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INTEGRATED Engineering Newsflash

Posted on February 28, 2019

Research And Development (Dr. Enqiu Hu – R&D Engineer)

LORENTZ* 10.1 overview

We have significantly improved techniques for trajectory calculations in LORENTZ* version 10.1.The new release of LORENTZ* comes with improved Histogram feature. There are more functions to plot the density of beam along a sampling segment.

You will experience new improvements in Launch Distribution Settings in the emitter Physics section. You will find improved fitting results in the “Multiple Launch Settings” dialog box that opens up from “Settings” dialogue box. Also, LORENTZ* 10.1 comes up with more user inputs to control the smoothness and convergence speed for the space charge iteration.

Parametric optimization feature in version 10.1 will help to efficiently explore, understand and optimize your design with very little additional effort. You can find the optimal design seamlessly within LORENTZ* without writing your own optimization procedure or going to a third party optimization program. You only have to decide what parameters to change for the design, choose the result to maximize, set up a parametric analysis, and LORENTZ* 10.1 will find the best design parameter values.

Testing And Benchmarking (Dr. Amandeep Bal - Testing Engineer)

Specialized Mode in ELECTRO* for HVDC studies

Polarity Reversal (PR) mode in ELECTRO* is used in HVDC studies to approximate conditions when power flow direction is reversed. In dielectrics with linear parameters, polarity reversal can be regarded as superimposing a step voltage on a DC voltage. The PR solution can be obtained as a linear combination of two separate field solutions where

VPR = 2VAC - VDC or EPR = 2EAC - EDC

It should be noted here that AC refers to the "Permittivity" analysis and DC refers to the "Conductivity" analysis. Both analyses are, in fact, performed as "Static" (frequency = 0).

To set this switch, select the menu Utilities>Electro Mode>PR Mode. It is best to set this switch before opening a saved model or generating a new model.

Once this mode is activated, you simply assign the normal DC operating voltages to the appropriate geometry. The program will then perform a static permittivity analysis using twice the voltage you assigned, followed by a static conductivity analysis using the negative of the voltage you assigned. When you analyze the field results the program will automatically combine the results of both solutions.

Below model shows inner and outer circles with assigned voltage boundary conditions. A crescent shaped region is contained in the coaxial region. The material properties of the two regions are such that the field solutions will be very different depending on whether permittivity or conductivity dominates the solution. In the last picture, a Polarity Reversal analysis is performed with the inner circle at + 1 V. You can see that PR result is a superposition of the previously shown results in Permittivity and Conductivity modes.

Permittivity Mode Conductivity Mode Polarity Reversal Mode


Coming with version 10.1 is our newest program dedicated to solving the electrical parameters of complex or irregular cable structures, CABLES*.


In this parameter analysis program, the physics, solution and analysis menus have been constructed for the purpose of setting up and solving models consisting of long parallel wires, sheaths and insulation. This analysis provides the frequency dependence of the impedance matrices (capacitance, inductance, etc.), and will save the user vast amounts of time compared to manually setting up each individual parametric in ELECTRO* and/ or OERSTED*. The results can be output to a file format for importing cable properties, or exported to a generic text data file for other analyses.

* Copyright Enginia Research Inc.

Behind the Scenes

This February as we begin to climb out of our Canadian deep freeze, please enjoy some unique Manitoban aurora from the winter of 2018-2019 , taken by members of a local Winnipeg Aurora Watchers group! Just beautiful!

Light pillars
“Light pillars” taken by Ziv Shpilsky
Array of aurora Colours
An array of aurora colors, taken by Cary Bilcowski
Green aurora on the horizon
Green aurora on the horizon by Thamyris Selgueiro