Ybbs-Persenbeug power plant

Ybbs-Persenbeug power plant
Ybbs-Persenbeug power plant
location
Coordinates	48 ° 11 '25 "  N , 15 ° 4' 13"  E Coordinates: 48 ° 11 '25 "  N , 15 ° 4' 13"  E
country	Austria - Lower Austria
place	Ybbs / Persenbeug
Waters	Danube
Kilometers of water	km 2060.42
Height upstream	226.2  m above sea level A.
power plant
owner	VERBUND Hydro Power AG
operator	VERBUND Hydro Power AG
construction time	1954-1959
technology
Bottleneck performance	236.5 megawatts
Average height of fall	10.9 m
Expansion flow	2,650 m³ / s
Standard work capacity	1,336 million kWh / year
Turbines	6 Kaplan turbines 1 Kaplan bulb turbine
Generators	7 synchronous generators
Others

The Ybbs-Persenbeug power plant is a run-of- river power plant on the Austrian Danube in the state of Lower Austria . It is at the end of the Strudengau between Ybbs an der Donau and Persenbeug .

history

The first plans for the Ybbs-Persenbeug power plant were made in the early 1920s. In addition to energy production, the water level at the rock thresholds in Strudengau and at Aschacher Kachlet should also be raised for shipping . The Swiss civil engineer Oskar Höhn planned a preliminary project in 1924. Based on this, the “Syndicate for the Danube Power Plant Ybbs-Persenbeug” received a concession for 90 years from the Austrian Ministry of Agriculture. The water law permit followed in 1936 for the southern indicator members Österreichische Creditanstalt , Wiener Bankverein and Oskar Höhn. After Austria was "annexed" to the German Reich, Rhein-Main-Donau AG took over the project with the aim of putting the power plant into operation by 1943. Preparatory construction work began in 1938. In August 1939, the first sheet pile walls were rammed when construction work ceased. Following the intervention of Arno Fischer, the decision was made to reschedule the power plant in order to build an Arno Fischer underwater power plant instead of a conventional power plant with Kaplan turbines , with an increase in the dam target by 1.5 meters. Construction work on the river resumed in 1943 and stopped again in late 1943.

The final construction began after 55 project variants and the final rescheduling to Kaplan turbines, the Österreichische Donaukraftwerke AG , in 1954, whereby Karl Hauschka emerged as the winner of the architectural competition. Before that, in the summer of 1953, the Soviet occupying forces had to agree to release the confiscated German construction site equipment. The dam was built in the flow bed using wet construction. After five years of construction, the first hydropower plant of the Austrian Danube Power Plants was opened in 1959 and celebrated as a symbol of the Austrian reconstruction in the post-war years and the Second Republic .

In the 1990s, the operator DoKW built an additional seventh machine set, which went into operation in 1996, while full operation continued. In 1999, DoKW was transformed into Austrian Hydro Power AG .

In 2012 we started to replace the standing Kaplan turbines as well as the control technology and the control. By the end of 2020, these investments should achieve an increase in output of 6%.

technical description

Dam

The 460 m long dam dams the Danube at river kilometer 2,060.42 over a length of around 34 km up to a height of 10.9 m. The content of the storage space is approx. 74 million m³, the storage target is 226.2 m above sea level .
At the left, northern end of the dam are the two locks , each with a usable length of 230 m and a usable width of 24 m.
The weir consists of 5 weir fields, each 30 m wide, and is located in the middle of the dam.

Machine house

Originally, a machine house was built on the left (north power plant) and right (south power plant) of the weir system. Six sets of machines generate electricity for the public power grid and two smaller sets of machines generate electricity for the power station's own use. The machine set 7 installed in the 1990s received a new machine house on the south bank.

Technical specifications

	Machine sets 1–4, 6	Machine set 5	Self - use machine sets	Machine set 7
Turbines
Type	Kaplan turbine			Kaplan bulb turbine
arrangement	perpendicular			horizontally
Nominal power in kW	32,300	33,800	1,765	48,000
Nominal flow in m³ / s	350			500
Impeller diameter in m	7.4	7.6		7.5
Nominal speed in 1 / min	68.2	75.0		75.0
Three-phase generators
Nominal power in kVA	45,000			46,000
Nominal voltage in volts	10,300			8,000

Overall, the power plant has a bottleneck capacity of 236.5 MW.

With an expanded flow rate of 2,650 m³ / s, the standard energy capacity is 1,335.9 million kWh per year .

• 

  Construction of the power plant in 1956

• 

  Südkraftwerk in the direction of flow, 2011

• 

  Model of the Kaplan bulb turbine in the power plant

traffic

Until 1959, the waterway in Strudengau was very dangerous and feared in shipping because of the high flow velocity and eddies ("vortices"). The dam finally defused this section of the route.

As the only Danube power plant in Austria, its structure has also formed a road bridge in the course of a state road B since it was built . The Erlauftal Straße (B25) begins in Persenbeug on the left , northern bank and leads to the town of Ybbs on the right of the Danube and further south to Styria .

In the upper water, the narrow valley is formed on both banks by relatively steep rock, which means that the power plant does not need a side channel despite the relatively high level of damming.

See also

• List of Austrian power plants
• List of reservoirs in Austria

literature

• Gerhard A. Stadler, Manfred Wehdorn , Monika Keplinger, Valentin E. Wille: Architektur im Verbund (= series of research in Verbund 100). Springer Verlag, Vienna a. a. 2007, ISBN 978-3-211-75795-6 .

Web links

Commons : Kraftwerk Ybbs-Persenbeug  - Collection of images, videos and audio files

• Website for the Ybbs-Persenbeug power plant

Individual evidence

1. ↑ Martin Gschwandtner: There was once a Kohlenklau - Technology under the yoke of the Nazi dictatorship Arno Fischer and the aberration of the underwater power plants in the period from 1933 to 1945 . Grin Verlag, Norderstedt 2009, ISBN 978-3-640-56524-5 , p. 51 ff.
2. ^ Ybbs-Persenbeug run-of-river power plant. Retrieved April 13, 2015 . 
3. ↑ Ybbs2020: accessed on site at the start of the project on October 5, 2016