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Siemens to improve electricity grid performance

Released at: 16:00, 11/04/2017

Siemens to improve electricity grid performance

Photo: Siemens

Tech giant will supply and install products and systems for detecting and evaluating failure situations in national transmission grid.

by Linh San

As part of an extensive program to ensure a reliable national power supply, Siemens has received an order from the state-run energy company, the Electricity of Vietnam National Load Dispatch Centre (EVN NLDC), to improve the performance of the nationwide transmission grid.

Siemens will supply and install products and systems for detecting and evaluating failure situations in the grid, ensuring grid quality and detecting and monitoring dynamic grid states.

“In addition to power supply shortages, Vietnam is encountering high transmission and distribution losses for a number of reasons,” said Dr. Thai-Lai Pham, President and CEO of Siemens Vietnam. “The Vietnamese Government has put a great deal of effort into reducing these losses. With this order, Siemens is proud to be able to support our customer, EVN NLDC, in successfully fulfilling their challenging tasks while realizing our commitment to assisting Vietnam to improve its grid performance.”

The equipment will be installed in substations throughout the country and in grid control centers, where it will help increase the grid’s failure tolerance, improve its transmission capacity, and optimize the expansion of new primary plants.

The goal is to make better use of existing grid infrastructure and be able to connect additional loads as well as prevent outages that could result from overloading. The substations and control centers are expected to be equipped with the new technology and go into operation by mid-2018.

Fault recorders from the Siprotec 5 7KE85 series, combined with the Sicam PQS evaluation software, will be used in 73 Vietnamese substations, and the Siguard PDP wide-area monitoring system will be employed in three regional and one national grid control center. These fault recorders work with an integrated function for measuring synchrophasors to monitor grid dynamics and measure grid quality.

The devices enable the event-based evaluation, analysis and documentation of processes in the grid, including critical load situations, short-circuits, power fluctuations and power swings. The integrated Sicam PQS evaluation software evaluates the fault recorders to provide a quick overview of grid quality.

The Siguard PDP (Phasor Data Processor) wide-area monitoring system in the one national and three regional control centers will also help ensure that the transmission grid in Vietnam operates reliably. It uses synchrophasors in real time, making it easier to quickly assess the current condition of the grid. For example, power swings and fluctuations are immediately displayed to help control center personnel determine the cause of the problem and immediately take corrective action.

Siemens AG (Berlin and Munich) is a global technology powerhouse that has stood for engineering excellence, innovation, quality, reliability, and internationality for more than 165 years. The company is active in more than 200 countries, focusing on the areas of electrification, automation, and digitalization. One of the world’s largest producers of energy-efficient, resource-saving technologies, Siemens is a leading supplier of efficient power generation and power transmission solutions and a pioneer in infrastructure solutions as well as automation, drive and software solutions for industry.

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