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GE’s high-power density power electronics modules on the horizon

By Paul Dvorak | January 19, 2016

As the wind industry works to reduce the cost of energy, manufacturers have increasingly sought to increase the size of the turbines. The bigger they are, the more power they can extract from the wind.

A myriad of complex and often tiny components all working together are vital for transforming the wind’s energy into electricity. As turbines are built larger, its components must work harder than those on smaller units. Consider the converters. They must deliver far more power capability in large wind turbines compared to smaller ones. A higher density power stack is vital to keeping the converter relatively small while delivering more power.

Acknowledging this industry need, GE Power Conversion created the LV3 power stack which has increased density, reaching 1,250 amps compared to previous offerings of 1,000 amps. Looking at the wind sector in particular, when implanted at the heart of GE’s LV3 converter, it creates up to 25% more power given same wind converter footprint, helping to reduce the levelized cost of energy (LCOE).GE LV3_Power_Stack_Infographic_Final

The LV3 was born out of multiple successful power module platforms – proven technologies developed by GE over the years. Yet, this next generation power module has even more flexibility and reliability thanks to a single modular design, which can benefit the industry several ways:

Increased reliability

The versatility to use the LV3 Stacks across different sectors, including wind, tidal and solar, helps to develop a global engineering community, which is able to address and fix issues across multiple industrial segments. Use of the same component across segments allows engineers to gain a vast understanding and knowledge of its performance, enabling them to continuously push the design limits while maintaining reliability for customers.

Furthermore, working with proven modular building blocks increases components’ speed to market, allowing more predictable costs with mature technology and proven performance.

Speed of training

Having several different types of converters means that engineers must be trained to fix and replace hundreds of different parts. Standardizing all power stacks so the same converter is used throughout reduces the amount of training each engineer must undertake. Engineers are therefore equipped with the necessary skills faster, wasting no time to prepare themselves to get out in the field.

Easier inventory management

For each supplier, managing inventory for various different parts can be difficult, time consuming and costly. Creating one standardized product leads to easier inventory management.

In addition, standardizing the power stacks can also result in similar parts being used in greater volumes across different sites and sectors, which can contribute to further cost savings.

Improved service

Use of one standardized power stack across different segments means that if there is a component failure, the necessary parts will be made readily available – alongside an expert engineer – across the world. This can significantly reduce downtime and result in better availability to customers through speeding up delivery times.

What’s more, as additional applications are developed from the same standardized building blocks, it’s easier for engineers and service teams to re-use existing procedures and troubleshooting tools to address potential issues, simplifying service and maintenance procedures while lowering overall cost of ownership.

The global demand for clean, renewable energy is rising and the reliability of renewables is crucial. In the future, LV3 power stacks will be at the core of GE Power Conversion’s low-voltage converters. It will continue to offer improved reliability, increased availability and drive down operational expenses – ultimately lowering the cost of energy for the end user – across multiple industrial segments.


Filed Under: News, O&M
Tagged With: electronics, GE, service
 

About The Author

Paul Dvorak

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