( and hdo8000 series oscilloscopes )...motor drive input/output (ac line input, dc bus, drive...

MDA800 Motor Drive Analyzer MDA800 Motor Drive Analyzer ( and HDO8000 Series Oscilloscopes )( and HDO8000 Series Oscilloscopes )

MDA800 – Motor Drive Analyzer Complete Motor Drive System Debug and Validation Three-Phase Power Measurements ( Real , Apparent and Reactive)Efficiency Measurements Per-Cycle Time-Correlated Waveforms From Power ValuesDynamic Drive response Analysis, from Startup to Overload Complete Motor Integration ( Torque, Speed, Position )User-Configurable Power Table and Graphical User Interface Unique Zoom+Gate Mode

10/2/14Teledyne LeCroy Company Confidential 2

MDA support the complete design and debug challenge for the motor drive engineer


Power Section Measurements

Line inputPWM outputEfficiencies

Motor IntegrationTorqueSpeedPositionPower

Embedded Control Debug

AnalogDigitalSerial DataControl LoopPWM

Motor Drive Analyzers – Unique Positioning

General-purpose 8 ch, 12-bit scopes up to 1 GHz plus 32 Digital Channels Motor Drive Analyzers perform

Static (steady-state) “mean value”tables, like a power analyzerDynamic (transient) analysisComplete embedded control debug (i.e. it is a fully-functional oscilloscope)

High SR, BW, MemoryMixed Signal Serial Trigger & Decode

More complete motor integration

10/2/14Teledyne LeCroy Company Confidential

General-purpose Oscilloscope(BW, SR, Memory, MSO, Serial Trigger/Decode,

IGBT/MOSFET Device Test)

Mot

or In

tegr

atio

n

Torq

ue, S

peed

, Pow

er

3-phase Power

Analysis

(Channels, Resolution)

Teledyne LeCroyMotor Drive Analyzer8ch, 12-bit

It’s an Oscilloscope, and it’s also a Power Analyzer with Motor Integration

Introducing the Teledyne LeCroy HDO8000 Oscilloscope8 analog input channels , Mixed-signal (MSO) option 16 Ch

Ideal for high power and three-phase power electronics analysisVery useful for deeply embedded electronic/mechatronic systems

Highest Accuracy 12-bit HD4096 High Definition Technology

“16x closer to perfect”

Comprehensive availability of ProbingActive/passiveHigh voltage differential (1000Vrms)CurrentDifferential amplifiers

Connect up to 8 current probes at one time

Serial Trigger/Decode 19 different low-speed serial trigger/decode solutions available

Faster Up to 1 GHz

Bandwidth for today’s and tomorrow’s technologies

Support for WQXGA (3840x2160 pixels) Extended Desktop

Add a larger touch-screen display to the HDO8000

View a 3rd party program (e.g. MATLAB) on the oscilloscope displayLocate oscilloscope near DUT and the larger display farther away

HDO8000 Oscilloscope - Powerful AnalyticsMost powerful motherboard in its class

Intel® CoreTM i5-4670s Quad (core)2.9 GHz (per core)up to 32 GB of RAM

Long acquisition memory50 Mpts/ch standard, up to 250 Mpts/ch optionalIdeal for several seconds of data capture

More WaveformsUp to 40 total, displayable12 Math, 12 Zoom, 12 Memory waveforms

Modern, oscilloscope user-interfaceTeledyne LeCroy’s MAUI scope operating software running on Windows 7 OSSupports 3rd party software (e.g. MATLAB) running on scope

What is a Motor Drive Analyzer?


It is a new model series (MDA8xx)It is built on the HDO8000 platformAll MDA specifications are same as HDO8000 of equivalent bandwidthAll MDA800 available options, accessories, and probes are the same as HDO8000

It contains the “Motor Drive Power Analyzer” firmware capabilities

It contains advanced X-Y capabilityThis capability is not available on HDO8000

It has MDA-specific bezel buttons

Motor Drive Analyzer Graphical User Interface

Simple , Intuitive user interface


Numerics Table for short record

power analysis, like a Power Analyzer

Long Record Dynamic Analysis toolsets that Power

Analyzers don’t have

Most Complete Mechanical Motor

Integration

Intuitive Wiring Configuration Setup

Diagrams“This is much nicer

than a power analyzer”

Powerful Analysis : Brushless DC Power Tool


MDA800 Motor Drive Analyzer Value PropositionStatic

It can calculate three-phase power and motor mechanical torque/speed values for short record, static (steady-state) operating conditions.

DynamicIt can capture long record, dynamic operating events and contains advanced tools for per-cycle analysis and correlation to other events. Unique capabilities !

CompleteIt’s an 8-channel (+16 digital), high definition (12-bit) oscilloscope that can perform complex debug of the embedded control systemMDO800 can debug anything in the full drive system:

Motor (mechanical) measurementsMotor Drive input/output (AC Line Input, DC Bus, Drive Output) measurementsInverter subsection characterization and debug (e.g. power semiconductor device loss/operation, switching problems)Embedded control system debugAll of the above working together as a complete Drive System


MDA800 Motor Drive Analyzer Value Proposition - Summary


Capability Teledyne LeCroy MDA800 Motor Drive Analyzer

StaticPower Analysis

YesShort records.Constant load/speed.Numerics value table.

DynamicPower Analysis

YesLong time durationsVariable loads/speeds.Statistics Table.Per-cycle Waveforms.

Complete Test Capability

YesMixed Signal (MSO).Serial Trigger & Decode.Oscilloscope Tools.Probes & Accessories.

MDA - Overall Hardware Summary

13

Teledyne LeCroy MDA800 Motor Drive Analyzer

Inputs 8 analog, +16 digital (optional)

Resolution 12-bits

Bandwidth 350 MHz - 1 GHz

Sample Rate 2.5 GS/s

Memory 50 Mpts/Ch standard250 Mpts/Ch maximum

Specified Power Measurement Accuracy

~1% voltage/current~1% power

(typical expected, using probes)

Probe Integration Complete

HV Isolation Yes, 1000Vrms(using HVD Series voltage probes)

Filtering Yes (ERES)(software post-processing)


MDA : Overall CapabilityFor complete drive system debug and validation – power + control + motor

14

Teledyne LeCroy HDO8038 + Motor Drive Power Analyzer SW

Embedded Control Debug and Validation (Analog, Digital, Serial Data trigger and capture)

Yes

Power Semiconductor Device Analysis (Device Losses, RDS ON, etc.) Yes

(with PWR option, suitable probes, optional)

Power System (Inverter) Analysis Toolset3-phase power, voltage, current measurements and waveforms Yes

Motor IntegrationSpeed and Torque sensors Yes


MDA : 3-phase Power and Motor InterfaceFeature Set and Capability Comparison

Capability

“Static”Power Analysis (Numeric table)

Numeric Values + Table Yes

Each Phase and Σ3-ph values Yes

Line-Line to Line-Neutral Conversion

Yes (standard)

Efficiency Calculations Yes

Per-cycle Values Yes

“Dynamic”Power Analysis

Per Cycle V, I, PWR Waveforms Yes

Per-cycle Values and Statistics Yes

Harmonics Drive Input/Output Harmonics Planned

Motor IntegrationTorque Yes

Speed, Direction, Position Yes (standard, comprehensive)


MDA and HDO8000 oscilloscope : Capabilities Comparison


High Bandwidth and Long Acquisition Memory are High Bandwidth and Long Acquisition Memory are Important in the Motor Drive AnalyzerImportant in the Motor Drive Analyzer

for Device Characterization and Embedded Control System Test

Back to Beginning

High Bandwidth is Important in the Motor Drive Analyzerfor Device Characterization and Embedded Control System Test

IGBT/MOSFET CharacterizationCurrent silicon (Si) devices have rise times of ~30 ns

~100 MHz requiredNext-generation silicon-carbide (SiC) or gallium-nitride (GaN) deployed with faster rise times

~500 MHz to 1 GHz oscilloscope bandwidth desired

1ns device rise timePerhaps 5ns as designed into a drive

Control Microprocessor Speed Can Range up to 700 MHz

e.g. Vector FOC controlsUp to 1 GHz oscilloscope bandwidth required

MDA 350MHz, 500 MHz and 1 GHz


Long Acquisition Memory is Useful in the Motor Drive AnalyzerFor dynamic capture and analysis under changing loads, speeds, and control conditions

Dynamic Response DebugStart-up to Steady-State, or vice-a-versaRapidly changing load conditions

Debug of Control and/or Gate-drive Problems (high frequency) to Power Cycle (low frequency) behaviors

MDA long memory (100Mpt/Ch–L) and (250Mpt/Ch–XL) options

Std. 50 Mpt/Ch Very high value


Motor Drive Analizer Motor Drive Analizer -- MDAMDASoftware Capability OverviewSoftware Capability Overview

Motor Drive Analysis Setup Dialog OverviewPush “Drive Setup” button or Select “Motor Analysis” from Analysis pull-down


Multi-tab structure, like SDAIII

Wiring diagram and channel assignments –

1 for each power section

Mechanical (torque and speed) selections and channel assignments

3-phase Power and Motor Measurements numerics

table setupPer-cycle “synthesized”

Waveforms and Statistics

Combined iconic setup indication and shortcut button to dialog/tab Setup summary

Shortcut buttons to dialog/tab

AC Input Setup Dialog Overview

Wiring configuration

selection

AC Input Voltage and Current Assignments

Waveform period synchronization setup (for per-cycle measurement

analysis)

Enable Zoom+Gate –button and indicator (gray when “ON”)


Wiring setup image changes dynamically with selected wiring configuration

L-L to L-N voltage conversion (when applicable, selectable individually for each power

section tab)

DC Bus Setup Dialog Overview


selection

DC Bus Voltage and Current Assignments


analysis)




Drive Output Setup Dialog Overview


selection

Drive Output Voltage and Current Assignments

Harmonic Filter Setup


analysis)

L-L to L-N voltage conversion (when applicable, selectable individually for each power

section tab)




Wiring Configuration - SetupComplete wiring configuration selection, with L-L to L-N voltage conversion standard

Wiring configuration is user-selectable

We support the same 1-phase and 3-phase configurations

Line-Line (L-L) to Line-Neutral (L-N) conversion is a standard feature


Intuitive, graphical UI makes for better understanding of required three-phase connections

“That’s nice !

Corresponding graphical setup image appears

Intuitive 3-phase, 3-wire (3V3A) AssociationsVoltages and Currents Associate in an Intuitive Fashion

More intuitive line-line voltage and line current associationsVRS -› IRVST -› ISVTR -› IT

It’s easy to remember how to set up the wiring assignments

When acquired, L-L voltage and L-N currents “associate” in an expected way


“Per Cycle” Measurement Technique for Power AnalysisThe selected Sync signal determines the measurement period

Take a long acquisitionOnly two cycles are shown, to the right, as an example

Detect the cyclical period, and “slice” the waveforms into these periods

We know how to do this – this is what we in serial data jitter analysis

In each “sliced” periodCalculate Real Power (P) as instantaneously V * I sampled data Calculate Apparent Power (S) as Vrms * Irmsfor each cyclical period“N” measurement values for “N” cyclical periods in each acquisitionSolve for Q, as before.

Calculate VDC, IDC, Ipeak, Vpeak, etc. as well on a per-cycle basis

one period


Drive Output Harmonic FilterDrive PWM Output contains a lot of high frequency “harmonic” contentMotors are by nature LC filters – they filter this content outCapability to look at Numerics data with a filter applied at the outputThis is a line-line voltage probed example with a L-L to L-N conversion applied to the Numerics data

At fundamental only, Apparent Power and Reactive Power values are reduced, Power Factor goes up, and Phase Angle goes down (as expected)


Zoom+Gate OperationPush “Zoom+Gate” button to create Zooms and Gate the Numerics table to zoomed area


Original, Full Record Length

Acquisitions

Zooms

Displayed Sync

Signal is Zoomed

Per-cycle “synthesized”Waveforms are ZoomedAll table

data is calculated on zoomed area only

Zoomed Area in

Acquisition

Light Glows “ON” when in Zoom+Gate mode

Mechanical Setup Dialog Overview

Torque Sensing Method

Selection

Speed & Angle setup changes depending on

Method selected

Rotation direction is arbitrary –

select one of these to get

correct sign of rotation

parameter


analysis)

Select the analog channel to use for Torque sensing input



Select Units, Filter Cutoff, and Scaling

Speed, Angle,

Direction Method

Selection

“Angle” is the arbitrary shaft rotation angle. “Offset

Angle” allows correction to something not arbitrary (e.g.

rotor field)

Mechanical Setup – The Most Complete Motor Sensor IntegrationStandard with MDA – Teledyne LeCroy

Torque Load CellsAnalog and Digital Speed Sensors

Analog/Pulse Tachometer (speed)Hall Sensor (speed and direction)Resolver (speed and direction)Quadrature Encoder Interface (speed, direction, absolute position)


Mechanical Setup – The Most Complete Motor Sensor Integration Speed x Torque = Mechanical Power, so complete sensor support is criticalSensor Type Sensing Capability Teledyne

LeCroyStandardCapability

Analog TachometerSpeed

Fully-supported.

Digital (Pulse) Tachometer

Fully-supported.

Hall Effect Sensors

Speed + Direction

Fully-supported. Commonly used in BLDC applications. Signals are digital, so MSOinputs can be used for sensing, preserving analog channels for other needs.

Resolver Fully-supported. Commonly used in Vector FOC motor drives where high-precision and reliability is required (e.g. hybrid/EV vehicle propulsion)

Quadrature Encoder Interface (QEI)

Speed + Direction + Absolute Position

Fully-supported. Commonly used in Vector FOC motor drives as it provides absoluteposition of rotor field. Engineers may debug with QEI even whenproduction drives use Resolvers.

Analog Load Cell Torque Fully-supported.


Numeric Table Setup Dialog OverviewPush “Numerics” button to open setup dialog and/or display Numerics table

Check the box to display the

table

Table column (measurement) selections

are made hereMechanical Units Selection


Table row (source) selections dynamically

change based on wiring configuration


Numeric Voltage, Current and Power Results Table

User-Configurable “Power” Results Table (up to 10 rows and 12 columns)

Selection of Rows and Columns Populates the Results TableProbe Line-Line (L-L) and Display Results in Line-Neutral (L-N)

Using L-L to L-N conversion


Waveform (Voltage and Current) Acquisitionwith Numeric Voltage, Current and Power Results Table Shown


Completely New for LeCroy!Displays the mean value of parameter for the complete acquisitionSingle table, easy to configure

Up to 10 rows x 12 columns120 measurements in one table

Inherently customizablePopulates as selections made

Per-Cycle “Synthesized” Waveforms and StatisticsUnique Teledyne LeCroy features!

Time-correlated waveforms indicate drive system behavior over time Click on a Numeric table mean value

Get detailed statistics on all cycles in the Statistics table

Create a Waveform of the data over time

Mean valueMean valueStatistical Values


Mean value

Waveforms+Stats Setup Dialog OverviewPress Waveforms button to open setup dialog and/or display Waveforms + Statistics table

Check the box to display the

tableMeasurement

(Numerics table column)

Waveform Vertical Scale Settings – active

waveform can be adjusted


Motor Parameter (MP) On/Off button and

indicator (gray color = “on”)


Source (Numerics table row)

Waveform On/Off Checkbox

Application 2: Brushless DC Power Tool AnalysisApplication 2: Brushless DC Power Tool Analysis

Brushless DC Power Tool Analysis


Probing Requirements for Probing Requirements for Different Drive Voltage RatingsDifferent Drive Voltage Ratings

Specifying Probes for Motor Drive Power Section MeasurementsKnowing the drive input/output ratings will help you understand what to offer


“Floating”Ground-

Referenced

Drive “AC Line” Input Voltage Probing RequirementsAll Input VAC values in RMS

Input VAC/VRMS

# Phases

VPK-PK(line-line)

VPK(line-neutral)

Acceptable Probes (Quantity)

120 VAC 1 - 340 VPK PP018 (Qty. 1)†

HVP120 (Qty. 1) †

HVD3106 (Qty. 1)240 VAC 1 - 680 VPK

400 VAC 3 1131 VPK-PK 653 VPKHVD3106 (Qty. 3)

HVP120 probes could also be used but ONLY for line-neutral probing

480 VAC 3 1358 VPK-PK 784 VPK

600 VAC 3 1697 VPK-PK 979 VPK

690 VAC‡ 3 1952 VPK-PK 1127 VPK


† If using the PP018 or HVP120, the “neutral” must be at scope ground OR multiple probe grounds must be tied together and left to “float” (not the same as floating the scope)‡ Worst case input voltage for 600V class drive

The HVD3106 will provide the customer with the most probing flexibility AND provide fail-safe safety with signals that are not connected to ground

Drive “AC Line” Input Current Probing RequirementsAll Input AAC values in RMS

Input CurrentAAC/ARMS

# Input Phases Probe (Quantity)

Up to 30 AAC 1 CP030 (50 MHz) (Qty. 1)Up to 30 AAC 3 CP030 (50 MHz) (Qty. 3)Up to 150 AAC 3 CP150 (Qty. 3)Up to 500 AAC 3 CP500 (Qty. 3)>500 AAC* 3 Current Shunt

Pearson Current TransformersDanisense Current TransducersPEM-UK Rogowski Coils


* These devices may not be DC-coupled. Therefore, an absolute DC reference may not be maintained and this may compromise power measurement accuracy

CP Series current probes cost more, but they do provide the DC reference that many customers want

Drive DC Bus/Link Voltage Probing RequirementsAll Input VAC values in RMS

Input VAC/VRMS

# Phases DC Bus Voltage

Probe (Quantity)

Battery - ≤18 VDC HVD3106 (Qty. 1)PP018† or HVP120 could also be used in a battery-based system but only if the DC Bus on the DUT could be forced to earth (scope) ground. If you are not sure, use an HVD3106.

Battery - 36 VDC

Battery - 48 VDC

120 VAC 1 170 VDC

HVD3106 (Qty. 1)

240 VAC 1 340 VDC

400 VAC 3 566 VDC

480 VAC 3 679 VDC

600 VAC 3 849 VDC

690 VAC‡ 3 976 VDC


† PP018 is rated for 400VRMS‡ Worst case input voltage for 600V class drive

Included passive or optional HV passive probes are good values for DC bus probing in some cases, but HVD3106 can be used anywhere

Drive Gate Drive PWM Signal Probing RequirementsAssuming gate drive voltage of 3-24VDC


* Quantity depends on how many simultaneous gate drive signals need to be monitored† Limited to 20V gate drive voltage

DC Bus Voltage

Gate Drive Voltage

Probe (Quantity)*

18 VDC Up to 12 VDCZD200† (Qty. N)HVD3106 (Qty. N)36 VDC Up to 12 VDC

48 VDC Up to 24 VDC

170 VDC Up to 24 VDC

HVD3106 (Qty. N)






Due to floating voltages of gate drive, a differential probe with appropriate common-mode rating must be used

Drive DC Bus/Link Current Probing RequirementsAll Input AAC values in RMS

Input Current Probe (Quantity)

Up to 30 AAC CP030 (50 MHz) (Qty. 1)

Up to 150 AAC CP150 (Qty. 1)

Up to 500 AAC CP500 (Qty. 1)

>500 AAC* Current ShuntPearson Current TransformersDanisense Current TransducersPEM-UK Rogowski Coils




Drive 3-phase Output Voltage Probing RequirementsAll Input VAC values in RMS

DC Bus Voltage

VPK-PK(line-line)

VPK(line-neutral)

Probe (Quantity)

18 VDC 36 VPK-PK 21 VPK HVD3106 (Qty. 3)HVP120 or PP018† could also be used, but ONLY for line-neutral probing with the three ground leads tied to each other (not to scope ground) and therefore not connected to scope ground. PP018† passive probe (for <50V battery-supplied drives) are often grounded to a common “REF” board connection. The DUT will usually work fine in this situation.

36 VDC 72 VPK-PK 42 VPK




566 VDC 1132 VPK-PK 654 VPK HVD3106 (Qty. 3)HVP120 could also be used, but ONLY for line-neutral probing with the three ground leads tied to each other (not to scope ground) and therefore not connected to scope ground.



976 VDC 1952 VPK-PK 1127 VPK


† PP018 is rated for 400VRMS Line-Line probing is recommended – it is more intuitive to view the signal this way.

Drive 3-phase Output Current Probing RequirementsAll Input AAC values in RMS

Input Current # Input Phases Probe (Quantity)Up to 30 AAC 3 CP030 (50 MHz) (Qty. 3)Up to 150 AAC 3 CP150 (Qty. 3)Up to 500 AAC 3 CP500 (Qty. 3)>500 AAC* 3 Current Shunt

Pearson Current TransformersDanisense Current TransducersPEM-UK Rogowski Coils




HDOsHigh Definition Oscilloscopes

HDOsHDOsHigh Definition High Definition OscilloscopesOscilloscopes

High Definition Oscilloscopes (HDO)

12-bit HW ADC resolution,15 bit with ERES

Best Signal Fidelity

Highest Resolution

Lowest Electrical Noise

Maximum Accuracy

Teledyne LeCroy’s Innovation in the oscilloscope concept

HD4096 High Definition Technology

Combination ofHigh Sample Rate 12-bit ADCsHigh signal-to-noise input amplifiersLow noise system architecture

16 times more resolution than any other oscilloscope on the market

Capture high frequency signals with 1GHz bandwidth

BenefitsClean, Crisp WaveformsMore Signal DetailsPrecise Waveform Measurements

Waveform Signal Path

Analog Waveform

Amp

DigitizedWaveform

AD

C

Analog-to-Digital Converter Display

Processing

AcquisitionMemory

Trigger Circuit

SIMPLIFIED OSCILLOSCOPE BLOCK DIAGRAM

High Definition Oscilloscopes

LeCroy oscilloscopes with high resolution ADCs are the next generation of oscilloscopes providing 16 times more resolution than traditional 8 bit instruments

LeCroy HRO 6 ZiLeCroy HRO 6 Zi88--bit ADC becomes bit ADC becomes

1212--bit ADCbit ADC

HDO4000 & HDO4000 & HDO6000HDO6000

1212--bit ADCbit ADC

Available Quantization Levels in an ADC = 2 N bits of Resolution

Quantization levels – 16 times 16 times more for 12more for 12--bit scopesbit scopes

ADC Resolution Number of Steps Dynamic Range

8 256 ~48 dB

12 4096 ~72 dB

Highest Resolution12-bits provides 16 times resolution compared to 8-bits

Resolution = The number of available levels= 2 bits of Resolution

ADC Resolution

Number of Steps

Dynamic Range

8 256 48 dB12 4096 72 dB

Scope with low resolution Scope with high resolution

Quantization Error

712/27/2015

Highest Resolution12-bit allows detection of smaller signal variations

The higher number of bits means the lower measurable voltage

Full ScaleSmallest Voltage Step8 bits 12 bits

80 V 312.5 mV 19.5 mV40 V 156.2 mV 9.76 mV20 V 78.1 mV 4.88 mV8 V 31.3 mV 1.95 mV4 V 15.6 mV 976 µV

1.6 V 6.3 mV 390 µV800 mV 3.1 mV 195 µV400 mV 1.56 mV 97.6 µV160 mV 625 µV 39 µV80 mV 313 µV 19.5 µV40 mV 156 µV 9.76 µV16 mV 62.5 µV 3.9 µV8 mV 31.2 µV 1.95 µV

When measuring an 8 V signal, the smallest detectable voltage variation is 1.95 mV, compared to 31.3 mV on an 8-bit ADC.

Company confidential 722/27/2015

8-Bit Scope Baseline Noise

12-Bit Scope Baseline Noise

Comparison of 8-Bit and 12-Bit Acquisitions of ripple waveform

Multi-tone waveform acquired with 8-bit ADC

Multi-tone waveform acquired with 12-bit ADC

Comparison of noise floor and detected peaks of multi-tone waveform using 8-Bit and 12-Bit acquisitions

( and hdo8000 series oscilloscopes )...motor drive input/output (ac line input, dc bus, drive...

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