Category: GE

Power Conversion’s references

PSPP Goldisthal (Germany)

The PSPP Goldisthal is located in Thüringen (in the east-

southern region of Germany) and has a capacity of 1060MW.

The project has begun in 1997 and produced energy since

2003. There are two variable speed machine sets with

AC-excitation and asynchronous machine and two fixed

speed machine sets with start-up frequency converter and

synchronous machines.

Goldisthal is one of the first pumped storage power plants

where the decision was taken to use the variable speed

technology to improve operation behaviors and increase the

advantages in regard of efficiency in full load and especially

the significant improvement in part load operation.

Power Conversion’s scope includes:

• Two 100MVA converters for the variable speed asynchronous machines

• Two SFCs with 18kV / 40MW for starting up all machines

• Two static excitation equipment (SEE) units for the synchronous machines

Our advantages

• Proven technology & decades of experiences in power

electronics

• Wide range of systems architecture tailored to projects specifics

• Grid code compliance simulation / grid forming control

• Integrated solution with mechanical OEM

• Numerous references of large pump storage system,

including largest projects in Europe

• Centralized expert team in Germany (Center of Excellence)

• Global partner with strong regional presence

• Strong presence in North America (local facility with

manufacturing, engineering and service)

Multiple reasons for investing in PSPP

When investing in a pumped storage power plant, decision

makers identify and define the main requirements the plant

has to fulfill. Reasons may vary, for example with the main

drivers being to produce power from water as a renewable

energy source, to balance the grid or to build a large-scale

energy storage system to help manage the power grid

and security of supply. Investors and decision-makers need

to identify the best technology suitable to meet the project’s

specific purpose.

Power Conversion’s technology for

variable PSPP applications

The heart of Power Conversion’s converter systems

are press-pack IGBTs.

Power Conversion uses rugged, robust press-pack IGBT

technology, which is superior to standard grade IGBT

technology. Press-pack IGBT yields better surge current

rating, improved thermal cycling and longest lifetime.

Press pack IGBTs do not use failure prone bond wires.

Power Conversion’s control technology supports different

algorithms for line side control, as well as various operation

modes that are required by grid operators around the world.

If required, Power Conversion offers support for grid

approvals with HIL simulators.

Power Conversion builds customized solutions

to meet your specifi c space requirements

Examples for possible arrangements for each kind of topology

which reflected pumped storage power plants with variable

speed approach. Needed space inside the power plant is strictly

connected to the specific requirements on our equipment and

design of the machine set. Power Conversion is investigating

and checking all relevant data to provide the best solution to fit

in the appropriate rooms for green field and brown field projects.

Voice of our customers

With our expertise and extensive know-how with large scale

PSPP projects, we are able to support our customers with

customized solutions that help minimize costs while

maximizing output.

Available operation modes

• Variable speed in turbine mode

• Variable speed in pump mode

• Braking mode

• Statcom operation

• Black start

• Island mode

• LVRT/HVRT capability

• Virtual inertia (dynamic grid support)

Support for grid model and approvals

• Support grid approval with hardware

in loop simulator (HIL)

• RMS models DIG silent power factory & PSSE

• Transient models MATLAB & PSCAD

• Model validation with HIL

Extensive expertise in

variable speed projects for hydro

With our variable speed drive technology, pumped storage plant

operators are better able to meet the need for peak supplies

of power while in turbine mode. Also, the plant achieves higher

efficiency levels in partial-load conditions because the machine

speed can be adjusted to meet the grid’s changing power

requirements while maintaining the turbine close to its highest

efficiency point. At last operators have greater control over the

plant’s performance in pump mode, by being able to control

the power consumed from the grid while refilling the upper reservoir.

However, in order to react to changing wind and solar power

conditions that can undermine grid reliability, pumped storage

power plants need to have greater flexibility and shorter

response time. Reversible pump turbines with variable speed

motor-generator provide adjustable discharge and power in

both turbine and pump operation, plus enhanced grid services

like virtual inertia.

Our electrical solutions for diff erent

pumped storage power applications

Power Conversion offers integrated solutions for conventional

fixed speed, as well as variable speed doubly-fed (as 3kV or

6kV converter technology) or fully-fed systems, helping to

minimize cost, maximize energy output and provide optimal grid support.

Each pump storage project is unique

With our full range of water to wire solutions, we help you to

optimize your grid performance, reduce system and operating

cost, enhance energy output and lower overall project risk by

benefiting from our enterprise synergies.

We use leading technology based on standardized components

as building blocks for power generation, conversion and grid connection.

Power Conversion’s hydro power capabilities,

key products and system solutions

Our hydro power capabilities support electrifying

pumped storage and run-off river power plants.

Power Conversion’s Variable Speed Drive System (VSDS) can

increase productivity in a pumped storage power plant.

Our technology

• Our Voltage Source Inverter (VSI) technology

enables PSPP to significantly expand their capabilities

• Innovative AC-excitation technology is based on a

powerful, robust, and flexible solution of high-end VSDS

• Our Static Frequency Converters (SFC) start-up the

units sequentially in pump mode and launch them

to the grid within a few minutes

Power Conversion – a global partner

with a local footprint

Our regional presence with key facilities and the right

partners allows us to support your hydro business

worldwide.

All regions are directly connected to our Center of

Excellence (CoE) for hydro pump storage in Berlin, Germany,

where we bundle competencies and use our knowledge

to focus on the best solutions for our customers. Due to

regional manufacturing, engineering and service facilities in

the US and Europe we can deliver tailor-made solutions with

high domestic content.

We offer all power conversion and grid integration equipment

for large hydropower plants, such as pumped storage, river

and tidal applications, from planning and optimization to

manufacturing, installation and commissioning, and lifelong

services and consultancy.

GE Vernova’s Power Conversion business designs energy conversion

systems that provide tailor-made solutions for mission-critical applications

Power Conversion provides customized

solutions for reliable applications

Power Conversion’s pumped stoarge power plant (PSPP)

portfolio includes variable speed drive solutions such as

AC-excitation systems with 3kV and 6kV converter drives,

fully-fed applications, fixed speed solutions with start-up

equipment as well as DC-excitation systems.

We offer all power conversion and grid integration equipment

for large hydropower plants, such as pumped storage, river

and tidal applications, from planning and optimization to

manufacturing, installation and commissioning, and lifelong

services and consultancy.

Touchscreen for Operator Control and Maintenance

Replacing antiquated meters and

pushbuttons with modern touchscreen

controls will immediately improve your

ability to operate, maintain and

enhance diagnostic management of your SFC’s controls.

Input/OutputModules (PIBeCard)

• Modular construction

• Up to 8 digital inputs and 4 outputs (24VDC)

• Up to 8 analog inputs and 4 outputs (+/-10VDC)

GE’s Service Programs Tailored to your

Application and Needs:

• Replacement of Parts & Repair Services

• Preventive “Performance” Maintenance (Annual)

• Preventive “Major” Maintenance (once every 3 or 5 years)

• Long Term Service Agreements

• Local Field services & Repairs

• Retrofits, Refurbishments and Upgrades

• Interactive trainings

• Remote support via VISOR