Boehringer Ingelheim International Gmbh

Repower Systems Se

Repower Systems Ag

Boehringer Ingelheim Pharma Gmbh & Co Kg

Senvion Se

Thomas Krueger

Juergen Schnaubelt

Werner Rall

Rainer Soyka

Emanuel Stehle

Uwe Joerg Ries

Marco Santagostino

Rolf Schmid

Adil Duran

Guenther Huchler

Svenja Renner

Carsten Reichel

Jean-Nicolas Desrosiers

Joern Merten

Ludwig Gutschera

Thomas Fachinger

Michael Konrad

Zeno A Leuter

Michael Pangerl

Bianca Werner

Guanghua Lu

Norbert Birk

Heidelore Heimroth

Armin Proell

The application includes a description of novel intermediates, of new manufacturing steps resulting in a novel and improved process for producing the intermediates and the final compounds, i.e., 6-alkynyl-pyridine derivatives. The intermediates of the invention are useful to produce 6-alkynyl-pyridine derivatives, which compounds are useful for the treatment of cancer.

Process for the manufacture of 6-alkynyl-pyridine derivatives

Provided herein is a wind energy installation including a generator for production of electrical energy, a rotor which drives the generator and has variable pitch rotor blades and a central control device, and individual pitch devices provided individually for the rotor blades. The individual pitch devices may include an adjustment drive, a communication link to the central control device and a regulator, the rotor blades being adjustable in order to slow down the wind energy installation to a shut-down position. The individual pitch devices may also include a disturbance situation detector which is designed to identify abnormal operating states and to move the rotor blades to a shut-down position. Also provided herein is the method of operating such a wind energy installation.

Wind energy installation with individual pitch devices

A wind energy installation control device includes a wind rotor, a generator driven by the wind rotor, a torque control unit configured to control a torque of the generator, and a control system. The control system includes a detector configured to identify a grid dip and an end of the grid dip, a residual torque transmitter configured to provide a set point for a torque of the generator after identification of the grid dip, and an initializer configured to initialize a component of the torque control unit at the set point. Accordingly, upon return of grid power after a grid dip, the vibration behavior of a wind power system can be significantly improved. Overload of a drive train upon return of grid voltage can thus be reduced.

Control device for wind power systems having power failure detection

The invention relates to a method for the operation of a wind power plant () with a rotor () and a rotating apparatus () connected with the rotor (), wherein a rotor speed (n) and a rotating apparatus speed (n) are interrelated via a specifiable transmission ratio, wherein the rotating apparatus speed (n) is determined, and wherein a rotational speed measurement value (rpm) is captured for the determination of the rotating apparatus speed (n). The method according to the invention is characterized in that the rotational speed measurement value (rpm) is corrected with an intermittently variable correction value (rpm) so that the determined rotating apparatus speed (rpm) results, and wherein the determined rotating apparatus speed (rpm) is fed as the actual value into a regulation apparatus () of the wind power plant ().

Rotational speed determination

The present invention relates to a process for preparing betamimetics of formula 1, 

Process for the manufacturing of betamimetics

A wind energy installation including a wind rotor, a doubly-fed asynchronous generator driven by the wind rotor, a converter, and a controller configured to determine an operating torque for an operating rotation-speed, the operating torque not exceeding a maximum torque. The installation also includes a frequency-adaptive torque limiter having a classifier&#x2014;for an overfrequency or underfrequency, a torque shifter configured to reduce the maximum torque in the event of frequency discrepancies, and an inhibitor configured to block the torque shift at an underfrequency. The installation further includes a frequency-dependent rotation-speed limiter configured to interact with the classifier such that a lower limit rotation-speed is increased only at an overfrequency and an upper limit rotation-speed is reduced only at an underfrequency. Accordingly, the operating torque can be adapted with respect to the permissible limit values rather than over the entire operating range, thus minimizing yield losses when frequency discrepancies occur.

Wind energy installation with variable rotation speed characteristic

A process for preparing compounds of the formula (I) in which Rand Rare as defined in the description.

Preparation process

The invention relates to a method and a system for regulation of the rotational speed () of a rotor on a wind energy unit with a generator and a rotor blade. The first set parameter is a pitch angle (Pitch) of the rotor blade and the second set parameter is the torque of the generator. The system comprises a pitch angle control or regulation device (), a torque control or regulation device (), a first device for determination of a first rotational speed set value () (first rotational speed set value determination device ()) and a second device () for determination of a second rotational speed set value () (second rotational speed set value determination device ()). The first rotational speed set value () may be supplied to the pitch angle control or regulation device () and the second rotational speed set value () may be supplied to the torque control or regulation device (), wherein the first and second rotational speed set value ()) may be different from each other.

Method and system for regulation of the rotational speed of a rotor on a wind turbine

The present invention relates to a process for preparing the compound 3-(4-piperidinyl)-2,3,4,5-tetrahydro-1,3-benzodiazepin-2(1H)-one of formula which is to be found as a structural element in CGRP antagonists which are suitable above all for the oral therapy of migraine. 

3-(4-piperidinyl)-2,3,4,5-tetrahydro-1,3-benzodiazepin-2(1H)-one

The present invention relates to a process for preparing the compound 3-(4-piperidinyl)-2,3,4,5-tetrahydro-1,3-benzodiazepin-2(1H)-one of formula which is to be found as a structural element in CGRP-antagonists, which are particularly suitable for the oral treatment of migraine.

Growing community of inventors

Westerroenfeld, Germany

Thomas Krueger