – New in Box

Agilestar – HFCT-5760TP – For Aglilent Avago – NIB

Agilestar – HFCT-5760TL – For Aglilent Avago – NIB

Agilestar – E1MG-100FX-IR – For Foundry Networks – NIB

Agilestar – ITV-1KSG-NA-100G – For use in McAfee – NIB

Agilestar – ITV-1KSG-NA-100A – For use in McAfee – NIB

Agilestar – NTTP03BF – For Nortel – New in Box

Agilestar – 3HE00024AA – For Alcatel-Lucent – NIB

Agilestar – 3HE00028AA – For Alcatel-Lucent – NIB

Agilestar – MINIGBIC-1000T – For Alcatel-Lucent – NIB

Agilestar – MGBIC-LC05 – For Enterasys Networks – NIB

Agilestar – FIM32152W47 – For Fujitsu – New In Box

Agilestar – FIM32152W49 – For Fujitsu – New In Box

Agilestar – FIM32152W51 – For Fujitsu – New In Box

Agilestar – FIM32152W53 – For Fujitsu – New In Box

Agilestar – FIM32152W55 – For Fujitsu – New In Box

Agilestar – FIM32152W57 – For Fujitsu – New In Box

Agilestar – FIM32152W59 – For Fujitsu – New In Box

Agilestar – FIM32152W61 – For Fujitsu – New In Box

Agilestar – AT-G8BD-14-AS – For Allied Telesyn – New in

Agilestar – GLC-FE-100FX-RGD-AS – For Cisco – New in Bo

Agilestar – SFP-FE-FX-LX10 – For Redback – New in Box

Agilestar – MGBIC-MT01 – For Enterasys Networks – NIB

Agilestar – 6800-SFP-SX-AS – For Alcatel – New in Box

Agilestar – 808-38105-AS – For IMC Networks – New in Bo

Agilestar – AFCT-5715ALZ-AS – For Agilent-Avago – New i

Agilestar – AFCT-5715APZ-AS – For Agilent-Avago – New i

Agilestar – SF1G-LX6C-47-AS – For FibroLAN – New in Box

Agilestar – SF1G-LX6C-49-AS – For FibroLAN – New in Box

Agilestar – SF1G-LX6C-51-AS – For FibroLAN – New in Box

Agilestar – SF1G-LX6C-53-AS – For FibroLAN – New in Box

Agilestar – SF1G-LX6C-55-AS – For FibroLAN – New in Box

Agilestar – SF1G-LX6C-57-AS – For FibroLAN – New in Box

Agilestar – SF1G-LX6C-59-AS – For FibroLAN – New in Box

Agilestar – SF1G-LX6C-61-AS – For FibroLAN – New in Box

Agilestar – 3HE00027AA – For Alcatel-Lucent – NIB

Agilestar – AS-ZX – For Agilestar – New in Box

Agilestar – ASG-ZX – For Agilestar – New in Box

Agilestar – BTI-MGBIC-GZX-LC-AS – For Telco – New in Bo

Agilestar – SF1G-LX4-AS – For FibroLAN – New in Box

Agilestar – OC48-SFP-SR1 – For Foundry Networks – NIB

Agilestar – E1MTG-SX – For Foundry Networks – NIB

Agilestar – SFP-OC48-LR1 – For Foundry Networks – NIB

Agilestar – GPIM-02-C – For Enterasys Networks – NIB

Agilestar – OAG-SFP-GIG-SX – For Alcatel-Lucent – NIB

Agilestar – OAG-SFP-GIG-T – For Alcatel-Lucent – NIB

Agilestar – OAW-GBIC-T – For Alcatel-Lucent – NIB

Agilestar – SFP-OC48-SR – For Cisco – New in Box

Agilestar – AFCT-5715LZ-AS – For Agilent-Avago – New in

Agilestar – AFCT-5715PZ-AS – For Agilent-Avago – New in

Agilestar – FTLF1324P2BTV-AS – For Finisar – New in Box

Agilestar – LCP-155A4HSRT-AS – For Delta – New in Box

Agilestar – LCP-155B4JSRT-AS – For Delta – New in Box

Agilestar – SFPM1000LZ – For Asante Networks – NIB

Agilestar – 200E-XBR-000077 – For use in Brocade – NIB

Agilestar – 200E-XBR-000083 – For use in Brocade – NIB

Agilestar – 808-38115-AS – For IMC Networks – New in Bo

Agilestar – FCL-8520-3-AS – For Finisar – New in Box

Agilestar – FTRJ1321P1BTL-AS – For Finisar – New in Box

Agilestar 1.25Gbps SFP Transceiver ONS-SI-GE-ZX-AS
One-day shipping available

Agilestar – CWDM-GBIC-1470 – For Cisco – New in Box

Agilestar – CWDM-GBIC-1490 – For Cisco – New in Box

Agilestar – CWDM-GBIC-1510 – For Cisco – New in Box

Agilestar – CWDM-GBIC-1530 – For Cisco – New in Box

Agilestar – CWDM-GBIC-1550 – For Cisco – New in Box

Agilestar – CWDM-GBIC-1570 – For Cisco – New in Box

Agilestar – CWDM-GBIC-1590 – For Cisco – New in Box

Agilestar – CWDM-GBIC-1610 – For Cisco – New in Box

Agilestar – ABCU-5710RZ-MR-AS – For Agilent-Avago – New

Agilestar – SF1G-LX5C-47-AS – For FibroLAN – New in Box

Agilestar – SF1G-LX5C-49-AS – For FibroLAN – New in Box

Agilestar – SF1G-LX5C-51-AS – For FibroLAN – New in Box

Agilestar – SF1G-LX5C-53-AS – For FibroLAN – New in Box

Agilestar – SF1G-LX5C-55-AS – For FibroLAN – New in Box

Agilestar – SF1G-LX5C-57-AS – For FibroLAN – New in Box

Agilestar – SF1G-LX5C-59-AS – For FibroLAN – New in Box

Agilestar – SF1G-LX5C-61-AS – For FibroLAN – New in Box

Agilestar – ONS-SI-100-LX10 – For Cisco – New in Box

Agilestar – 02312189-AS – For Huawei – New in Box

Agilestar – SFP-OC12-SR-AS – For Cisco – New in Box

Agilestar – AGM733 – For use in Netgear – New in Box

Agilestar – E1G-LH – For Foundry Networks – New in Box

Agilestar – OC12-SFP-IR1 – For Foundry Networks – NIB

Agilestar – OC12-SFP-MM – For Foundry Networks – NIB

Agilestar – J4860C – For HP – New in Box

Agilestar – E1MG-LHA – For Foundry Networks – NIB

Agilestar – 1184544P2 – For use in Adtran – New in Box

Agilestar – NTTP02CD – For Nortel – New in Box

Agilestar – NTTP04BF – For Nortel – New in Box

Agilestar – SFP-OC3-SR – Juniper – New in Box

Agilestar – SFP-OC12-SR – Juniper – New in Box

Agilestar – SFP-FE-FX – For Redback – New in Box

Agilestar – SFP-GE-Z – For Redback – New in Box

Agilestar – 15454-GBIC-ZX – For Cisco – New in Box

Agilestar – GLC-BX-D – For Cisco – New in Box

Agilestar – GLC-BX-U – For Cisco – New in Box

Agilestar – GLC-FE-100BX-D – For Cisco – New in Box

Agilestar – GLC-FE-100BX-U – For Cisco – New in Box

Agilestar – SFP-DUAL-MM – For Alcatel-Lucent – NIB

Agilestar – SFP-GE-Z – For Cisco – New in Box

Agilestar – SFP-OC12-IR1 – For Cisco – New in Box

Agilestar – SFP-OC12-LR1 – For Cisco – New in Box

Agilestar – SFP-OC12-SR – For Cisco – New in Box

Agilestar – SFP-OC3-LR1- For Cisco – New in Box

Agilestar – 10058 – For Extreme Networks – New in Box

Agilestar – 10059 – For Extreme Networks – New in Box

Agilestar – 02312189-AS – For Huawei – New in Box

Agilestar – AFCT-5710APZ-AS – For Agilent-Avago – New i

Agilestar – FTLF1321P1BTL-AS – For Finisar – New in Box

Agilestar – SPBD-155E4J1RT-AS – For Delta – New in Box

Agilestar – SPBD-155F4J1RT-AS – For Delta – New in Box

Agilestar – AS-OC12-IR1 – For Agilestar – New in Box

Agilestar – AS-OC12-LR1 – For Agilestar – New in Box

Agilestar – 10053 – For Extreme Networks – New in Box

Agilestar – 2311204 – For use in Huawei – New in Box

Agilestar – 3CSFP97 – For use in 3Com – New in Box

Agilestar – FTLF8528P2BNV-AS – For Finisar – New in Box

Agilestar – AFCT-5764APZ – For Aglilent Avago – NIB

Agilestar – OC-5000-1111 – For Alcatel-Lucent – NIB

Agilestar – 808-38302-AS – For IMC Networks – New in Bo

Agilestar – AFCT-5760TPZ- For Aglilent Avago – NIB

Agilestar – 10063 – For Extreme Networks – New in Box

Agilestar – AFCT-5710PZ-AS – For Agilent-Avago – New in

Agilestar – LCP-4250B4QDRT-AS – For Delta – New in Box

Agilestar – OC12-SFP-SR – For Alcatel-Lucent – NIB

Agilestar – DEM-314GT – For use in D-Link – New in Box

Agilestar – TN-GLC-T – For Transition Networks – NIB

Agilestar – TN-SFP-LX3 – For Transition Networks – NIB

Agilestar – 3CGBIC97 – For use in 3Com – 1000Base-LX

Agilestar – 3CSFP85 – For use in 3Com – 100BASE-BX10-D

Agilestar – 3CSFP9-81 – For use in 3Com – 100BASE-FX

Agilestar – 3CSFP9-82 – For use in 3Com – 100BASE-LX10

Agilestar – GP-SFP2-1F – For Force 10 Networks – NIB

Agilestar – GP-SFP2-1Z – For Force 10 Networks – NIB

Agilestar – FTL-1319-3D-2.5-AS – For Finisar – New in B

Agilestar – FTL-8519-3D-2.5-AS – For Finisar – New in B

Agilestar – HFCT-5701L-AS – For Agilent-Avago – New in

Agilestar – HFCT-5701LP-AS – For Agilent-Avago – New in

Agilestar – SF2G-LX3-5-AS – For FibroLAN – New in Box

Agilestar – F5UPGSFPLXR – For use in F5 Networks – NIB

Agilestar – 808-38223-AS – For IMC Networks – New in Bo

Agilestar – AA1419048-E6 – For Nortel – New in Box

Agilestar – TN-GLC-T – For Transition Networks – NIB

Agilestar – AT-G8BD-13-AS – For Allied Telesyn – NIB

Agilestar – JD498A – For HP – New in Box

Agilestar – 1184561P3 – For use in Adtran – New in Box

Agilestar – BTI-MGBIC-G47-LC-AS – For Telco – New in Bo

Agilestar – BTI-MGBIC-G49-LC-AS – For Telco – New in Bo

Agilestar – BTI-MGBIC-G51-LC-AS – For Telco – New in Bo

Agilestar – BTI-MGBIC-G53-LC-AS – For Telco – New in Bo

Agilestar – BTI-MGBIC-G55-LC-AS – For Telco – New in Bo

Agilestar – BTI-MGBIC-G57-LC-AS – For Telco – New in Bo

Agilestar – BTI-MGBIC-G59-LC-AS – For Telco – New in Bo

Agilestar – BTI-MGBIC-G61-LC-AS – For Telco – New in Bo

Agilestar – BTI-MGBIC-GEX-LC-AS – For Telco – New in Bo

Agilestar – HFBR-5720SL-AS – For Agilent-Avago – New in

Agilestar – HFBR-57R5P-AS – For Agilent-Avago – New in

Agilestar – TEG-GBS40 – For use in TRENDnet New in Box

Agilestar – FCL-8521-3-AS – For Finisar – New in Box

Agilestar – SF155-SMRF13-AS – For FibroLAN – New in Box

Agilestar – SF155-SMRF15-AS – For FibroLAN – New in Box

Agilestar – SF2G-LX3-3-AS – For FibroLAN – New in Box

Agilestar – 3CSFP86 – For use in 3Com – New in Box

Agilestar – 808-38322-AS – For IMC Networks – New in Bo

专业销售进口DCS PLC系统备件模块

PLC模块，可编程控制器，CPU模块，IO模块，AI模块，通讯模块。AB/施耐德/ABB/GE/本特利/西屋/英维斯/霍尼韦尔/黑马/FU克斯波罗

15天包退换一年质保大量现货国内实力库存商家

IC698CHS017

描述

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