Patents by Inventor Simo Poyhonen
Simo Poyhonen 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).
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Publication number: 20240170950Abstract: A drive system including: a DC bus, a plurality of power electronics devices, each including a capacitor, each power electronics device being connected to the DC bus in parallel with the other power electronics devices, and a plurality of arc suppressing devices, each being configured to short circuit the DC bus in case of an arcing fault on the DC bus.Type: ApplicationFiled: November 8, 2023Publication date: May 23, 2024Inventors: David Schaeffer, Kalle Huju, Manfred Sievers, Elisabeth Lindell, Simo Poyhonen, Jesper Magnusson, Marley Becerra
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Patent number: 10312794Abstract: A chopper assembly including at least two chopper units, and a controlling unit configured to generate a control signal for controlling an activation of the corresponding chopper unit in cycle. The activations of the at least two chopper units are controlled by the controlling unit to be either initially offset by a phase shift or adjusted to have a phase shift after a predefined time duration, the phase shift indicating a time difference between rising edges or between falling edges of respective pulses of different signals. The chopper assembly according to the present disclosure effectively mitigates the negative impact to various components within the circuit. Moreover, by controlling the duty cycles of the control signals, loads of each of the resistors will be equal.Type: GrantFiled: May 30, 2018Date of Patent: June 4, 2019Assignee: ABB Beijing Drive Systems Co., Ltd.Inventor: Simo Poyhonen
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Publication number: 20180278142Abstract: A chopper assembly including at least two chopper units, and a controlling unit configured to generate a control signal for controlling an activation of the corresponding chopper unit in cycle. The activations of the at least two chopper units are controlled by the controlling unit to be either initially offset by a phase shift or adjusted to have a phase shift after a predefined time duration, the phase shift indicating a time difference between rising edges or between falling edges of respective pulses of different signals. The chopper assembly according to the present disclosure effectively mitigates the negative impact to various components within the circuit. Moreover, by controlling the duty cycles of the control signals, loads of each of the resistors will be equal.Type: ApplicationFiled: May 30, 2018Publication date: September 27, 2018Inventor: Simo Poyhonen
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Patent number: 8432714Abstract: A method and an arrangement are disclosed for balancing load between parallel connected inverter modules, which inverter modules are arranged to supply a common load. The method can include providing similar switching instructions for parallel connected inverter modules, determining on the basis of phase currents of each parallel inverter module a first time period for each output phase of each inverter module for correcting current imbalance by advancing or delaying turn-on or turn-off time instants of switch components of the inverter modules, and advancing or delaying the turn-on or turn-off time instants of the switching instructions based on the first time period.Type: GrantFiled: January 27, 2010Date of Patent: April 30, 2013Assignee: ABB OyInventors: Jorma Keronen, Reijo Virtanen, Simo Pöyhönen
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Publication number: 20100188135Abstract: A method and an arrangement are disclosed for balancing load between parallel connected inverter modules, which inverter modules are arranged to supply a common load. The method can include providing similar switching instructions for parallel connected inverter modules, determining on the basis of phase currents of each parallel inverter module a first time period for each output phase of each inverter module for correcting current imbalance by advancing or delaying turn-on or turn-off time instants of switch components of the inverter modules, and advancing or delaying the turn-on or turn-off time instants of the switching instructions based on the first time period.Type: ApplicationFiled: January 27, 2010Publication date: July 29, 2010Applicant: ABB OYInventors: Jorma KERONEN, Reijo Virtanen, Simo Pöyhönen
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Patent number: 7741796Abstract: A method for controlling brake resistors and a brake chopper, the number of brake resistors being two or more and the brake resistors being connected in series with switches to be controlled, the series connection being connected between a positive and a negative rail of a DC voltage intermediate circuit, the method comprising the step of determining a magnitude for a voltage of the DC intermediate circuit; and determining a first voltage limit and a second voltage limit. The method further comprises the steps of switching brake resistors to the intermediate circuit in a periodically alternating manner, each switch being switched during a switching period and the on-period of each switch in a switching period being responsive to the magnitude of the voltage in the DC voltage intermediate circuit when the voltage is above the first predetermined limit and below the second predetermined limit.Type: GrantFiled: July 2, 2007Date of Patent: June 22, 2010Assignee: ABB OyInventors: Simo Pöyhönen, Mikko Hirvonen, Markku Talja
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Patent number: 7417408Abstract: A method and an arrangement for charging capacitors of a direct-voltage intermediate circuit of a frequency converter. The arrangement comprises a charging circuit (CCA) comprising a first diode (D1) and a second diode (D2) connected in series with the first diode (D1) and a current-limiting component (AA) connected in parallel with the series connection of the diodes (D1, D2), whereby said capacitors may be charged through a main switch (K1b, K2b, . . . , Knb) of the capacitor, the first diode (D1) and the current-limiting component (AA).Type: GrantFiled: June 6, 2006Date of Patent: August 26, 2008Assignee: ABB OyInventors: Simo Pöyhönen, Markku Talja
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Patent number: 7365622Abstract: This publication discloses a switching device combination for capacitive loads (3) connected to a direct voltage. The switching device combination includes an actual switch component (1) for connecting voltage to the capacitive load (3), a charging switch component (2) for connecting charging voltage to the capacitive load in the initial stage, which charging switch component is dimensioned for a lower current than the actual switch component (1), a controller component (4), by means of which the actual switch component (1) is controlled from an open state to a closed state and vice versa, with the aid of a mechanical lever (5), which is connected to a first shaft (6), and delay elements (11) for delaying the connection of the actual switch component (1), so that the closed charging switch component (2) will have time to charge the capacitive load (3) before the connection of the actual switch component (1).Type: GrantFiled: November 3, 2004Date of Patent: April 29, 2008Assignee: ABB OYInventors: Risto Kajan, Erkki Rajala, Mikael N{dot over (a)}hls, Simo Pöyhönen, Martti Varpela, Markku Talja
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Patent number: 7330095Abstract: A cooled multiphase choke assembly comprising a first coil (L1, L2, L3) for each phase (U, V, W) and a first cooling element (11), each first coil (L1, L2, L3) comprising several turns of winding, which define a substantially tubular tunnel inside each coil (L1, L2, L3). The first cooling element (11) extends in the tubular tunnel of each first coil (L1, L2, L3).Type: GrantFiled: June 7, 2005Date of Patent: February 12, 2008Assignee: ABB OyInventors: Markku Talja, Simo Poyhonen, Sami Vartiainen
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Publication number: 20080012513Abstract: A method for controlling brake resistors and a brake chopper, the number of brake resistors being two or more and the brake resistors being connected in series with switches to be controlled, the series connection being connected between a positive and a negative rail of a DC voltage intermediate circuit, the method comprising the step of determining a magnitude for a voltage of the DC intermediate circuit; and determining a first voltage limit and a second voltage limit. The method further comprises the steps of switching brake resistors to the intermediate circuit in a periodically alternating manner, each switch being switched during a switching period and the on-period of each switch in a switching period being responsive to the magnitude of the voltage in the DC voltage intermediate circuit when the voltage is above the first predetermined limit and below the second predetermined limit.Type: ApplicationFiled: July 2, 2007Publication date: January 17, 2008Applicant: ABB OYInventors: Simo Poyhonen, Mikko Hirvonen, Markku Talja
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Patent number: 7227325Abstract: A method and an arrangement for protecting a frequency converter in a system comprising a motor and a frequency converter supplying it via a bipolar or multipolar supply connection, the arrangement comprising first connecting means adapted to couple poles of the supply connection mutually substantially into short-circuit in response to a detection of a fault in the frequency converter.Type: GrantFiled: December 14, 2004Date of Patent: June 5, 2007Assignee: ABB OyInventors: Markku Talja, Simo Pöyhönen
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Publication number: 20070035909Abstract: This publication discloses a switching device combination for capacitive loads (3) connected to a direct voltage. The switching device combination includes an actual switch component (1) for connecting voltage to the capacitive load (3), a charging switch component (2) for connecting charging voltage to the capacitive load in the initial stage, which charging switch component is dimensioned for a lower current than the actual switch component (1), a controller component (4), by means of which the actual switch component (1) is controlled from an open state to a closed state and vice versa, with the aid of a mechanical lever (5), which is connected to a first shaft (6), and delay elements (11) for delaying the connection of the actual switch component (1), so that the closed charging switch component (2) will have time to charge the capacitive load (3) before the connection of the actual switch component (1).Type: ApplicationFiled: November 3, 2004Publication date: February 15, 2007Inventors: Risto Kajan, Erkki Rajala, Mikael Nahls, Simo Poyhonen, Martti Varpela, Markku Talja
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Publication number: 20060279259Abstract: A method and an arrangement for charging capacitors of a direct-voltage intermediate circuit of a frequency converter. The arrangement comprises a charging circuit (CCA) comprising a first diode (D1) and a second diode (D2) connected in series with the first diode (D1) and a current-limiting component (AA) connected in parallel with the series connection of the diodes (D1, D2), whereby said capacitors may be charged through a main switch (K1b, K2b, . . . , Knb) of the capacitor, the first diode (D1) and the current-limiting component (AA).Type: ApplicationFiled: June 6, 2006Publication date: December 14, 2006Applicant: ABB OYInventors: Simo Poyhonen, Markku Talja
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Patent number: 6999329Abstract: A method for operating parallel-connected inverter modules, wherein two or more inverter modules (A, B, C) are connected in parallel to feed the same load. Each inverter module has two or more output phases (u, v, w) for supplying electric power into a two or more phase load by determining the temperature (TAu, TAv, TAw, TBu, TBv, TBw, TCu, TCv, TCw) of each output phase (Au, Av, Aw, Bu, Bv, Bw, Cu, Cv, Cw) in each inverter module, comparing the temperatures of the output phases in each inverter module with the temperatures of the same output phase in other parallel-connected modules, and generating an alarm signal if the temperature of the output phase in an inverter module differs from the temperatures of the same output phase of the other inverter modules more than allowed by a predetermined limit.Type: GrantFiled: January 27, 2005Date of Patent: February 14, 2006Assignee: ABB OyInventors: Simo Pöyhönen, Osmo Pasuri
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Publication number: 20060013025Abstract: A method for operating parallel-connected inverter modules, wherein two or more inverter modules (A, B, C) are connected in parallel to feed the same load. Each inverter module has two or more output phases (u, v, w) for supplying electric power into a two or more phase load by determining the temperature (TAu, TAv, TAw, TBu, TBv, TBw, TCu, TCv, TCw) of each output phase (Au, Av, Aw, Bu, Bv, Bw, Cu, Cv, Cw) in each inverter module, comparing the temperatures of the output phases in each inverter module with the temperatures of the same output phase in other parallel-connected modules, and generating an alarm signal if the temperature of the output phase in an inverter module differs from the temperatures of the same output phase of the other inverter modules more than allowed by a predetermined limit.Type: ApplicationFiled: January 27, 2005Publication date: January 19, 2006Inventors: Simo Poyhonen, Osmo Pasuri
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Patent number: 6985371Abstract: A choke arrangement and a method in conjunction with an inverter, the phase output of the inverter being configured to be composed of two or more parallel branches, each of which comprises an upper (V1, V3, V5) and a lower (V2, V4, V6) power semiconductor component at the output, the upper one of which being coupled to a positive voltage of a direct voltage intermediate circuit and the lower to a negative voltage, the components being in series, the output of each branch being composed of a point between the components. The arrangement comprises branch-specific single-phase chokes (L1, L2, L3), the first ends of which chokes are arranged to be coupled to the outputs of the power semiconductor components and the second ends together to form the phase output of the inverter.Type: GrantFiled: February 18, 2005Date of Patent: January 10, 2006Assignee: ABB OyInventors: Markku Talja, Simo Pöyhönen, Juha Mikkola, Teemu Ronkainen, Marko Raatikainen
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Publication number: 20050280489Abstract: A cooled multiphase choke assembly comprising a first coil (L1, L2, L3) for each phase (U, V, W) and a first cooling element (11), each first coil (L1, L2, L3) comprising several turns of winding, which define a substantially tubular tunnel inside each coil (L1, L2, L3). The first cooling element (11) extends in the tubular tunnel of each first coil (L1, L2, L3).Type: ApplicationFiled: June 7, 2005Publication date: December 22, 2005Applicant: ABB OYInventors: Markku Talja, Simo Poyhonen, Sami Vartiainen
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Publication number: 20050141253Abstract: A choke arrangement and a method in conjunction with an inverter, the phase output of the inverter being configured to be composed of two or more parallel branches, each of which comprises an upper (V1, V3, V5) and a lower (V2, V4, V6) power semiconductor component at the output, the upper one of which being coupled to a positive voltage of a direct voltage intermediate circuit and the lower to a negative voltage, the components being in series, the output of each branch being composed of a point between the components. The arrangement comprises branch-specific single-phase chokes (L1, L2, L3), the first ends of which chokes are arranged to be coupled to the outputs of the power semiconductor components and the second ends together to form the phase output of the inverter.Type: ApplicationFiled: February 18, 2005Publication date: June 30, 2005Inventors: Markku Talja, Simo Poyhonen, Juha Mikkola, Teemu Ronkainen, Marko Raatikainen