【技术】再生电阻和动态制动电阻在保证伺服控制器安全的作用
伺服控制器主电路包括:整流回路、再生制动、逆变回路、动态制动器四部分,电路框图参考如下图1所示。
图1:伺服控制器主电路示意图
下面针对伺服控制器主电路:整流回路、再生制动、逆变回路、动态制动器四部分作用做如下说明:
· 整流回路:实现AC/DC功能,将输入的三相交流电压转换成脉动的直流电压输出。
· 再生制动:当伺服器马达减速时,因机械惯性,马达被带动而成为发电机,电能经续流二极管全波整流后反馈到直流电路。由于直流电路的电能无法通过整流桥回馈到电网,产生的电能仅靠变频器电解电容无法完全消耗,会出现短时间电荷累计,形成“泵升电压”,致使直流母线电压上升。为保证设备安全,需要在制动回路中接一电阻以热能的形式消耗掉此再生的电能,此电阻称为再生电阻,可参考如下图2所示的能量路径。
图2:伺服控制器再生电能能量路径示意图
· 逆变回路:通过采用IGBT模块,生成适合马达转速的频率、适合负载转矩大小的电流,从而驱动马达。
· 动态制动器:当变频器因故障、急停、电源断电等原因出现马达快速停机时,停止后出现的电机动能和线圈里面的磁能将通过变频器的逆变电路形成反向导通现象,这些剩余电能最终会反馈到直流母线上,当直流母线上的电压升高到一定值时,动态制动电阻将投入使用,将此剩余的电能以热量的形式消耗掉,并维持直流母线上电压为正常值。
通过上面的介绍,相信大家对伺服控制器为什么必须使用再生电阻和动态制动电阻有所了解,即:为保证伺服控制器无论正常工作时,因马达减速出现机械惯性形成的再生电能,还是非正常工作出现的停机时,马达需要紧急快速制动而形成的多余电能(动能和磁能),均是对设备的安全性造成无法估量的伤害,严重的将造成设备烧毁。为避免此风险的出现,均需要在伺服控制器中加入再生电阻和动态制动电阻做保护。
下面介绍下如何计算再生电阻的阻值和动态制动电阻的阻值,举例说明如下:
再生电阻的阻值估算
假定输入电源电压Uin=220VAC,再生电阻50Ω,再生回路动作率=0.5%,那么所需要的再生电阻的功率P=【(220√2)2/50Ω】x 0.5%=9.68W,为保险起见,增大5倍,选用50W/50Ω再生电阻。
动态制动电阻的阻值估算
1、 假定75KW的伺服电机,制动电流大约是150A,电机可允许100%的制动电流。一般情况下,可以认为电机的功率乘以2即为电机的额定电流(交流异步电机而言)。
2、 确认电机制动时,在变频器的直流母线电压。这个参数可以考虑一个范围,最小620VDC,最大750VDC
3、 计算电阻值,欧姆定律,电压除以电流等于制动电阻。电阻的功率一般选1.5~3倍的电机额定功率,选1.5倍时,制动是间歇的,选3倍时,制动是频繁的。
最后,提及一下,世强有代理TT Electronics、ISA电阻等产品线,性能优异、库存丰富,被广泛应用于工业、航空航天、医疗、汽车、消费等市场,产品线电阻齐全,感兴趣可以下载选型手册。
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目录- Company Introduction Optoelectronics Discrete Components Optoelectronics Standard Assemblies Optoelectronics hybrid Components Surface Mount and Chip Carrier OEM Pressure Sensors High-Reliability JAN Isolators/ COTS Fiber Optics VLEDs Steering Torque and Position Sensors Level Sensing Products Pressure Transducers and Transmitters Flush Mounting & Abrasive Media Submersible Transducers and Transmitters Flowmeters Temperature Instrumentation Calibration Services
型号- OP604ESA-B1,OP604ESA-B2,OP803TX,PB-AIVAC-0001-C-G,OP224,OPB930W51Z,OMH3019,3C91CTX,OPB700ALZ,P170SP1,OMH3131,OP223TX,OPB871P51TX,P270,OPB970N51,OPR5011,OMH304,2N2222AUBTXV,43LF,HCC242,SX-4431,OPB847TXV,OPB872N51TX,SX-4432,OP803SL,OPB872T55TX,HCC240,SX-4433,GPB-AIVAC-005-D-G,P160KNPD,OPI1264B,OPI1264A,OPI1264C,OPF372A,OMH307,OPB871P51TXV,OP235TX,OPB870N51TXV,2N2222AUATXV,A,OPB971N51,B,OPV332,C,D,SX-4300,E,PB-AIVAC-0001-B-G,4N49UTX,SX-4428,SX-4429,OPB870P11TX,OPB390L11Z,OPB811W55Z,5711,OPI150,OPB810W51Z,5713,OPB983T51Z,OP224TX,OPB870L11TXV,OPR5910T,OP535B,OPB848TX,P170SPD,PB-AIVAC-001-A-G,OPB815WZ,PSXX-2,OPB872L55TXV,SX-4413,OPF2412,SX-4414,PSXX-1,SX-4417,OPB871T51TXV,OP236TX,2N5794UTXV,OPB870N11,OPB872T11TXV,OPL550,OPI1268,OMH3150B,OPI1266,OPB350W062Z,SX-4487,PB-AIVAC-0001-A-G,OPB930W55Z,OPB848TXV,OPB885Z,OMH3040S,OPB870T11TXV,OPB704WZ,OPB871N55TXV,PB-AIVAC-005-E-G,OPR5011T,5611,5613,OMH3040B,OPB847TX,SX-4475,SX-4476,SX-4473,OP505A,SX-4474,SX-4479,OPB872T11TX,OPB100-SZ,PB-AIVAC-001-B-G,OP805SL,OMH3075S,OP132,OPB365T55,3C92CTX,OPB872T55TXV,OPB990T51Z,OPB701ALZ,OPB730F,OPB350,OPB810L51,OMH3075B,OPB872L55TX,OP804TX,OPB200,2N6989UTX,SX-440,OPB870P55TX,2N5794U,OPB871L51TXV,P170N2,OPB822SD,OVS5MGBCR4,OPB961N51,OMH3150,EN12-HS,OP604ESA-C2,OP604ESA-C3,PSXXM,PSXXL,EN16-H,PB-AIVAC-001-C-G,OP232,4N48UTX,OP233,EN16-V,OPF370A,5401,PB-AIVAC-002-A-G,OMH3020,5403,OP805TX,4N23(A)(U),OPB821TXV,OPB872P51TX,OPB980L55Z,OP804TXV,OP224S,OPB825,OPB704,OPI110C,OPB982P51Z,OP181,OPB870P55TXV,OPB832W55Z,OPB871T55TX,OPB711,OP603TX,OP265FAB,5311,2N2222AUB,2N2222AUA,OP604TXV,OPB870N11TX,3371,OPB990P51Z,7601,7603,OPI150TX,OPB870T51TXV,OP234W,OP603TXV,OPB804,OVSRRGBCC3TM,OPB829DZ,OPB961T51,OPB992T51Z,OVQ12S30W7,P120PK,OPB872N55TX,P170NP1,OP550A,OPB821TX,EN11-HSM,OPB720B-30VZ,OPR2100HST,OP602TX,OMH090S,OPB818,OPB829CZ,EN11-HSB,P140KH,OPB700TX,OMH090B,HCC242TXV,OPB821S5Z,OPV310Y,OPB745,6671,6673,5101,OPB620,5103,P160KN/KN2,HCT7000MTXV,OPB625,SX-4404,PS45G,OPB627,OPB890P51Z,OPB733TR,OH090U,GPB-AIVAC-002-D-G,OPB831W55Z,OPB983P51Z,OPB970N11,4N24(A)(U),OPB870N55TX,OPB871P55TXV,HCC240TXV,OPB910W55Z,OPL530,OPV314,OPB100Z,OPB872P55TXV,3N261TX,OPB870P51TX,EN11-VSM,OPB755TZ,OPI120TXV,OPB871L51TX,OPR5925,OPB390P11Z,OPB870P11TXV,2N5794UTX,OPB610,OP604TX,OP803TXV,OPB730,4N22(A)(U),2N4854UTX,OPI123,2N6989UTXV,OPI125,OPR5915,OPI126,OPI127,OPR5910,OPR5911,OPV314Y,OPR5913,OPI120,OP906,OPB820S10,4N24UTXV,3N262TX,2N6987URXV,OPB870T55TX,OPB608B,OPB980T55Z,OPB608A,OPB608V,OPB870L11TX,OPB871T51TX,2N2222AUATX,2N4854UTXV,PB-AIVAC-0004-E-G,6121,6124,6126,OPB911W55Z,OPB706A,OPB872N55TXV,PB-AIVAC-003-D-G,4N47UTXV,OPB870L51TXV,OPB870N11TXV,OPB718Z,OPB872T51TXV,OP223TXV,4N22U,OP593A,OPB830W55Z,OPB815L,OPB871L55TXV,6373,22,23,P090S,7221,25,7223,4N22UTX,3N263TX,P090L,OPB870N51TX,6371,OVSARGB4R8,OPB390T51Z,OPB680-20,OPB872P51TXV,4N47U,7216,6127,OPL800TX,OP166A,2N2222AUBTX,PB-AIVAC-0004-D-G,OPB903W55Z,6143,OPB871N51TXV,OP913WSL,OPB840W11Z,PB-AIVAC-003-E-G,OPB716Z,OPB872P55TX,OPB732WZ,4N48U,OP235TXV,OP240B,OP240A,4N24U,6138,3C92CTXV,6153,44,6273,9301,7483,45,OP245A,7486,3C91CTXV,9303,GPB-AIVAC-010-D-G,OP232W,P09XS,OPB870T11TX,OPB891T51Z,7481,P09XN,4N23UTXV,OPB870L55TX,4N49U,OVS5MBBCR4,OP245B,OPR5500,OPB912W55Z,OPI120TX,PB-AIVAC-0004-C-G,6163,OPB460N11,OPB840L11,2N2907AUBTX,2N5796UTX,P170NPD,4N48UTXV,OP805TXV,OP233W,OPB880P51Z,OPR2100,OMH3019S,OPR2101,62,OPB830W11Z,2N4854U,64,66,67,68,7386,OPB390T55Z,OP133W,OPB350W125Z,OP266W,OPB828D,OPR2100HS,OMH3019B,6173,7383,OPB870N55TXV,OPB816Z,HCT802TXV,OPB871L55TX,OPB870T55TXV,72,OPF482,OPB872L51TXV,6186,7274,78,7276,OPB380P55Z,OPB933W51Z,PB-AIVAC-0004-B-G,OPB840W55Z,OP602TXV,OPR2100T,OPB871T55TXV,OPB871N51TX,82,83,84,OPB100-EZ,OPB870T51TX,7286,OHB3040,7288,SX-4289,4N47UTX,4N24UTX,3N243TX,OPB913W55Z,OPI150TXV,2N5796U,OP224ESA-B2,OPB973N51,OP224ESA-B1,OP980,7284,OP224ESA-B3,OMH3020S,EN12-VS,OPB991L51Z,4N49UTXV,PB-AIVAC-005-C-G,OPB720B-12Z,93,8146,OHB3040B,OPB871P55TX,OMH3020B,PB-AIVAC-0004-A-G,8148,OPB880T51Z,PB-AIVAC-001-D-G,4N22UTXV,OP224ESA-C1,OP802WSL,OPB872T51TX,OP224ESA-C3,OP224ESA-C2,PB-AIVAC-010-A-G,OPB800W51Z,2N2907AUBTXV,OHB3040S,PB-AIVAC-002-B-G,OPB990T55Z,OPB710F,OP800A,OPB940W51Z,HCT802TX,8156,OPR5200,8154,OPL800TXV,SX-4388,P110KV/KVI,OP506B,OP506A,HCC240TX,3N244TX,8152,4N48(A)(U),P08XS,OPB943W51Z,8151,OVSRRGBCC3,P08XN,OPB700TXV,2N2907AUATXV,2N5796UTXV,OP291A,GPB-AIVAC-010-E-G,OPB800L55,PB-AIVAC-005-B-G,OPB871N51,SX-4491,OPB840W51Z,OPB811L55,4N49(A)(U),PS60G,P170S,OPR2800V,OPB870L51TX,PB-AIVAC-001-E-G,OPR2800T,2N2907AUATX,P170N,OP950,PS100-2,OMH3150S,PS100-1,OP604S,PB-AIVAC-003-A-G,P170S2,P09X5N,PB-AIVAC-002-C-G,OPB901W55Z,OP580DA,OPB842W51Z,2N6987UTX,OPB990L51Z,PB-AIVAC-0001-E-G,3N245TX,OPB857Z,P160KNP,OPB822S,2N2907AUA,PB-AIVAC-005-A-G,2N6987U,OP236TXV,OPB870P51TXV,2N2907AUB,OP140A,P230,OPB870L55TXV,OPB941W51Z,4N47(A)(U),OVS5MRBCR4,P261P,PB-AIVAC-010-C-G,P140KH1,PB-AIVAC-003-B-G,OP298A,OPI125TXV,OPB350L062,OPB872N51TXV,OPB871N55TX,OP225TXV,OPF522,P260T,OPB872L51TX,PB-AIVAC-0001-D-G,OPB900W55Z,P260S,P260P,89/90,OPB350W250Z
ISABELLENHUETTE New IEM DC Energy Meters Offers Convenience and Maximum Precision for up to 1.5MW
ISABELLENHUETTE IEM DC energy meters enables efficient use in various charging infrastructure applications, such as DC wallboxes, high-power chargers, megawatt charging systems and other applications as well as smart metering point operation.
产品 发布时间 : 2024-06-25
TT Electronics(TT)专业音频应用的面板电位器/编码器/滑动电位器选型指南
目录- Panel Potentiometers and Encoders Product Introduction Panel Potentiometers Encoders Slide Potentiometers Panel Potentiometers/encoders/Slide Potentiometers Applications
型号- P140KV,EN12-VS,P170SP1,P272,P271,P170SNPD,P270,EN12-VN,P160 SERIES,P265S,P160KNPD,P265P,P120K,P09X SERIES,P260,P09X,EN09H1020ASF012,P110KV1,P090S,P165,P090L,P110KH,P120PK,EN09H1020ANFW012,P170NP1,EN11-HSM,P170SPD,LM1001,PSXX-2,P110KV,P278,P170S,PS60G,PSXX-1,P140KV1,P170N,P166V,EN11-VNM,PS100-2,EN11-HSB,PS100-1,P166P,P140KH,P170S2,P162,P161,P166H,P270 SERIES,P164,EN11-VNB,P09X5N,P163,P160,P232 SERIES,P231 SERIES,EN11-HNB,P090S SERIES,P09XS,EN05VS,P230 SERIES,EN05VT,PSL2,P160KNP,PS45G,P09XN,P230,PSS1,PSS2,P261S,EN11,EN12,P261P,EN16,P160KN,P140KH1,P261D,P260 SERIES,P090 SERIES,EN09V1020ASKS115,P260T,P260S,P260P,EN11-VSM,P170N2,P090,P260D,EN12-HN,EN05HS,EN11-VSB,EN09B1020ANKW200,EN12-HS,P232,PSXXM,P231,P233,PSXXL,EN16-H,P110KH1,P090L SERIES,EN16-V,EN11-HNM
【选型】ISABELLENHUETTE(伊莎ISA) 精密合金选型指南
型号- ISA®CHROM 30,A¬COPPER 2.5,ISA¬ZIN,ISA® 13,ISA®SIL,ZERANIN® 30(2),ISAZIN,PURE NICKEL,ALLOY 30,ACOPPER 11,ISA®CHROM 60,S¬COPPER,RESISTHERM®(2),ISA¬CON®,S-COPPER,ISA®¬CHROM 60,ISAZIN,ISACON®,ISA®CHROM 80,ISATHERM® MINUS,NOVENTIN®,ISABRAZE®,SUPER PURE NICKEL,ISA®SIL,NICKELIN W,SCOPPER,ISA®CHROM 30,ECOPPER,ISA®MINUS,ISA®¬NICKEL,NIFE28,ISA®¬CHROM 30,ALLOY 127(2),ISA®NICKEL,ALLOY 90,PURE NICKEL(1),ISATHERM® PLUS,NICROSIL,ZERANIN®30,ISATHERM®MINUS,ISA®CHROM 80,E¬COPPER,ISA®13,ACOPPER 2.5,ISA® MINUS,NICKEL 99.2,ISA®NICKEL,MANGANIN®,ISA®¬CHROM 80,ALLOY 60,RESISTHERM®2),ISA®¬SIL,IRON,ISACON,ISABRAZE,A¬COPPER 11,ISA®CHROM 60,ISAOHM®,NISIL,SPECIAL NICKEL,ISA¬BRAZE®,ACOPPER 2.5,ACOPPER 11,ALLOY 127,CENTANIN®,ISOTAN®,ISATHERM®PLUS,ECOPPER
【选型】TT Electronics(TT)ABCIRP模块化卡口锁连接器选型指南
目录- Company Profile and Modular Bayonet Lock Connector Introduction Technical Information and Part Number Explanation Insulators Seal Grommet Crimp Contacts Receptacle/Plug Connector Locking Backnut Adapter/Extender Cable Clamp and Bushing Gasket and Nut Plates Receptacle Mounting Detail Metal Protective Caps and Braid Strap Connector Supplementary Tooling Connector Safety Information
型号- ABCIRPSE22FS,P80 16 GET,ABCIRP12/14KPKP3,ABB-24-#GA-#M32,ABCIRP40-A60GSS,CMSP3057C**M32,ABBP8/16KSKP80,ABCIRP16/14KPKP3,ABCIRP40-A60GSL,ABCIRP16/22KLKP3,ABCIRP24-10PFS,ABCIRP28-21GSL,P8028GAT,ABBE**XPCAK,ABBP100KPKP80,ABCIRP12/40KLKP3,ABCIRP12/10KLKP3,ABCIRP18-19S,ABCIRP20-15GPL,ABCIRPPSE06T,ABCIRP03T,ABBMBS035015,ABCIRP40-A60S,ABCIRP24-10S,FT8,ABBP**/**KPKP80,ABCIRP20-15GPS,ABCIRP22-14PFS,ABCIRP32-A13GSL,ABBE**XPCA,ABCIRP22XR,ABCIRP36-A22S,ABCIRP32-A13S,ABCIRP12/18KLKP3,68-016-01,ABCIRP32-A13GSS,P80 8 ETA,ABCIRP18-19GPL,ABBP100KSKP80,ABCIRP22-14GPS,ABCIRP22-14GPL,ABCIRP32-A13GPS,ABCIRP36-A22GPS,ABCIRP12KLKP3,ABCIRP28XR,ABCIRP20-15S,ABCIRP24XR,SB ** RPGS,ABCIRP12/20KPKP3,ABCIRP36IC,ABCIRP36-A22GPL,P80 16 ITL,ABCIRP18-19PFS,ABB608109,ABCIRP20IC,ABCIRP28-21PFS,ABCIRP40-A35PFS,ABCIRP40-A60PFS,ABBD51,ABBMBS050015,ABCIRP**/**KLKP3,ABCIRP16/20KPKP3,ABB12KFPF80,ABBPL0550A1130,ABBP8/12KPKP80,ABCIRP16/18KLKP3,P80 16 ETA,ABCIRP32-A13GPL,ABB600061,6M3800644,ABCIRP28-21GSS,ABCIRP28IC,ABCIRP,6M3800645,ABBP100/60KPKP80,ABB-20-#GA-#M32,ABCIRP24IC,6M3800646,ABCIRP09T,ABBMKM1050,ABB600052,67-012-01,SBMSH554,ABB600057,ABCIRP24-10GPL,ABB600058,AB-CIRP03LBN2214GPSPFS****VON,WA27F,ABCIRPSE24FS,ABCIRP22-14S,ABBP100/60KSKP80,ABCIRP16/22KPKP3,P80 12 ITL,ABCIRPSE20FS,ABCIRP40-A35GSS,6M3800730,6M3800731,ABCIRPSE28FS,ABCIRP24-10GPS,ABCIRP18IC,ABB-18-#GA-#M32,ABMRP0925,ABB8KFPF80,ABBTH592,ABCIRP32XR,P80 12 ETA,ABCIRP18-19GSL,ABCIRP40IC,ABCIRP18-19GSS,P8018GAT,ABCIRP40-A35GSL,ABCIRP12/40KPKP3,ABBP**/**KSKP80,ABB16KFP,ABCIRP20-15PFS,ABCIRPSE36FS,ABCIRP16/18KPKP3,ABCIRPSE32FS,ABCIRP40-A60GPS,ABCIRP12/10KPKP3,ABCIRP36-A22PFS,ABCIRP40-A60GPL,SB ** FPGS,ABCIRP36XR,ABCIRP28-21S,ABCIRP20XR,ABCIRP32IC,ABBMBS025015,68-012-01,ABCIRP12/18KPKP3,SBMSH554**,ABB601200,ABCIRP8/40KPKP3,ABBP8KSKP80,SB ** FPG,ABCIRP20-15GSL,ABCIRPSE06T,ABCIRP18-19GPS,ABCIRP28-21GPS,ABCIRPSE40FS,ABCIRP20-15GSS,CMSP3057A,SB ** RPG,ABCIRP12/20KLKP3,CMSP3057C,ABCIRP28-21GPL,ABBP8KPKP80,CMSP3057A**M32,ABCIRP24-10GSL,ABCIRP12KPKP3,ABCIRP22IC,ABCIRP16/20KLKP3,ABBMBS020010,P80 12 GET,HT250-3,ABCIRP12/16KPKP3,ABCIRP16KPKP3,TH592,ABBP8/16KPKP80,ABCIRP22-14GSS,D51,ABCIRP36-A22GSS,ABBFT8,ABCIRP40-A35GPS,ABCIRP22-14GSL,ABCIRP**/**KPKP3,ABCIRP24-10GSS,ABWA27F,ABCIRP36-A22GSL,ABCIRP18XR,ABCIRPSE18FS,ABB**EPCA,ABB**EPCAK M32,ABCIRP40-A35S,ABBP8/40KSKP80,ABBP8/12KSKP80,ABCIRP32-A13PFS,ABB-32-#GA-#M32,ABCIRP40XR,ABCIRP12/14KLKP3,ABCIRP40-A35GPL,67-016-01,ABB600090
【应用】ISABELLENHUETTE的合金电阻SMT-R050-1.0在光测试版的应用,功率高达7W
客户在光测试系统中需要的规格参数为大功率电阻选型需求,在70~80摄氏度温度下能够到5W、封装2817、表贴、电阻50mΩ,工作温度-55-105℃,温漂为100PPM 即可,只有ISABELLENHUETTE的合金电阻合适。
应用方案 发布时间 : 2022-04-15
电子商城
现货市场
品牌:TT Electronics
品类:Low Resistance Metal Alloy Resistors
价格:¥0.7268
现货:160,000
品牌:TT Electronics
品类:Low Resistance Metal Alloy Resistors
价格:¥0.7268
现货:107,900
品牌:TT Electronics
品类:Wirewound Power Radial Terminal Resistors
价格:¥29.9250
现货:22,389
品牌:TT Electronics
品类:Wirewound Power Radial Terminal Resistors
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品牌:TT Electronics
品类:Wirewound Power Radial Terminal Resistors
价格:¥16.0569
现货:42
品牌:TT Electronics
品类:Wirewound Power Radial Terminal Resistors
价格:¥17.9550
现货:7
服务
可定制位移传感器量程范围10~600mm,该YWD型位移传感器表面有带刻度的透明窗☐,每毫米的变化量误差不超过3ue/mm,可在静态、准静态和低频动态下工作。主要指标:非线性<0.2%;供桥电压<10v;测试精度:0.01mm。
最小起订量: 1 提交需求>
配备KEYSIGHT网络分析仪,可测量无线充电系统发射机/接收机线圈的阻抗,电感L、电阻R、电感C以及品质因数Q,仿真不同充电负载阻抗下的无线充电传输效率。支持到场/视频直播测试,资深专家全程指导。
实验室地址: 深圳 提交需求>
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