TUNING UP YOUR FLEET – UPGRADES MADE BY THE NORDEX GROUP

0108

Upgrades

Upgrades made by the Nordex Group – Higher yields & optimized performance

We use our nearly 35 years of expertise in manufacturing our highly-efficient wind turbines to deploy the latest developments of our serial production, as well as for the continuous optimisation of the existing fleet.

By optimising performance, availability and security of existing turbines, we enable our customers to achieve higher yields. At the same time, the experience of our long-standing, globally-operating Service network, the analysis of the data from our wind farms installed worldwide, and the solutions generated at our headquarters in Hamburg, are all continuously integrated into all new turbine developments, as well as our existing fleet.

With the Upgrades made by Nordex range, and the Xtended Series, our Upgrades & Modernisation team offers operators of existing turbines the opportunity to bring their technology quickly and cost-efficiently in line with the latest developments via tailor-made upgrade packages.

Our precisely fitting upgrade products are developed to turn existing fleets into state-of-the-art solutions, without any lengthy project planning process. An extended lifetime, higher yields, or an optimised sound concept – we not only improve your return on investment, but set high availability and safety as the top priority.


0208

XTENDED POWER DELTA

UP TO 3,5% HIGHER AEP

Xtended Power Delta offers the flexibility needed to max out the full potential of your Delta turbine and achieve an increase of up to +3.5 percent in annual energy production. Available for turbines of generation Delta.

1. ANALYSIS OF THE POTENTIAL FOR OPTIMISING A SPECIFIC PROJECT

Using our TÜV-certified analysis method as a basis, and taking into account the specific characteristics of your site, we evaluate the load buffers of each individual wind turbine to calculate the potential for boosting the yield.

2. SELECTION OF THE IDEAL POWER MODE FOR YOUR SIDE

Depending on the specific potential that your wind farm has for optimisation, our experts propose one of three power modes, and, where applicable, a combination with our Xtended Lifetime Delta product. We will offer you a proposal to meet your specific requirements.

3. ADMINISTRATIVE SUPPORT AND IMPLEMENTATION


Our team of technology experts and local operatives will help you communicate with the relevant authorities and grid operators. We will ensure that the upgrade process of your wind turbine runs smoothly.

Seamless contractual transition
For reliable continued operation of your turbine, we offer you the possibility to agree on a Service contract beyond the twentieth year of operation.

0308

Xtended Lifetime

More time for operations, more time for yield

For the lifetime extension of your turbine, proof of structural stability and operational strength is required.
Assessment for the lifetime extension is carried out in two steps. First, a TÜV expert conducts an on-site, visual inspection of your turbine – including the rotor blades. In the second step, an analytical calculation to determine the future operating potential of the turbine is carried out. For this purpose, the site-specific load impact of your turbine is calculated and compared with the design loads for that turbine type.

As the manufacturer, we have all relevant data from previous years, from design drawings, to type testing, load model and SCADA data that is required in order to accurately calculate the operating time. We can also support you in implementing the measures or requirements needed for lifetime extension. Finally, you will receive an expert opinion for submission to the responsible authorities, if required.

Available for turbines of generation Alpha, Beta and Gamma.

0408

Xtended Power alpha beta

The package for extra yield of up to 2%

1. OPTIMISED PITCH CONTROL
With the Improved Start-up upgrade, Alpha and Beta generation turbines profit from better performance at wind speeds lower than six meters per second. Fine-tuned blade adjustment control results in better inflow conditions, which in turn, increase performance. To upgrade existing turbines to the same standard of technology, we offer a project-specific simulation of the improved performance.

Available for turbines of generation Alpha and Beta.

2. INTELLIGENT TURBINE CONTROL
Our Advanced Power technology makes it possible to increase performance at moderate wind speeds by incorporating additional environmental parameters in turbine control . The Advanced Power solution enables the intelligent interplay of sensors, the evaluation of measured data and automatic response. This customised response to actual environmental conditions optimises the control of your turbine.

Available for turbines of generation Alpha and Beta.

0508

Winter Products

LOW TEMPERATURES, HIGH YIELD

Minimise downtimes and secure higher yields during the cold months. This is precisely what can be achieved with our winter products: the “Rotor Blade Ice Detection System” and the “Extended Operating Range to -20 °C”.

1. ROTOR BLADE ICE DETECTION SYSTEM
Benefit from the continuous monitoring of the rotor blades for ice formation and increase personal safety in your wind farm. The sensors in each rotor blade measure dynamic structural changes to the blades. In the event of critical ice formation, an alarm message is sent and the wind turbine immediately shuts down. The turbine automatically restarts once the critical ice formation is no longer present.

Available for turbines of generation Delta and Gamma.

2. EXTENDED OPERATING RANGE TO -20 °C
Increase your yield, even during cold ambient temperatures, by extending your turbine‘s temperature range down to -20 °C. Temperature-related downtimes between -10 °C and -20 °C are reduced or even eliminated entirely by the optimised operation control. With this, the turbine can restart in temperatures as low as -18 °C, as opposed to -8 °C, as it was previously the case.

Available for turbines of generation Delta and Gamma.

0608

Xtended Power Sound

The XTENDED POWER SOUND CONCEPT

The package includes two complementary products – the “Serrations” and the “Sound Mode Optimisation” – these reduce sound emissions while simultaneously increasing performance.

1. SERRATIONS
Serrations are thin, zig-zagged components attached to the rotor blade which reduce sound. They influence the turbulent trailing edge sound by replacing the straight edge of the rotor blade with a serrated one. This reduces the sound power level by around 1.5 decibels, allowing the turbine operator to switch to a higher mode of operation. The turbine’s yield can thus be increased by up to 6 percent without exceeding regulatory specifications.

2. SOUND MODE OPTIMISATION
In order to operate turbines with reduced sound, the power must be curtailed. This is done by adjusting the speed and the torque of the generator. The rotational speed of the rotor blades, and thus the generator speed, must be reduced to achieve a sound reduction. The Sound Mode Optimisation upgrade allows an improvement of the power curve by a targeted increase of the torque while maintaining a stable rotor speed and low sound emission. Yield can be increased up to 7 percent this way.

SITE-SPECIFIC ANALYSIS
In the first step, the site-specific optimisation potential of your wind turbine is determined. The Serrations installation is carried out by our rope technicians directly up-tower on the rotor blades. After the installation of the Serration components, our engineers set the parameters. The system is then switched to a higher operating mode, resulting in a performance increase.
For the Sound Mode Optimisation upgrade, a new operating mode can be set that further optimises the power curve during a sound-reduction.

Both products are also available seperatly.

0708

Vortex Generators

Optimized flow conditions

Increase your turbine’s efficiency by around two percent with optimised flow conditions at the blade. Vortex generators can counter early stall at the blade root. The air flow is stabilised and lift at the rotor blade is increased.

This will increase your turbine’s power. The vortex generators, which are individual to the rotor blade type, are installed on-site on the top side of the rotor blade.

Available for specific Gamma models.

0808

Upgrade Brochures

MORE DETAILS IN OUR SERVICE BROCHURES