International Trends in Managing Power Quality and Voltage Dips – Master Class

When

Sydney, 24 & 25 September 2008

Where

Venue: Cliftons, 190 - 200 George Street,

Cost

$1,100 (incl. GST) API Members
$1,650 (incl. GST) Non-Member

Includes international expert presenter, comprehensive reference notes, lunches and refreshments and attendance certificate.

Description

Voltage dips are a serious concern to many industrial and other customers. A voltage dip with duration of 100 ms may result in production losses of $1 million dollar or more. For industrial customers, voltage dips are the main power quality concern and have received a lot of attention during the last 10 years.

This course will cover the different aspects of voltage dips, with the aim of understanding their origin and how they result in severe economic damages. This knowledge will be applied to local and global methods for reducing their economic impact.

During the first day of the course, the whole chain from voltage dip origin to production stoppage will be discussed. Emphasis will be on dips due to symmetrical and non-symmetrical faults. The course attendees will learn how dips originate, how they propagate through the system and how they result in equipment tripping and production stoppages.

The second day of the course will see the application of this to mitigation of voltage dips and voltage-dip system studies. The course attendees will learn how the voltage dip problem can be mitigated by different stakeholders. Both the customer viewpoint and the viewpoint of the network operator will be addressed.

Two important recent issues are addressed during this course: new sources of generation; and power quality standards and regulation

Course Outlines
Day 1 Content Voltage quality: introduction of terminology on power quality and the need for voltage characteristics as a performance criterion for the power supply. Overview of power quality disturbances. Causes of voltage dips: Short circuits as the main concern for both customers and network operators. Propagation of voltage dips through the network. Other causes of voltage dips: motors, transformers and capacitor energizing. Calculation of duringdip voltages for balanced dips: examples and exercises. Non-symmetrical faults. Unbalanced dips due to non-symmetrical faults. Classification and characterization of balanced and unbalanced dips: the ABC classification. Symmetrical component voltages. Propagation of unbalanced voltage dips. Calculation of during-dip voltages for unbalanced dips: examples and exercises. Impact of voltage dips on equipment and installations. Impact of dips on different types of single-phase and three-phase equipment. Why do dips result in equipment trips and production stoppages?	Day 2 Content Mitigation of voltage-dip problems. Breaking the chain from fault to production stoppage. Limiting the number of faults. Installing mitigation equipment at the network-equipment interface. Improving equipment performance. Power-quality audits. Voltage-dip statistics and stochastics. Predicting the number of dips experienced by a customer. Simple manual calculations: method of critical distances. Calculation of the expected number of dips: examples and exercises. Detailed computerized calculations: method of fault positions. Calculation examples in existing networks. Voltage dip measurements. Why and how to measure. Trouble shooting and permanent measurements. Analysis and presentation of measurement results. Voltage-dip indices. Standards and regulation. Overview of power-quality standards. Equipment immunity standards. Requirements on network performance and voltage-quality regulation. Responsibility sharing between the network operator and the customer. Recent developments on standards and regulation. Distributed generation and wind power. Power quality aspects of new generation sources. Integration of distributed generation: a power-quality problem? The hosting-capacity approach to determine the limit to integration of new generation sources. Integration in distribution and transmission systems. Immunity requirements on wind-power installations.

Course Outlines

Day 1 Content

Voltage quality: introduction of terminology on power quality and the need for voltage characteristics as a performance criterion for the power supply. Overview of power quality disturbances.
Causes of voltage dips: Short circuits as the main concern for both customers and network operators. Propagation of voltage dips through the network. Other causes of voltage dips: motors, transformers and capacitor energizing. Calculation of duringdip voltages for balanced dips: examples and exercises.
Non-symmetrical faults. Unbalanced dips due to non-symmetrical faults. Classification and characterization of balanced and unbalanced dips: the ABC classification. Symmetrical component voltages. Propagation of unbalanced voltage dips. Calculation of during-dip voltages for unbalanced dips: examples and exercises.
Impact of voltage dips on equipment and installations. Impact of dips on different types of single-phase and three-phase equipment. Why do dips result in equipment trips and production stoppages?

Day 2 Content

Mitigation of voltage-dip problems. Breaking the chain from fault to production stoppage. Limiting the number of faults. Installing mitigation equipment at the network-equipment interface. Improving equipment
Voltage-dip statistics and stochastics. Predicting the number of dips experienced by a customer. Simple manual calculations: method of critical distances. Calculation of the expected number of dips: examples and exercises. Detailed computerized calculations: method of fault positions. Calculation examples in existing networks.
Voltage dip measurements. Why and how to measure. Trouble shooting and permanent measurements. Analysis and presentation of measurement results. Voltage-dip indices.
Standards and regulation. Overview of power-quality standards. Equipment immunity standards. Requirements on network performance and voltage-quality regulation. Responsibility sharing between the network operator and the customer. Recent developments on standards and regulation.
Distributed generation and wind power. Power quality aspects of new generation sources. Integration of distributed generation: a power-quality problem? The hosting-capacity approach to determine the limit to integration of new generation sources. Integration in distribution and transmission systems. Immunity requirements on wind-power installations.

Speakers

Dr Math Bollen is manager power quality and EMC at STRI AB, Ludvika, Sweden and professor at Luleå University of Technology, Skellefteå, Sweden.

Dr Bollen has written numerous papers on power quality, reliability and related subjects. He has written a number of fundamental papers on voltage dip analysis and two textbooks on power quality: “Understanding power quality – voltage dips and interruptions” and “Signal processing of power quality disturbances” and is viewed as one of the leading researchers on power quality.

He has actively contributed to IEEE, IEC and CIGRE working groups on power quality and is currently convenor of CIGRE/CIRED/UIE joint working group on voltage dip immunity. He is a Fellow of the IEEE.

Dr Bollen currently works on a variety of power quality and reliability projects and on integration of distributed generation and wind power in the electric power system.

Registration, Accommodation, and Further Information

Registration: goto the EEA website Click here: Engineering Education Australia (EEA)
Accommodation if required is the responsibility of participants.

Technical enquiries

If you have any enquires regarding the course content please email Australian Power Institute (API) Chief Executive, Mike Griffin.