Patents by Inventor Richard Blatter
Richard Blatter has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 8321056Abstract: A power plant frequency response characteristic is implemented by controlling the power consumption of a CO2 capture and compression system. A power reserve is provided for under-frequency events without deloading the plant to part load, by an operating method, in which the power consumption of the CO2 capture system is used to control the net output of the plant.Type: GrantFiled: July 12, 2010Date of Patent: November 27, 2012Assignee: Alstom Technology LtdInventors: Richard Blatter, Olivier Drenik, Holger Nagel
-
Publication number: 20110048015Abstract: A power plant frequency response characteristic is implemented by controlling the power consumption of a CO2 capture and compression system. A power reserve is provided for under-frequency events without deloading the plant to part load, by an operating method, in which the power consumption of the CO2 capture system is used to control the net output of the plant.Type: ApplicationFiled: July 12, 2010Publication date: March 3, 2011Applicant: ALSTOM Technology LtdInventors: Richard BLATTER, Olivier DRENIK, Holger NAGEL
-
Patent number: 7466047Abstract: A turbogenerator (20) comprises a rotor (13) and a stator (14), which stator (14) has a polyphase winding, the terminals of which are arranged as generator terminals (U1, . . . ,W2) in a terminal arrangement (25) at the turbogenerator (20) to be connected to a neutral point (26) and to bus bar connections (S1, . . . ,S3). The terminal arrangement (25) is configured such that the phase sequence can be changed in a simple way by changing the connecting scheme at the terminal arrangement (25).Type: GrantFiled: March 13, 2003Date of Patent: December 16, 2008Assignee: ALSTOM Technology Ltd.Inventors: Richard Blatter, Yves Sabater, Michel Verrier
-
Patent number: 6952926Abstract: When loading a power station in a grid without any energy, this power station must be able to cover all the short-term power requirements, and at the same time to keep the grid frequency within a permissible tolerance band. The invention specifies a method of providing this capability by means of an efficient combination system. According to the invention, the gas turbine (1) is loaded in a lower power range such that it is controlled in accordance with a predetermined load program, without having to react to load transients in the grid (50). Before the power station is connected to the grid, the heat recovery steam generator (5) is heated up as an energy store, and a steam turbine (2) is raised at least to its rated rotation speed, with the steam control valves (9, 15) being highly restricted. The steam turbine reacts in the event of short-term load requirements from the grid, which cannot be covered by the gas turbine.Type: GrantFiled: November 12, 2001Date of Patent: October 11, 2005Assignee: Alstom Technology Ltd.Inventors: Richard Blatter, Peter Mueller, Stephan Hepner
-
Patent number: 6954345Abstract: A generator for producing high voltages and having at least one generator winding (12) is connected via a generator circuit (10) to a network (19), which generator circuit has means (15, . . . , 17) for protection against overvoltages. Improved protection against higher voltages is achieved in that the at least one generator winding (12) is subdivided into a number of winding sections (12a-c) whose winding insulation is designed such that the insulation level is graduated, and in that the overvoltage protection means have a number of overvoltage protection elements (15, . . . , 17), which are associated with the respective individual winding sections (12a-c) and whose response levels are matched to the requirements of the associated winding section.Type: GrantFiled: July 22, 2002Date of Patent: October 11, 2005Assignee: Alstom Technology Ltd.Inventors: Richard Blatter, Reinhard Joho, Sture Lindahl, Erland Soerensen
-
Publication number: 20040160134Abstract: In an air-cooled high power generator (10) with static excitation means (19, 22, 24, 26), which static excitation means (19, 22, 24, 26) comprise a cooled rectifier bridge arrangement (26), design simplification, enhanced reliability and space savings are achieved by placing the cooled rectifier bridge arrangement (26) in a cooling air circuit (23) of said generator (10).Type: ApplicationFiled: March 13, 2003Publication date: August 19, 2004Inventors: Richard Blatter, Hans-Werner Schlett, Mathias Wittwer, Oliver Luder, Peter Vogler
-
Publication number: 20040145243Abstract: In a power generating unit a high power generator (28) is connected to a main transformer (29) or grid by means of a generator bus bar (11). A plurality of main current carrying parts (12, 15, 17) and protection and/or excitation circuits (13,14, 16; 18-24) are arranged along the generator bus bar (11) between the generator (28) and the main transformer (29). A simplified and fault-protected assembly is achieved by integrating the main current carrying parts (12, 15, 17) and the protective and/or excitation circuits (13, 14, 16; 18-24) into one generator power module (10).Type: ApplicationFiled: March 13, 2003Publication date: July 29, 2004Inventors: Richard Blatter, Hans-Werner Schlett, Mathias Wittwer, Oliver Luder, Peter Vogler
-
Publication number: 20040045299Abstract: When loading a power station in a grid without any energy, this power station must be able to cover all the short-term power requirements, and at the same time to keep the grid frequency within a permissible tolerance band. The invention specifies a method of providing this capability by means of an efficient combination system. According to the invention, the gas turbine (1) is loaded in a lower power range such that it is controlled in accordance with a predetermined load program, without having to react to load transients in the grid (50). Before the power station is connected to the grid, the heat recovery steam generator (5) is heated up as an energy store, and a steam turbine (2) is raised at least to its rated rotation speed, with the steam control valves (9, 15) being highly restricted. The steam turbine reacts in the event of short-term load requirements from the grid, which cannot be covered by the gas turbine.Type: ApplicationFiled: October 9, 2003Publication date: March 11, 2004Inventors: Richard Blatter, Peter Mueller, Stephan Hepner
-
Publication number: 20030209948Abstract: A turbogenerator (20) comprises a rotor (13) and a stator (14), which stator (14) has a polyphase winding, the terminals of which are arranged as generator terminals (U1, . . . ,W2) in a terminal arrangement (25) at the turbogenerator (20) to be connected to a neutral point (26) and to bus bar connections (S1, . . . ,S3). The terminal arrangement (25) is configured such that the phase sequence can be changed in a simple way by changing the connecting scheme at the terminal arrangement (25).Type: ApplicationFiled: March 13, 2003Publication date: November 13, 2003Inventors: Richard Blatter, Yves Sabater, Michel Verrier
-
Publication number: 20030020352Abstract: A generator for producing high voltages and having at least one generator winding (12) is connected via a generator circuit (10) to a network (19), which generator circuit has means (15, . . . , 17) for protection against overvoltages. Improved protection against higher voltages is achieved in that the at least one generator winding (12) is subdivided into a number of winding sections (12a-c) whose winding insulation is designed such that the insulation level is graduated, and in that the overvoltage protection means have a number of overvoltage protection elements (15, . . . , 17), which are associated with the respective individual winding sections (12a-c) and whose response levels are matched to the requirements of the associated winding section.Type: ApplicationFiled: July 22, 2002Publication date: January 30, 2003Inventors: Richard Blatter, Reinhard Joho, Sture Lindahl, Erland Soerensen
-
Publication number: 20030015926Abstract: A generator (10) for producing high voltages comprises a rotor (12) which is mounted such that it can rotate about a rotation axis (18) and is surrounded by a stator (11), in whose laminated core (28) a stator winding (15) which is formed from insulated cables is arranged, which runs axially within the laminated core (28) and forms end windings (16) at the ends, outside the laminated core (28). In a generator such as this, the cooling is improved and the field control in and between the cables is simplified in that the stator (11) is accommodated with the laminated core (28) and the stator winding (15) in a housing (13) which is closed such that it is liquid-tight and has a cutout for the rotor (12), and in that the interior (14) of the housing (13) is filled with a cooling liquid.Type: ApplicationFiled: July 22, 2002Publication date: January 23, 2003Inventors: Richard Blatter, Reinhard Joho
-
Patent number: 6470688Abstract: The startup time or the output gradient of a gas turbine plant during startup are limited by the maximum permissible temperature gradient. The increase in the fuel mass flow supplied, if appropriate in combination with the combustion-air mass flow supplied, is consequently also limited. In order to accelerate the startup and to increase the output gradient during startup, then, an additional working medium, for example water or steam, increasing the mass flow flowing through the turbine is supplied at the same time as the fuel mass flow and/or combustion-air mass flow. The output gradient is therefore increased with the maximum permissible temperature gradient remaining the same, so that a required output is reached more rapidly.Type: GrantFiled: October 29, 2001Date of Patent: October 29, 2002Assignee: Alstom (Switzerland) LtdInventors: Richard Blatter, Erhard Liebig
-
Patent number: 6385023Abstract: A reclosing apparatus for the auxiliary systems of a plant, in particular a power station, has drive modules (81) for actuating electrical drives (23a, 23b, 33, 53a, 53b, 63, 73) of the auxiliary systems. Each drive module (81) of a reclosable drive (23a, 33, 53a, 63, 73) is assigned a reclosing module (82). When a voltage interruption occurs, the reclosing modules (82) switch the drives (23a, 33, 53a, 63, 73) by opening switches (22a, 32a, 52a, 62, 72). If the end of the voltage interruption is detected within a predetermined time, the reclosing modules (82) switch the drives (23a, 33, 53a, 63, 73) on again. Each busbar (2, 3, 5, 6, 7) which supplies a drive (23a, 33, 53a, 63, 73) provided with a reclosing module (82) is equipped with a microprocessor-controlled voltage monitoring device (21).Type: GrantFiled: November 12, 1999Date of Patent: May 7, 2002Assignee: Asea Brown Boveri AGInventors: Sudhir Pednekar, Hans-Werner Schlett, Richard Blatter, Theo Goebelbecker
-
Patent number: 6378285Abstract: The startup time or the output gradient of a gas turbine plant during startup are limited by the maximum permissible temperature gradient. The increase in the fuel mass flow supplied, if appropriate in combination with the combustion-air mass flow supplied, is consequently also limited. In order to accelerate the startup and to increase the output gradient during startup, then, an additional working medium, for example water or steam, increasing the mass flow flowing through the turbine is supplied at the same time as the fuel mass flow and/or combustion-air mass flow. The output gradient is therefore increased with the maximum permissible temperature gradient remaining the same, so that a required output is reached more rapidly.Type: GrantFiled: January 13, 2000Date of Patent: April 30, 2002Assignee: Alstom (Switzerland) LTDInventors: Richard Blatter, Erhard Liebig
-
Publication number: 20020023425Abstract: The startup time or the output gradient of a gas turbine plant during startup are limited by the maximum permissible temperature gradient. The increase in the fuel mass flow supplied, if appropriate in combination with the combustion-air mass flow supplied, is consequently also limited. In order to accelerate the startup and to increase the output gradient during startup, then, an additional working medium, for example water or steam, increasing the mass flow flowing through the turbine is supplied at the same time as the fuel mass flow and/or combustion-air mass flow. The output gradient is therefore increased with the maximum permissible temperature gradient remaining the same, so that a required output is reached more rapidly.Type: ApplicationFiled: October 29, 2001Publication date: February 28, 2002Inventors: Richard Blatter, Erhard Liebig
-
Patent number: 6112544Abstract: In a generator cooling system (10) for a generator used for current generation in a power station, said generator having a generator cooler (11) which is arranged, together with further coolers (12, . . . , 17), in a closed intermediate cooling circuit (18) which transfers heat to a main cooling water system via at least one intermediate cooler (19, 20), increased capability is achieved by providing, in the intermediate cooling circuit (18), means (32) which improve the transmission of heat from the generator cooler (11) into the main cooling water system.Type: GrantFiled: July 24, 1998Date of Patent: September 5, 2000Assignee: ABB Alstom Power (Switzerland) LtdInventors: Richard Blatter, Philipp Elkuch, Kurt Fischer, Erhard Liebig
-
Patent number: 5416398Abstract: A synchronous machine (22) can be run up with increasing frequency by a controllable frequency converter (21) with an opened switch (S1) and a closed switch (S2), the exciter direct current for its exciter winding (22E) being supplied by a starting converter (23). When the synchronous machine (22) is operated from the power system, it is excited by the direct-current link of this frequency converter (21). In order to increase the availability of the synchronous machine (22), the two static converters (18, 19) of the frequency converter (21) can be selected in two channels so that when one static converter fails due to a fault, the other one generates the link direct voltage (Uzk) required for the direct-current excitation. The rotor of the synchronous machine (22) can be coupled to a gas turbine (28) via a transmission (27).Type: GrantFiled: February 1, 1993Date of Patent: May 16, 1995Assignee: Asea Brown Boveri Ltd.Inventor: Richard Blatter