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Welcome to the latest eNewsletter from Siemens PTI
US
In May, Siemens PTI held its annual US Software Technology
Users Group Meeting in Orlando, Florida. This three-day meeting included
sessions for PSS®E, PSS®MUST and MOD®, as well as three Power System
courses. The event was well attended by users, with 41 attendees for the
PSS®MUST session, 82 attendees for the PSS®E session, and 30 attendees for
the MOD® session. The welcome reception and PSS® Suite product
demonstrations on the first evening included an anniversary cake cutting
ceremony to celebrate Siemens PTI’s 40th anniversary. 
I am pleased to announce that Version 32 of PSS®E was released
in June, representing a very feature-rich set of advances for our PSS®
Suite. Version 32 continues PSS®E’s leadership in power system planning
with many additions and improvements in system modeling and analysis.
Release 32.1, planned for fall of 2009, will introduce PSS®DB, a database
for planning data, and will also incorporate the winding connection angle
in the adjustment of phase-shifting transformers.
I hope you find this edition of our eNewsletter informative -
demonstrating our commitment to network consulting, software technology
and T&D training.
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Siemens
PTI, founded August 4th, 1969 is celebrating 40 years as a
provider of network consulting, software solutions and T&D
training worldwide. As a loyal customer, we would like
you to share in the celebration. Thank you, your business
and suppor t has made the first 40 years possible. We look
forward to continuing our business relationship. |
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Software Solutions |
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PSS®E Test System for Voltage Collapse
AnalysisVoltage collapse is one of the major limitations
in modern transmission systems. Quite often it is the most
limiting factor preventing further increases in power
transfers over existing transmission lines and
interfaces.
PSS®E contains several activities that help the
analysis of voltage collapse issues and the investigation of
potential mitigation solutions after a voltage collapse
condition is identified. |
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Training |
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New Course! Power System Studies for Wind
Integration (PSEC 535)Wind generation is an
ever-increasing component of the bulk power system. Unlike
traditional resources, however, wind generation output varies
according to the availability of the wind. Power System
Studies for Wind Integration addresses the reliability
impacts associated with the large-scale integration of
variable generation as well as the corresponding changes in
traditional methods used for bulk power system planning and
operations. |
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Siemens Power Academy TD US July 2009 -
December 2009 ScheduleSiemens PTI offers training
programs addressing all aspects of power system engineering,
including: generation, transmission, distribution and
industrial/commercial utilization. Our programs are developed
and taught by real- world experienced staff engineers with
advanced engineering degrees complemented by first-hand
experience solving power systems problems throughout the
world. We are also uniquely able to provide insight into
future software product developments, opportunities to meet
the developers and provide them with direct feedback from the
course. No other education provider can offer this! To view
upcoming courses, click the link below. |
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Special Offer!
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Network Consulting |
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North East Power System (NEPS) Energization
StudyThe main objective of switching studies is to make
sure that the transmission system can be energized in a secure
manner that guarantees that the system equipment can
withstand the overvoltages due to the corresponding maneuvers.
These studies generally include steady-state evaluation of
every energization step, electromagnetic transient studies of
switching of selected topologies (most critical cases) and
verification of the absence of sustained overvoltages due, for
example, to self-excitation of generators during load
rejection events. Siemens PTI has recently conducted such
studies on the Uzbekistan-Afghanistan 220 kV interconnection
for Advanced Engineering Associates International (AEAI). This
interconnection was energized weeks later and is now supplying
power to several communities in northern Afghanistan. This
article summarizes the results of the study completed to
verify the proposed energization procedure. |
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New Applications of HVDC Plus
TechnologyDr. Aty Edris recently led a study
investigating integration of novel Permanent Magnet Hydro
Synchronous Generators (PMSGs) to the Alberta Interconnected
System in Canada.
The study has concluded with an innovative concept
providing an unprecedented and robust connection solution,
thus enabling the PMSG to fulfill all regulation criteria with
no exception for generator connections to utility grids.
The work was initiated by Canadian Hydro Developer
and was a collaboration among Siemens PTI in the US, Andritz
Hydro in Austria and the Alberta Electric System Operator in
Canada. |
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Modeling of Two-Winding Voltage Regulating
Transformers for Positive Sequence Load Flow Analysis in
PSS®EElectrical transformers are important components in
transmission and distribution power systems. They make
possible the transfer of MWs and Mvars between networks
operating at various voltage levels. The modeling of these
power system components in the steady-state analysis of
electrical networks is critical since incorrect data for their
positive sequence winding leakage impedance, magnetizing
branch admittance, off-nominal turn ratio, number of tap
positions, tap range or voltage control band may lead to
erroneous results in the verification of voltage control
schemes, assessment of transmission losses and computation of
system var flows.
The main objective of this article is to assist
PSS®E users with a guide for entering electrical transformer
data for the positive sequence model of the electrical network
with a minimum of effort and minimal causes for errors. |
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Further Information |
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Recent PublicationsFor a complete
listing of Siemens PTI’s recent publications, including
authors, dates and occasions, follow the link below. |
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Want More News from Siemens Power
Transmission & Distribution?Subscribe to our other
SPT&D Newsletters:
EMA Customer Care Update
The Customer Care Update will provide organizational and
product news on our Spectrum Power™ line of energy management
systems including Spectrum Power TG, Spectrum Power 3 and
Spectrum Power CC. We will cover the following topics and
appreciate any feedback to improve our update: New EMA
Business, Customer Updates, Products and Solutions, Services,
SECA Update, Training, and EMA Organizational News.
HVDC / FACTS Highlights
HVDC / FACTS brings you timely and important information
about our project highlights, new advances and innovative
solutions for the power industry.
Surge Arresters Newsletter
This newsletter gives you information about our products
and keeps you informed about all news regarding Siemens Surge
Arresters.
T&D Guardian
An
industry newsletter from Siemens dedicated to enhancing
knowledge transfer for engineers responsible for maintaining
electrical transmission and distribution equipment.
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This
information is provided freely as a courtesy to our customer base to
make them aware of industry trends and issues associated with power
systems analysis. There is no warranty, suitability of purpose,
implied or expressed in the content of this news letter. Neither
Siemens AG, Siemens Energy, Inc. nor Siemens PTI assumes liability
of any kind associated with the above content.
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Siemens
Energy, Inc., Power Distribution
T&D Service Solutions
Siemens Power Technologies International
400 State Street
PO Box 1058
Schenectady , NY 12301-1058 | |
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