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罗宾康 完美无谐波系列高压变频器 高电压工程公司附属公司

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Presentation on theme: "罗宾康 完美无谐波系列高压变频器 高电压工程公司附属公司"— Presentation transcript:

1 罗宾康 完美无谐波系列高压变频器 高电压工程公司附属公司
A Subsidiary of High Voltage Engineering Corporation 完美无谐波系列高压变频器 Perfect Harmony Series Medium Voltage Drives 1

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3 高电压工程公司 电气自动化控制系统 电力电子产品 电动机/发电机

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7 Installed Base Summary-MV Drives
Sales History-Units Major Regions-Units Major Markets-Units Power Rating (kW)-Units

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10 PERFECT HARMONY 完美无谐波变频器
单元串联多电平PWM高压变频器 最先使用IGBT的高压变频器,本质上满足 IEEE 对电压电流谐波失真的要求

11 完美无谐波高压变频器 全球范围内超过1100台销售业绩 输入谐波优于IEEE 519 1992标准
97% 系统总体效率(包含变频器和变压器部分) 几乎完美正弦输出波形(无需输出滤波器) 体积最小的高压变频器 模块化设计,冗余设计,空冷,水冷,多电机运行 . 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 12000 13000 14000 15000 16000 17000 18000 19000 20000 21000 22000 23000 24000 25000 2.3KV 3.3KV 4.2KV 6.6KV 7.2KV 13.2KV Air Cooled Liquid Cooled

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13 A N C B PERFECT HARMONY CONCEPTS 完美无谐波变频器设计原理
THESE SOURCES ARE IN PHASE AT ZERO DEGREES LAG ANGLE IN PHASE AT 240 IN PHASE AT 120 2400 VOLTS LINE-TO-NEUTRAL 相电压 4160 VOLTS LINE-TO-LINE 线电压 PERFECT HARMONY CONCEPTS 完美无谐波变频器设计原理 A 4160 VOLT SUPPLY CAN BE ASSEMBLED FROM 480 VOLT SOURCE 4160V的输出可以通过480V单元的叠加形成, 6000V 的输出则由630V 单元的叠加形成 A B C N

14 PERFECT HARMONY 完美无谐波变频器拓扑图
4160 VOLT DRIVE TOPOLOGY LEAD 24 POWER CELL A1 LEAD 24 POWER CELL B1 LEAD 24 POWER CELL C1 LEAD 12 POWER CELL A2 LEAD 12 POWER CELL B2 LEAD 12 POWER CELL C2 NO SHIFT POWER CELL POWER INPUT A3 3 PHASE AC ANY VOLTAGE NO SHIFT POWER CELL B3 NO SHIFT POWER CELL C3 LAG 12 POWER CELL A4 LAG 12 POWER printed CELL B4 LAG 12 POWER CELL C4 LAG 24 POWER CELL A5 LAG 24 POWER CELL B5 LAG 24 POWER CELL C5 4160 VAC INDUCTION MOTOR

15 PERFECT HARMONY 完美无谐波变频器拓扑图
2400 VOLT DRIVE TOPOLOGY POWER CELL A1 POWER CELL B1 POWER CELL C1 POWER CELL INPUT POWER A2 3 PHASE AC, ANY VOLTAGE POWER CELL B2 POWER CELL C2 POWER printed CELL A3 POWER CELL B3 POWER CELL C3 2300 VAC INDUCTION MOTOR

16 CURRENT HARMONICS OF VARIOUS DRIVES 不同变频器的输入电流谐波比较
THE FOLLOWING HARMONIC DISTORTION FIGURES ARE TYPICAL VALUES FOR VARIOUS VFD FORMATS. VALUES BASED ON ASSUMED POWER SOURCE

17 PERFECT HARMONY CONCEPTS 完美无谐波变频器概念 AC Line Current Spectrums 电流谱
Comparison of Diode/Capacitor Versus 二极管/电容系统 和 SCR/Choke Input (10%Source Reactance) 可控硅/扼流圈系统的比较 Percent of Fundamental Amperes 基波电流百分比 2 5 2 1 5 1 5 5 7 1 1 1 3 1 7 1 9 2 3 2 5 2 9 3 1 3 5 3 7 Harmonic Number谐波次数 Diode/Capacitor 二极管/电容 SCR/Choke 可控硅/扼流圈

18 PERFECT HARMONY CONCEPTS 完美无谐波变频器概念
INPUT WAVEFORMS AT 6000 VOLTS, FULL LOAD 满载时输入波形

19 Harmonic Distortion 谐波失真
Robicon Perfect Harmony Drive vs. Conventional Current Source Drive Conventional Current Source Inverter 普通电流源变频器 Voltage电压 Current电流 Total Harmonic Distortion Current = 25 % 电流失真 Total Harmonic Distortion Voltage = 10 % 电压失真 Robicon Perfect Harmony Drive 完美无谐波变频器 Voltage电压 Current电流 Total Harmonic Distortion Current = .8% 电流失真 Total Harmonic Distortion Voltage = 1.2% 电压失真 1000 HP VFD, 1100 KVA 5.75 % Impedance Source

20 IEEE 519 Table 10.3 Current Distortion Limits for General Distribution Systems IEEE519对电流失真的限制要求
Isc/Il < 11 (5, 7) 11<=h<17 (11, 13) 17<=h<23 (17, 19) 23<=h<35 (23, 31) 35 <=h (35 up) TDD < 20 4.0 2.0 1.5 0.6 0.3 5.0 20<50 7.0 3.5 2.5 1.0 0.5 8.0 50<100 10.0 4.5 0.7 12.0 100<1000 5.5 15.0 > 1000 6.0 1.4 20.0

21 ADDITIONAL COMPONENTS REQUIRED FOR A CSI VFD TO DUPLICATE
PERFECT HARMONY INPUT HARMONICS PERFORMANCE 电流源变频要达到完美无谐波变频所需附加的设备

22 PERFECT HARMONY CONCEPTS 完美无谐波变频器概念 POWER CELL SCHEMATIC 功率单元结构图
Q1 Q3 + DEDICATED 1 T2 POWER 460 VAC 2 OUTPUT WINDING + T1 OF CELL ON POWER 3 TRANSFORMER Q2 Q4 LOCAL FIBER OPTIC CONTROL LOCAL CONTROL CIRCUITS SIGNALS TO AND POWER FROM MASTER CONTROL

23 PERFECT HARMONY CONCEPTS 完美无谐波变频器概念
ADDITION OF THREE CELL OUTPUTS TO GET PHASE VOLTAGE 三个单元输出的叠加得到一相的电压 (以 2400V 输出为例) CELL 1 单元 1 CELL 2 单元2 CELL 3 单元3 COMPOSITE 合成

24 PERFECT HARMONY 完美无谐波变频器 OUTPUT WAVEFORMS AT 6000 VOLTS, 50 HZ输出波形

25 每相 5 单元串联完美无谐波变频器满载输出电压频谱
1 1000 HZ PER DIVISION

26 printed Torque Pulsations转矩脉动
Robicon Perfect Harmony Series @ 30 hertz, full load 完美无谐波变频在满载 30HZ时情况 Rated Torque (%) 额定转矩% printed Pulsation Frequency in Hz 脉动频率

27 Torque Pulsations 转矩脉动 6 pulse CSI @ 30 hertz, full load
6脉冲电流源波变频在满载 30HZ时情况

28 printed Measured Power Factor 输入功率因数
Robicon Perfect Harmony Series vs. Convential CSI Perfect Harmony完美无谐波变频 Power Factor (%) 功率因数 Conventional CSI普通电流源变频 printed Percent Load 负载百分比 Total power factor includes distortion and displacement power factor.

29 printed System Efficiency 系统效率
Robicon Perfect Harmony Series vs. Traditional CSI 1 9 8 9 6 Perfect Harmony 完美无谐波变频 9 4 9 2 Efficiency (%) 效率 9 8 8 6 Conventional CSI普通电流源变频 printed 8 4 8 2 8 1 2 3 4 5 6 7 8 9 1 Percent Load 负载 System efficiency includes isolation transformer, harmonic filter, power factor correction and drive.

30 EFFECT OF POWER SYSTEM ON PERFECT HARMONY 电源变化对 完美无谐波变频器 的影响
RIDE THROUGH VOLTAGE SAG OF - 30% 可承受 -30%的电压下降 RIDE THROUGH TOTAL POWER LOSS FOR 5 CYCLES 可承受5个周期的电力丧失 RE-START INTO A MOTOR WHICH IS STILL SPINNING 电机还在旋转的情况下可重新起动

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32 Perfect Harmony 完美无谐波变频 5 Cycle Power Loss Ride-Through
@ 100% Load 满载时5个周期失电输出波形情况

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34 Next Generation Control
新一代全数字控制系统

35 Control Features 控制特点 Digital Modulator
Adjustable IGBT switching frequency ( Hz) Auto-Tuning: Motor parameter estimation, controller gains calculation Open Loop Vector Control Dual-Frequency Braking Transparent Cell Bypass Energy Saver

36 Control Features Input Processing
Volts-per-hertz Control for parallel motors Synchronous Transfer Torque Mode Operation Operation with output filter (to be implemented) Synchronous Motor Control Closed Loop Vector Control

37 Next Gen Control Robicon Tool Suite
High Speed Motor Support (to 330Hz) Multiple language support: English, Italian ,Spanish, German, French, Chinese, Japanese Tool Suite enhancements based on added features (Debug view ports) Open winding/multiple phase motor support IEC 1131 System program.

38 Next Gen Control Hardware Chassis with covers

39 Next Gen Control Hardware Chassis less covers
Modulator Bd Communications Bd CPU Bd FIBER Optic Bd System Interface Bd Analog to Digital Bd

40 Next Gen Control Hardware CPU Board front view
Chipset: Intel ® 430 TX VGA Ethernet User I/O Intel Pentium ® MMX CPU 266 MHz Keyboard

41 Next Gen Control Hardware CPU Board rear view
CompactFlash™ Module 16MB SDRAM Module 64MB

42 “Drive Tool” 图形窗口 基于Windows的图形界面(95, 98, 2000,NT) PC运行 键盘菜单 参数设定 变频器状态

43 Parameter Value Entry

44 Fault/Alarm Log

45 Input Processing Input side Metering functions RMS values
Power, Energy, Power Factor Input current THD (approximate) Individual Harmonics (accurate) Drive Efficiency (approximate) Excessive drive losses detection : alarm/fault Input single-phase detection and rollback Input rms current (xformer thermal) rollback Input voltage magnitude and phase monitoring for Synchronous Transfer and under-voltage rollback

46 Auto-Tuning Automatic motor parameter estimation in two stages Stage 1
Motor does not spin Stator resistance and Leakage inductance are estimated Current Loop Gains are calculated and saved Stage 2 Motor spins to 30% speed Requires that the load be decoupled from the motor Motor No-load Current and Inertia are estimated Flux Loop and Speed Loop Gains are calculated and saved

47 Dual-Frequency Braking
New strategy for control of Harmony with Bypassed cells Zero hardware braking solution for VFDs Dynamic braking using high frequency ac injection instead of dc injection Dissipates kinetic energy in the motor instead of the drive Achieves 12% negative power (best case) without exceeding rated current Patent Application filed

48 Dual-Frequency Braking
Features: Dynamic Braking using high frequency AC Injection instead of DC Injection Zero Hardware Braking Solution: No Additional Circuits No Braking Resistors Dissipates kinetic energy in motor instead of in drive Typical available Braking Torque (Motor Dependant): 200% Speed 100% Speed 20% Speed Patent: Pending Typically 4X DC Injection At same Amperage

49 Dual-Frequency Braking
Unlike DC injection, this approach provides much higher torque per ampere, and permits continuous estimation of motor speed. The new method causes extra losses to be induced in the motor by applying a second set of three- phase voltage vectors to the motor in addition to the normal set of voltage vectors used for speed control. The energy returned to the DC link by the normal vector set is used to create the second set of loss-inducing vectors, which dissipate that energy in the motor.

50 Equivalent Circuit of Perfect Harmony Drive
during Dual-Frequency Braking

51 V w I Typical Examples of Voltage Reference, Speed Estimate,
a,ref (50%/div.) w Braking begins here (50%/div.) s I (150%/div.) a Typical Examples of Voltage Reference, Speed Estimate, and Motor Current during Dual-Frequency Braking

52 Comparison of Dual-Frequency to DC Injection Braking, for Imax = 100%
Percent of Rated Torque 1 Dual-Frequency 1 DC Injection 1 1 2 3 4 5 6 7 8 9 1 Percent of Rated Speed

53 Dual Frequency Braking
There are two side effects of Dual Frequency Braking: 1. Torque Pulsations: These are controlled by allowing the user to select the Pulsation Frequency 2. Motor Heating: This is controlled by a software motor thermal model and is designed to be no worse than a line start.

54 去变压器 二次侧 功率单元输出 光纤通信连接至主连接板 单元控制电路 Q1 Q3 Q2 Q4 COIL 旁路接触器 功率单元旁路电路

55 每相5个功率单元串联,正常运行 A VAC VBA N 100% 电压输出 C B VCB A5 A4 A3 A2 A1 120 TYP.
o C1 B1 N 480V 480V C2 B2 480V 480V C3 B3 480V 100% 电压输出 480V C4 B4 480V 480V C C5 B5 B 480V VCB 480V

56 仅A4,A5功率单元旁路 相位不变 A VAC VBA N A4, A5旁路后输出电压不对称 C B VCB A3 A2 A1 120
TYP. o VAC VBA C1 B1 N 480V 480V C2 B2 480V 480V C3 B3 480V 480V C4 B4 A4, A5旁路后输出电压不对称 480V 480V C C5 B5 B 480V VCB 480V

57 A4,A5, B4, B5, C4, C5同时旁路,输出电压对称,降为 60%
480V A2 480V VAC VBA A1 480V 120 TYP o C1 B1 N 480V 480V C2 B2 480V 480V C3 B3 C B 480V VCB 480V A4,A5, B4, B5, C4, C5同时旁路,输出电压对称,降为 60%

58 A4,A5旁路,调整相位角,输出电压对称,可达 80%
95 132.5 o A B C VAC VBA VCB A3 A2 A1 B1 B2 B3 B4 B5 C1 C2 C3 C4 C5 480V A4,A5旁路,调整相位角,输出电压对称,可达 80% 仅旁路A4,A5 新的旁路技术 (中心点偏移)

59 A B5,C4, C5旁路 新的旁路技术 (中心点偏移) VAC VBC 113.1 96.9 C B VCB 70%对称输出电压 C2

60 新的旁路技术 (中心点偏移) A VAC VBA VCB C B B4,B5, C3, C4, C5旁路 50% 对称输出电压 A5
61.6 A1 61.1 480V 480V 480V B2 C1 B1 480V 480V 480V

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62 完美无谐波变频器结构(输入变压器部分)

63 完美无谐波变频器结构(抽屉式功率单元)

64 Perfect Harmony Liquid Cooled VFD System 大功率水冷完美无谐波变频器

65 PERFECT HARMONY完美无谐波变频器 OPERATING AND MAINTENANCE FEATURES 操作和维修特点
MODULAR CELLS CAN BE EASILY WITHDRAWN FROM VFD 模块化的功率单元可以很容易地从变频器中取出 NO HIGH VOLTAGE COMPONENTS IN VFD CELLS 功率单元没有高电压成分 480/630 VOLT DEVICES ARE CONFIGURED TO PRODUCE HIGH VOLTAGE 480/630 伏特的装置组合产生高电压 FIBER OPTIC DIAGNOSTICS PINPOINT EXACT LOCATION OF FAULT 光纤通讯进行故障诊断

66 PERFECT HARMONY 完美无谐波变频器 OPERATING AND MAINTENANCE FEATURES 操作和维修特点
FAULTY CELLS CAN BE BY-PASSED ON THE RUN WITH OPTIONAL CELL BY-PASS FEATURE 功率单元旁路选件可以使故障单元在变频器运行的情况下被旁路 VECTOR CONTROL OPTION FOR PRECISE SPEED CONTROL 如需高性能控制, 可选矢量控制选件

67 PERFECT HARMONY 完美无谐波变频器 OPERATING AND MAINTENANCE FEATURES 操作和维修特点
FAULT, DIAGNOSTIC, AND HISTORIC LOGS 故障诊断,历史状态记录 FAULTY CELLS TO 400 AMPS SIZE CAN BE CHANGED OUT BY NON-SPECIALIZED ELECTRICIAN IN 10 MINUTES. WATER COOLED UNITS CAN BE CHANGED IN 45 MINUTES 大到400安培的故障功率单元可以在10分钟内由普通的电器技术员换调. 水冷的功率单元更换也不超过45分钟 OFFSITE REPAIRS OF CELLS WITHOUT ACCESS TO COMPLETE VFD 功率单元的修理可以不在现场进行, 不影响变频器系统运行

68 PERFECT HARMONY 完美无谐波变频器 SUMMARY OF FEATURES 特性总结
VERY LOW HARMONIC CURRENT AND VOLTAGE GENERATION 输入电流和电压谐波很低 NO SPECIAL MOTOR NEEDED 不需特殊的电机,使用国产电机和旧电机 NO EXTRA POWER FACTOR CORRECTION OR HARMONIC FILTERING EQUIPMENT NEEDED 不需功率因数纠补偿和谐波滤波器 NO EXTERNAL STEP- DOWN OR STEP -UP TRANSFORMERS 不需外加的降压/升压变压器 HIGH SYSTEM EFFICIENCY 系统效率很高 ABILITY TO KEEP RUNNING EVEN WITH A FAULT 在单元故障的情况下可继续运行

69 PERFECT HARMONY 完美无谐波变频器 SUMMARY OF FEATURES 特性总结
输出相电压至少7电平,线电压13电平,dV/Dt小,对电机影响小 STANDARD CLASS ELECTRICIANS CAN RE-INSTATE VFD WITHOUT HAVING TO WAIT FOR A SPECIALIST TECHNICIAN 普通的电器技术员可以重行起动变频器而不需等待技术专家来 SMALL PHYSICAL SIZE 体积小 RIDE THROUGH CAPABILITIES FOR POWER SYSTEM DISTURBANCES 承受电源的干扰能力强 Full digital control 全数字控制,功能强 诊断功能很强,可以很方便的定位故障


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