Patent application number | Description | Published |
20130057989 | METHOD FOR LIMITING THE GENERATOR VOLTAGE OF A PHOTOVOLTAIC INSTALLATION IN CASE OF DANGER AND PHOTOVOLTAIC INSTALLATION - A protection system configured to couple between a generator that has a number of partial strings and an inverter includes a control device, and a series-connection switching device configured to selectively connect the partial strings together in series. The system also includes a parallel-connection switching device configured to selectively connect the partial strings together in parallel, wherein the series-connection switching device is actuated by the control device such that it interrupts the series connection of the partial strings in case of a hazard, and the parallel-connection switching device is actuated by the control device such that it connects the partial strings together in parallel in case of a hazard. | 03-07-2013 |
20130058140 | METHOD FOR LIMITING THE GENERATOR VOLTAGE OF A PHOTOVOLTAIC INSTALLATION IN CASE OF DANGER AND PHOTOVOLTAIC INSTALLATION - An inverter operable to interface with a generator that has a number of partial strings includes an inverter bridge circuit configured to connect to the partial strings, and a control device operably associated with the inverter bridge circuit. The inverter further includes a series-connection switching device configured to selectively connect the partial strings in series in response to a control signal from the control device such that the series-connection switching device interrupts the series connection of the partial strings in case of a hazard condition detected by the control device. | 03-07-2013 |
20150280423 | METHOD AND DEVICE FOR PROTECTING SEVERAL STRINGS OF A PHOTOVOLTAIC GENERATOR FROM REVERSE CURRENTS - In order to protect reverse currents, several strings of a photovoltaic generator, which are connected in small groups respectively via a DC/DC-converter, parallel to a common DC voltage intermediate circuit, the current which flows over each of the DC/DC-converter is detected and if a reverse current is detected flowing through one of the DC/DC converters, the converter is stopped by controlling the DC/DC-converter. | 10-01-2015 |
Patent application number | Description | Published |
20100015676 | METHOD FOR PRODUCING POLYESTEROLS - The invention relates to a process for preparing polyesterols from at least one base polyesterol and at least one further reagent, wherein
| 01-21-2010 |
20100021992 | ENZYMATIC DECOMPOSITION OF RESIDUAL FORMAMIDE IN POLYMERS - Method for reducing the formamide content of preparations (P) prepared from N-vinylformamide monomers by polymerization. | 01-28-2010 |
20100048927 | PROCESS FOR PRODUCING OF EPOXY-CONTAINING (METH) ACRYLIC ESTERS, USING LIPASES - A process for preparing (meth)acrylic esters (F) of alcohols (A) having at least one epoxy group, in which at least one alcohol (A) having at least one epoxy group is esterified with (meth)acrylic acid (S) or is transesterified with at least one (meth)acrylic ester (D) in the presence of at least one enzyme, the alcoholic leaving group being stable under the reaction conditions in the case of the transesterification. | 02-25-2010 |
20100120617 | Enzymatic Method for the Production of Microcapsules - Process for producing microcapsules comprising an effect-substance-containing capsule core and a polymer-containing capsule covering, comprising the formation of the capsule covering by means of enzyme-catalyzed polymerization of monomers which are present in an inverse miniemulsion; and also microcapsules and dispersions. Use of said microcapsules and dispersions comprising microcapsules as component in colorants, cosmetics, pharmaceuticals, crop protection agents, fertilizers, additives for foods or animal feed, auxiliaries for polymers, paper, textile, leather or detergents and cleaners. | 05-13-2010 |
20100240923 | ENZYMATIC SYNTHESIS OF (METH)ACRYLIC ESTERS OF HYDROXY-FUNCTIONAL AROMAS - A process for preparing (meth)acrylic esters (F) of hydroxy-functional aromas (A), in which at least one hydroxy-functional aroma (A) in the presence of at least one enzyme (E) is esterified with (meth)acrylic acid (S), or transesterified with at least one (meth)acrylic ester (D), the reaction in the case of the transesterification being effected in the absence of solvents. | 09-23-2010 |
Patent application number | Description | Published |
20090024302 | Procedure for the operation of an internal combustion engine - Procedure for the operation of an internal combustion engine, particularly a gasoline engine with direct gasoline injection and controlled self-ignition, whereby the internal combustion engine ( | 01-22-2009 |
20090105930 | METHOD AND DEVICE FOR OPERATING AN INTERNAL COMBUSTION ENGINE - In order to operate an internal combustion engine, a fresh-air quantity, a residual-gas quantity and a fuel quantity are provided as a function of a load demand. During a change of load from a first to a second load demand, provision is made for the residual-gas quantity to first be provided according to the first load demand and for the fuel quantity to first be provided according to the second load demand. | 04-23-2009 |
20090182483 | Method and device for controlling a self-igniting internal combustion engine - A method for controlling a self-igniting internal combustion engine includes: specifying a target combustion position; determining at least one actual combustion position of at least one cycle of the internal combustion engine; specifying a computing model for calculating a following combustion position as a function of the at least one actual combustion position; calculating the following combustion position using the computing model; comparing the calculated following combustion position with the specified target combustion position; and determining at least one operating quantity for operating the internal combustion engine for at least one cycle as a function of the comparison of the calculated following combustion position with the specified target combustion position. | 07-16-2009 |
20090182485 | METHOD FOR REGULATING AN INTERNAL COMBUSTION ENGINE, COMPUTER PROGRAM AND CONTROL UNIT - A method for regulating an internal combustion engine that is operable, at least in a part-load range, in an operating mode with auto-ignition and a combustion process of which is influenced by a manipulated variable, the method includes the steps of determining a desired value of a combustion position feature of the combustion process; determining the manipulated variable by predictive closed-loop control based on a modeling of the combustion position feature as a function of the manipulated variable in the combustion process; and determining, as the manipulated variable, a value at which the difference between the desired value of the combustion position feature and a model-based predicted combustion position feature is minimized. | 07-16-2009 |