JMAG & PSIM Users Conference 2021

This is to announce that the European JMAG distributor POWERSYS will be holding the JMAG & PSIM Users Conference 2021.
This conference will center around case studies using JMAG and PSIM, and will be held online from September 27th to October 1st, 2021.

Experts and developers in the field of electricity and power electronics will be in assembly at the conference, with those from countries outside of Europe also more than welcome to take part.
We look forward to your participation.

Overview

Organizer POWERSYS
Dates September 27th to October 1st 2021
Location Online
URL https://events.powersys-solutions.com/2021-powersys-conference-simulation-solutions-for-electrification/   

Program

Day 1: Sep. 27, 2021

New York (EST) Paris (CEST) Chennai (IST) Japan (JST)

General track

Keynote

3:30 am 9:30 am 1:00 pm 4:30 pm

Welcome Note / User Conference Introduction

Dr Takashi Yamada, JSOL Corporation & Vincent Capron, Powersys

Opening Remarks | Introduction to Powersys | Conference Outline

4:00 am 10:00 am 1:30 pm 5:00 pm

Keynote: Traction Motor Design and Optimization for E-mobility Applications

Shafigh Nategh and Bharadwaj Raghuraman, Volvo Cars

This presentation demonstrates the study carried out on different permanent magnet motor topologies that can be used in e-mobility applications. Considering the environmental effects of rare earth elements used in permanent magnet materials, focus in this presentation is placed on the solutions with less rare earth element magnets. Additionally, challenges in using non rare earth magnets in the rotor structure of permanent magnet motors are reviewed and discussed. The risk of demagnetization under short-circuit condition is considered as one of the main challenges in using non rare earth magnets that needs attention when designing the electric propulsion system. As shown in presentation, proper rotor design can significantly improve the risk of demagnetization allowing short-circuit in larger operation range. In addition, obtaining an acceptable level of performance and efficiency as using rare earth elements is possible to achieve. This has been enabled using advanced JMAG Optimization functions incorporating different design aspects into the optimization process.

5:00 am 11:00 pm 2:30 pm 6:00 pm

Development planning of JMAG

Dr Takashi Yamada, JSOL Corporation

JMAG is constantly being worked on to achieve highly accurate and high-speed simulation. JSOL would like to share our progress from the past year including parallel solvers to accelerate speed as well as GUI improvements aiming for increased productivity of analysis workflow. Analysis technologies we are currently focusing on and our plans for incorporation will also be covered in this presentation. Design exploration is an important topic this year. This presentation will detail the present and future of JMAG.

6:00 am 12:00 pm 3:30 pm 7:00 pm

Coming soon

Pascal Bayrasy, Fraunhofer

Coming soon

8:30 am 2:30 pm 6:00 pm 9:30 pm

Keynote: Advanced Electric Drive Modelling with Temperature and NVH Adaptive Control

Mohammed Essam Ahmed, AVL

The rate of vehicle electrification has risen recently, which leads to the realization that the development of each component separately is not sufficient. The reason for this is that each component (electric machine, inverter, even cables and busbars) has a significant impact on the performance of each other, as well as on the whole system level.
The current state of art in permanent magnet drives mostly adopts a motor control where the calibration is either independent of e-machine operation temperature or dependent only on the e-machine winding temperature, which can lead to the loss of optimal control and performance due to magnet temperatures away from the nominal one. In addition, NVH aspects such as torque ripple or stator forces are commonly addressed at the e-machine layout design stage only.
In this contribution, an advanced modelling of a full electric drive system is presented. Finite Element Analysis (JMAG) is jointly used with model-based and system analysis (PSIM) to develop temperature- and NVH-dependent dynamic control, where the electric machine can be quantitively characterized in detail, and, therefore, the control ensures optimal performance.
• Benefits of such analysis:
• Optimization and improvement of an existing electric drive (potentially via the over-the-air updates)
• Early-stage multi-objective and multi-domain electric drive optimization
• Faster front-loading and better calibration for testing
• Magnets (e-machine) health monitoring
• Optimal electric drive performance even in temperature ranges away from the nominal

9:30 am 3:30 pm 7:00 pm 10:30 pm

Development planning of PSIM

Hua Jin, Powersim

Coming soon

10:15 am 4:15 pm 7:45 pm 11:15 pm

Partial Power Converter (PPC) as an interface between DC microgrid and battery energy storage system

Naser Hassan, Tallinn University of Technology

Conventional full power converters process all the power transferred between input and output. Therefore, they have higher power loss and lower efficiency. One of the most promising solutions to boost the converter efficiency is to create a direct path between input/output to deliver a higher percentage of power without being processed by the DC-DC converter. These types of DC-DC converters are called Partial Power Converters(PPC). In these converters, only a small share of power is being processed, which in our case is 27%. The result is having low power elements, a high power density converter, and reaching higher efficiencies. A PPC-type DC-DC converter is simulated in PSIM to validate the theoretical analysis

Day 2: Sep. 28, 2021

New York (EST) Paris (CEST) Chennai (IST) Japan (JST)

General track

Keynote

3:50 am 9:50 am 1:20 pm 4:50 pm

Introduction

Powersys

Presentations of the day

4:00 am 10:00 am 1:30 pm 5:00 pm

JMAG presentation

Powersys

Coming soon

4:20 am 10:20 am 1:50 pm 5:20 pm

Suppression of Torque Ripple for Consequent Pole PM Machine by Pole Shaping Method

Ji Qi, Sheffield University

Consequent pole (CP) permanent magnet (PM) machines have attracted considerable interest as a means of reducing machine cost through a marked reduction in the volume of permanent magnet required to meet a particular torque specification. However, the presence of a large torque ripple that can result from the CPPM structure can hinder their adoption in some applications, especially for the dominant third order torque ripple. Several design-specific modifications have been proposed to ameliorate torque ripple, but it is common practice to adopt similar PM and iron pole shapes, an approach which does not fully account for the different features between PM and iron poles in CPPM machines. Additionally, the generalized principles underpinning this behavior have not been fully established. Consequently, the effect of the different pole shapes on torque ripple will be analyzed and an asymmetric pole shaping method will be proposed to reduce the torque ripple.

5:05 am 11:05 pm 2:35 pm 6:05 pm

Calculation of Electromagnetic Forces in Centric And Eccentric Permanent Magnet Synchronous Reluctance Machines

Tahar Hamiti, Nidec PSA eMotors

For rotor dynamics analysis the knowledge of average value and harmonic content of the unbalanced magnetic pull (UMP), caused by rotor eccentricity, are required to be calculated with high accuracy. In so doing, the machine is simulated without any symmetry. The mesh accuracy and regularity is of prime importance to ensure the result is exempt of numerical errors first on a model without eccentricity before tackling the eccentric case. This work presents a case study of force calculation considering three methods: 1- integration of Maxwell stress tensor using airgap flux density components; 2-summation of teeth forces calculated directly from the post-processing module and; 3-the lumped force on the rotor, also extracted directly from the post-processing module. Sensitivity study to the airgap mesh number of layers and circumferential divisions is performed and some comparative results will be shown.

7:40 am 1:40 pm 5:10 pm 8:40 pm

EMI Analysis and Filter Design Using EMI Design Suite

Amit Kumar, Powersim

Coming soon

8:00 am 2:00 pm 5:30 pm 9:00 pm

The Future of Power Electronics Control

Dr. Antonio Lázaro, Carlos III University of Madrid

Power electronics is a key enabling technology in the process of electrification of means of transport and energy production systems.
Digital control platforms will play a key role in this process. At present, converter control enables functionality and communications to be fulfilled. In the near future, these capabilities should grow exponentially, endowing the converter with remarkable intelligence and adaptability to operating conditions.
Some of the advanced functions that will be available in the future are as follows:
• Multi-converter control
• Real-time optimization of inverter and DC-DC modulators
• Compensator Auto-tuning
• Real-time estimation of grid and generator parameters
• Cloud-computing
• Machine learning of energy-storage filters
• For high-availability safe systems
• Parallel processing
• HIL systems and State-estimators
This presentation will give examples of these advanced functions and show some of the future digital platforms. Finally, for the case of control algorithms, a methodology will be shown, based on the use of SmartCtrl, PSIM and Vivado HLS to very quickly develop and implement control functions.

8:45 am 2:45 pm 6:15 pm 9:45 pm

Coming soon

Siavash-Heydarzadeh, V-Research

Coming soon

9:30 am 3:30 pm 7:00 pm 10:30 pm

AFE with a three-level inverter, how to control it and its model.

Egor Kulik, LLC SMC Vector

Coming soon

Day 3: Sep. 29, 2021

New York (EST) Paris (CEST) Chennai (IST) Japan (JST)

General track

Keynote

3:50 am 9:50 am 1:20 pm 4:50 pm

Introduction

Powersys

Presentations of the day

4:00 am 10:00 am 1:30 pm 5:00 pm

JMAG presentation

Powersys

Coming soon

4:20 am 10:20 am 1:50 pm 5:20 pm

Coming soon

Vladimir Semin, Institut für Digitalisierung und elektrische Antriebe (IDA) – Heilbronn University

Coming soon

5:05 am 11:05 pm 2:35 pm 6:05 pm

Coming soon

Paolo Bolognesi, University of Pisa

Coming soon

7:40 am 1:40 pm 5:10 pm 8:40 pm

EControl of a 100KW PMSM by using Motor Control Design Suites into PSIM

Amit Kumar, Powersim

Coming soon

8:00 am 2:00 pm 5:30 pm 9:00 pm

Investigation of inverter switching frequency impact in a drone propulsion system with high performance slotless PM motors

Zhaoqiang Zhang, Alva Industries AS

Inverter switching frequency has a dramatic impact on the performance of drone propulsion system, especially when slotless Pm motors are used. Specifically, the switching frequency affects the inverter type, inverter weight, magnet loss, stator core loss, choose of wire types, etc. This talk will present how PSIM has been employed to address these issues in our product development

8:45 am 2:45 pm 6:15 pm 9:45 pm

Power Converters for EV Battery Charging Systems

Vitor Monteiro, Universidade do Minho

Coming soon

9:30 am 7:00 pm 4:15 pm 10:30 pm

Coming soon

Zariff Gomes, Vedecom

Coming soon

Day 4: Sep. 30, 2021

New York (EST) Paris (CEST) Chennai (IST) Japan (JST)

General track

Keynote

3:50 am 9:50 am 1:20 pm 4:50 pm

Introduction

Powersys

Presentations of the day

4:00 am 10:00 am 1:30 pm 5:00 pm

JMAG presentation

Powersys

Coming soon

4:20 am 10:20 am 1:50 pm 5:20 pm

Coming soon

Robin Köster, Technical University of Darmstadt

Coming soon

5:05 am 11:05 am 2:35 pm 6:05 pm

FEA Modelling of Eddy Current Losses on Permanent Magnets of PMSM motor for EV traction application

Nirmalya Panigrahi & Vinayak Gupta, Jaguar Land Rover

The losses due to eddy currents in permanent magnets of a motor, have significant impact on the magnet temperature and its performance. While designing Battery electric vehicles (BEVs) this can influence the range and the cooling system for the motor assembly. The rare-earth magnets have higher conductivities which leads to significant magnet losses at maximum speed operations. In case of pulse width modulated current input to the 3-phase motor, the high-frequency harmonics can cause considerable rise in the magnet losses. This paper presents a detailed finite element analysis (FEA) modelling which takes into account the 3-D eddy current flow with a magnet to analyze and predict losses in a magnet with higher accuracy.

7:40 am 1:40 pm 5:10 pm 8:40 pm

« Optimization » capability for a 3-Phase PWM Rectifier

Adrien Michel, Powersys

Coming soon

8:00 am 2:00 pm 5:30 pm 9:00 pm

Behavioural modalization of a residential microgrid using PSIM look-up tables

Jordi Clos Garrido, UPC

The aim of this technical presentation is to explain the application of PSIM look-up tables (among other PSIM blocks to implement energy flow criteria) to simulate a microgrid behaviour. Within the explanation, data sources to fill up look-up tables and each model of each microgrid component will be described, from photovoltaic field passing through batteries and reaching power grid and domestic loads.
This model is used to determine the viability of implementing a microgrid, so incomes and expected energy bill are also simulated using PSIM assuming Spain surplus energy policies.

8:00 am 2:00 pm 5:30 pm 9:00 pm

Coming soon

Fabio Brucchi, Semikron

Coming soon

Day 5: Oct. 1, 2021

New York (EST) Paris (CEST) Chennai (IST) Japan (JST)

General track

Keynote

3:50 am 9:50 am 1:20 pm 4:50 pm

Introduction

Powersys

Presentations of the day

4:00 am 10:00 am 1:30 pm 5:00 pm

JMAG presentation

Powersys

Coming soon

4:20 am 10:30 am 1:50 pm 5:20 pm

Using JMAG in a multidisciplinary/multi-platform development environment

Zoltan Nadudvari, Rolls Royce

The electrification of aircraft is playing a significant role on the path to reduce the aviation industry’s environmental footprint. The industry poses specific challenges for the development engineers due to the strict requirements and design boundary conditions. Developing an electrical drive train which meets the high safety standards, the desired efficiency and power to weight ratio requires a multidisciplinary design approach to cover all of the requirements and design aspects. In an agile environment different engineering teams often use different platforms / ecosystems (e.g. Matlab, Simcenter, Ansys) to deliver the results in time and face the challenge of real-time data exchange between the disciplines. JMAG offers a wide range of flexibility to share simulation results with 3rd party ecosystems. In this presentation a workflow will be presented where the effect of mechanical stress due to thermal expansion on the iron core of an electric machine can be taken into account to get a more precise loss and performance result.

5:05 am 11:05 am 2:35 pm 6:05 pm

Effect of the Interaction of Different Manufacturing Imperfections on the Unbalanced Radial Forces in a Sub-Fractional HP Single-Phase BLDC Motor

Nejat Saed, Technical University of Graz

The increasing electrification of vehicles not only applies to the main drive systems, i.e., either replacing the combustion engine with electric machines or the parallel operation of both, but also to the less visible auxiliary drives, e.g., water pumps or LED-headlight fans. Remarkable
advantages of single-phase BLDC motors over their brushed counterparts, such as higher power density and low cost, make them a suitable choice for such auxiliary drive applications. The overall noise reduction of auxiliary drives has also attracted increased attention recently, since the noise of auxiliary systems is no longer masked by the main drive systems, as in the case of conventional, combustion engine driven, cars.
Manufacturing imperfections, inevitable in mass-produced sub-fractional HP motors, generate a distorted magnetic flux density waveform and additional magnetic forces, known as unbalanced magnetic forces (UMFs), and may eventually cause noise and vibration. Dynamic and static eccentricity as well as non-uniform magnetization are known as the dominant sources of the UMFs. This study analyzes the effect of the interaction of these different types of manufacturing imperfections on the unbalanced radial forces, focusing particularly on their phase difference. It shows the wide range of resulting distributions of the magnetic force that significantly exceeds those of the single-effect analyses. This explains the widespread structure-borne noise observed with sub-fractional HP machines, also reflected in extensive experimental investigations. The analyses also explore how dynamic eccentricity can counteract non-uniform magnetization and vice versa.

7:40 am 1:40 pm 5:10 pm 8:40 pm

How to use the Power supply design suite into PSIM?

Amit Kumar, Powersim

Coming soon

8:00 am 2:00 pm 5:30 pm 9:00 pm

Regenerative Breaking Basis using PSIM & SmartCtrl

Dr. Antonio Lázaro, Carlos III University of Madrid

Regenerative braking considered as a general concept, in which the load is eventually able to return energy to the generator or a storage system, is one of the bases for increasing the energy efficiency of an electric vehicle or a broader electrical system.
In this paper are presented the basics of how to handle the energy returned by a motor drive to be stored in a supercapacitor battery, through a bidirectional DC-DC converter, keeping the voltage of the intermediate DC BUS and the supercapacitors stable.
Since the simulations focus on power transfer, averaged models in PSIM are proposed to reduce simulation time and it will be shown how to use SmartCtrl to design the control loops of the bidirectional converter: current control, voltage control on the DC BUS and voltage control on the supercapacitors.
Finally, a simulation of the complete system will be shown: motor drive, bidirectional DC-DC converter, super capacitors and source converter.

8:45 am 2:45 pm 6:15 pm 9:45 pm

Performance evaluation of the new three-phase Current Synthesizing Power Factor Corrector (CSPFC) topology for EV charger, solar and motor drive applications using PSIM tools

Zoltán Képíró, Vincotech

High-efficiency power conversion and maximum power density are the main driving forces in power electronics development. Achieving low losses is a key requirement in a wide field of applications such as EV chargers, solar inverters and industrial drives with Power Factor Correction (PFC). The new Current Synthesizing Power Factor Corrector (CSPFC) presented here provides a high-efficient, compact solution for these three-phase systems and shows many additional improvements compared to the traditional Voltage Source Converter (VSC). PSIM tools make it possible to verify the theory of the CSPFC topology without building the physical application. Using this software is a fast and easy way to develop control logic and to predict key design metrics such as power factor, THD and EMC performance. Furthermore PSIM is capable to verify losses with thermal models of real components and to make comparison with existing solutions.

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