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DD IEC/TS 61800-8:2010 Adjustable speed electrical power drive systems - Specification of voltage on the power interface, 2010
- iec61800-8{ed1.0}en.pdf [Go to Page]
- CONTENTS
- FOREWORD
- 1 Scope
- 2 Normative references
- 3 Overview and terms and definitions [Go to Page]
- 3.1 Overview of the system
- 3.2 Terms and definitions
- 4 System approach [Go to Page]
- 4.1 General
- 4.2 High frequency grounding performance and topology
- 4.3 Two-port approach
- 4.4 Differential mode and common mode systems
- 5 Line section [Go to Page]
- 5.1 General
- 5.2 TN-Type of power supply system
- 5.3 IT-Type of power supply system
- 5.4 Resulting amplification factors in the differential mode model of the line section
- 5.5 Resulting contribution of the line section in the common mode model
- 6 Input converter section [Go to Page]
- 6.1 Analysis of voltages origins
- 6.2 Indirect converter of the voltage source type, with single phase diode rectifier as line side converter
- 6.3 Indirect converter of the voltage source type, with three phase diode rectifier as line side converter
- 6.4 Indirect converter of the voltage source type, with three phase active line side converter
- 6.5 Resulting input converter section voltage reference potential
- 6.6 Grounding
- 6.7 Multipulse application
- 6.8 Resulting amplification factors in the differential mode model of the rectifier section
- 6.9 Resulting amplification factors in the common mode model of the rectifier section
- 7 Output converter section (inverter section) [Go to Page]
- 7.1 General
- 7.2 Input value for the inverter section
- 7.3 Description of different inverter topologies
- 7.4 Output voltage waveform depending on the topology
- 7.5 Rise time of the output voltages
- 7.6 Compatibility values for the dv/dt
- 7.7 Repetition rate
- 7.8 Grounding
- 7.9 Resulting amplification effect in the differential mode model of the inverter section
- 7.10 Resulting additive effect in the common mode model of the inverter section
- 7.11 Resulting relevant dynamic parameters of pulsed common mode and differential mode voltages
- 8 Filter section [Go to Page]
- 8.1 General purpose of filtering
- 8.2 Differential mode and common mode voltage system
- 8.3 Filter topologies
- 8.4 Resulting amplification effect in the differential mode model after the filter section
- 8.5 Resulting additive effect in the common mode model after the filter section
- 9 Cabling section between converter output terminals and motor terminals [Go to Page]
- 9.1 General
- 9.2 Cabling
- 9.3 Resulting parameters after cabling section
- 10 Calculation guidelines for the voltages on the power interface according to the section models
- 11 Installation and example [Go to Page]
- 11.1 General
- 11.2 Example
- Annex A (informative) Different types of power supply systems
- Annex B (informative) Inverter voltages
- Annex C (informative) Output filter performance
- Bibliography
- Figures [Go to Page]
- Figure 1 – Definition of the installation and its content
- Figure 2 – Voltage impulse wave shape parameters in case of the two level inverter where rise time tri = t90 – t10
- Figure 3 – Example of typical voltage curves and parameters of a two level inverter versus time at the motor terminals (phase to phase voltage)
- Figure 4 – Example of typical voltage curves and parameters of a three level inverter versus time at the motor terminals (phase to phase voltage)
- Figure 5 – Voltage source inverter (VSI) drive system with motor
- Figure 6 – Amplifying two-port element
- Figure 7 – Adding two-port element
- Figure 8 – Differential mode and common mode voltage system
- Figure 9 – Voltages in the differential mode system
- Figure 10 – Block diagram of two-port elements to achieve the motor terminal voltage in the differential mode model
- Figure 11 – Equivalent circuit diagram for calculation of the differential mode voltage
- Figure 12 – Block diagram of two-port elements to achieve the motor terminal voltage in the common mode model
- Figure 13 – Equivalent circuit diagram for calculation of the common mode voltage
- Figure 14 – TN-S power supply system left: kC0 = 0, right: kC0 = 1/ SQR 3
- Figure 15 – Typical configuration of a voltage source inverter with single phase diode rectifier supplied by L and N from a TN or TT supply system
- Figure 16 – Typical configuration of a voltage source inverter with single phase diode rectifier supplied by L1 and L2 from an IT supply system
- Figure 17 – Typical configuration of a voltage source inverter with single phase diode rectifier supplied by L1 and L2 from a TN or TT supply system
- Figure 18 – Typical DC voltage Vd of single phase diode rectifier without breaking mode. BR is the bleeder resistor to discharge the capacitor
- Figure 19 – Typical configuration of a voltage source inverter with three phase diode rectifier
- Figure 20 – Voltage source with three phase diode rectifier supplied by a TN or TT supply system
- Figure 21 – Voltage source with three phase diode rectifier supplied by an IT supply system
- Figure 22 – Voltage source with three phase diode rectifier supplied from a delta grounded supply system
- Figure 23 – Typical relation of the DC link voltage versus load of the three phase diode rectifier without braking mode
- Figure 24 – Typical configuration of a VSI with three phase active infeed converter
- Figure 25 – Voltage source with three phase active infeed supplied by a TN or TT supply system
- Figure 26 – Voltage source with three phase active infeed supplied by a IT supply system
- Figure 27 – Topology of a N = 2 level voltage source inverter
- Figure 28 – Topology of a N=3 level voltage source inverter (neutral point clamped)
- Figure 29 – Topology of a N = 3 level voltage source inverter (floating symmetrical capacitor)
- Figure 30 – Topology of a three level voltage source inverter (multi DC link), ndcmult = 1. The voltages Vdx are of the same value
- Figure 31 – Topology of an N-level voltage source inverter (multi DC link), ndcmult = 2
- Figure 32 – Basic filter topology
- Figure 33 – Topology of a differential mode sine wave filter
- Figure 34 – Topology of a common mode sine wave filter
- Figure 35 – EMI filter topology
- Figure 36 – Topology of the output choke
- Figure 37 – Example of converter output voltage and motor terminal voltage with 200 m motor cable
- Figure 38 – Differential mode equivalent circuit
- Figure 39 – Common Mode Equivalent Circuit
- Figure 40 – Resulting phase to ground voltage at the motor terminals for the calculated example under worst case conditions
- Figure 41 – Resulting phase to phase voltage at the motor terminals for the calculated example under worst case conditions
- Figure 42 – Example of a simulated phase to ground and phase to phase voltages at the motor terminals (same topology as calculated example, TN- supply system, 50 Hz output frequency, no filters, 150 m of cabling distance, type NYCWY, grounding impedance about 1 mΩ)
- Figure A.1 – TN-S system
- Figure A.2 – TN-C-S power supply system – Neutral and protective functions combined in a single conductor as part of the system TN-C power supply system – Neutral and protective functions combined in a single conductor throughout the system
- Figure A.3 – TT power supply system
- Figure A.4 – IT power supply system
- Figure A.5 – Example of stray capacitors to ground potential in an installation
- Figure A.6 – Example of a parasitic circuit in a TN type of system earthing
- Figure A.7 – Example of a parasitic current flow in an IT type of system earthing
- Tables [Go to Page]
- Table 1 – Amplification factors in the differential mode model of the line section
- Table 2 – Factors in the common mode model of the line section
- Table 3 – Maximum values for the potentials of single phase supplied converters at no load conditions (without DC braking mode)
- Table 4 – Maximum values for the potentials of three phase supplied converters at no load conditions (without DC braking mode)
- Table 5 – Typical range of values for the reference potentials of the DC link voltage, the DC-link voltages themselves and the grounding potentials in relation to supply voltage as “per unit value” for different kinds of input converters sections
- Table 6 – Amplification factors in the differential mode model of the rectifier section
- Table 7 – Amplification factors in the common mode model of the rectifier section
- Table 8 – Number of levels in case of floating symmetrical capacitor multi level
- Table 9 – Number of levels in case of multi DC link inverter
- Table 10 – Peak values of the output voltage waveform
- Table 11 – Typical ranges of expected dv/dt at the semiconductor terminals
- Table 12 – Example for a single voltage step in a three level topology
- Table 13 – Expected voltage step heights for single switching steps of an n level inverter
- Table 14 – Example for multi steps in a three level topology
- Table 15 – Biggest possible voltage step size for multi steps
- Table 16 – Repetition rate of the different voltages depending on the pulse frequency
- Table 17 – Relation between fP and fSW
- Table 18 – Resulting amplification factors in the differential mode model
- Table 19 – Resulting additive effect (amplification factors) in the common mode model
- Table 20 – Resulting dynamic parameters of pulsed common mode and differential mode voltages
- Table 21 – Typical resulting differential mode filter section parameters for different kinds of differential mode filter topologies
- Table 22 – Typical resulting common mode filter section parameters for different kinds of common mode filter topologies
- Table 23 – Resulting reflection coefficients for different motor frame sizes
- Table 24 – Typical resulting cabling section parameters for different kinds of cabling topologies
- Table 25 – Result of amplification factors and additive effects according to the example configuration and using the models of chapters 5 to 9
- Table B.1 – Typical harmonic content of the inverter voltage waveform (Total distortion ratio – see IEC 61800-3 for definition)
- Table C.1 – Comparison of the performance of differential mode filters
- Table C.2 – Comparison of the performance of common mode filters [Go to Page]