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公开(公告)号：DE60144367D1
公开(公告)日：2011-05-19
申请号：DE60144367
申请日：2001-05-21
Applicant: ABB RESEARCH LTD
Inventor： REHTANZ CHRISTIAN , BUERGLER VALENTIN , BERTSCH JOACHIM
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公开(公告)号：SI1489715T1
公开(公告)日：2009-10-31
申请号：SI200331621
申请日：2003-06-21
Applicant: ABB RESEARCH LTD
Inventor： ZIMA MAREK , LARSSON MATS , BERTSCH JOACHIM
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公开(公告)号：CA2446876A1
公开(公告)日：2004-05-01
申请号：CA2446876
申请日：2003-10-27
Applicant: ABB RESEARCH LTD
Inventor： BERTSCH JOACHIM , NAEDELE MARTIN , REHTANZ CHRISTIAN
Abstract: -25- For the control of an electric power transmission network, where local protection functions are implemented by a plurality of local protection devices (3,3a,3b,3b',3c) located at a plurality of locations throughout the network, the following steps are executed .cndot. measuring phasor data for voltages and currents at a plurality of locations (A, B) of the network, .cndot. transmitting said phasor data to a central processing device (2), .cndot. emulating, in the central processing device (2), protection function s that are implemented in the local protection devices (3,3a,3b,3b',3c), and .cndot. executing, in accordance with a given redundancy strategy, control commands that are issued redundantly by the local protection devices (3,3a,3b,3b',3c) and by the central processing device (2). In a preferred variant of the invention, values of predetermined paramete rs that are used in the protection function, in particular protection threshold values, are adapted to measured values.
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公开(公告)号：NO20022349L
公开(公告)日：2002-11-22
申请号：NO20022349
申请日：2002-05-16
Applicant: ABB RESEARCH LTD
Inventor： REHTANZ CHRISTIAN , BUERGLER VALENTIN , BERTSCH JOACHIM
Abstract: A method, device and computer program product for the prediction of the stability of an electric power network, where the method is executed after a fault or contingency has occurred, and comprises the steps of a) during a time interval in which the network is in a transient condition, determining for at least one load connected to the electric power network, at least one parameter describing an estimated steady state behaviour of the load, b) executing a load flow calculation for the electric power network using the least one parameter describing the estimated steady state behaviour the at least one load, c) determining, if the load flow calculation indicates stability has a solution, that a future stability of the electrical power network exists, or, if the load flow calculation indicates instability does not have a solution, that a future stability of the electrical power network does not exist.
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公开(公告)号：NO20022349A
公开(公告)日：2002-11-22
申请号：NO20022349
申请日：2002-05-16
Applicant: ABB RESEARCH LTD
Inventor： REHTANZ CHRISTIAN , BUERGLER VALENTIN , BERTSCH JOACHIM
CPC classification number: H02J3/24 , H02J2003/007 , Y02E60/728 , Y02E60/76 , Y04S10/265 , Y04S40/22
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Patent Agency Ranking
公开(公告)号：CA2446876C
公开(公告)日：2012-06-19
申请号：CA2446876
申请日：2003-10-27
Applicant: ABB RESEARCH LTD
Inventor： REHTANZ CHRISTIAN , NAEDELE MARTIN , BERTSCH JOACHIM
Abstract: -25- For the control of an electric power transmission network, where local protection functions are implemented by a plurality of local protection devices (3,3a,3b,3b',3c) located at a plurality of locations throughout the network, the following steps are executed .cndot. measuring phasor data for voltages and currents at a plurality of locations (A, B) of the network, .cndot. transmitting said phasor data to a central processing device (2), .cndot. emulating, in the central processing device (2), protection functions that are implemented in the local protection devices (3,3a,3b,3b',3c), and .cndot. executing, in accordance with a given redundancy strategy, control commands that are issued redundantly by the local protection devices (3,3a,3b,3b',3c) and by the central processing device (2). In a preferred variant of the invention, values of predetermined parameters that are used in the protection function, in particular protection threshold values, are adapted to measured values.
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公开(公告)号：ES2364451T3
公开(公告)日：2011-09-02
申请号：ES01112354
申请日：2001-05-21
Applicant: ABB RESEARCH LTD
Inventor： REHTANZ CHRISTIAN , BUERGLER VALENTIN , BERTSCH JOACHIM
Abstract: Un método para la predicción de la estabilidad de una red eléctrica de potencia, caracterizado por que el método comprende las etapas de i) determinación (32), para una carga conectada a la red eléctrica de potencia a través de una conexión de cargas, de los valores de potencia y tensión (U0, P0, U(t0-), PL(t0-)) previamente a la contingencia así como, durante un intervalo de tiempo después de la contingencia en el que la red está en una condición transitoria, de al menos un par de valores de tensión y potencia (U(t0+), PL(t0+), PL(t), P(tn), U, U(tn)) en la conexión de la carga, ii) determinación (33), para la carga y a partir de dichos valores de tensión y potencia, de al menos un parámetro (αs, βs, PL(∞)) que describe una relación de estado estable estimada (ecuación 3) entre la tensión y el flujo de potencia o el flujo de potencia en estado estable estimado (PL(∞)) alcanzado después de una fase transitoria, iii) ejecución de un cálculo del flujo de cargas (34) para la determinación de un equilibrio en estado estable de la red eléctrica de potencia, usando el al menos un parámetro, iv) determinación (35), si el cálculo del flujo de cargas tiene una solución, que existe una estabilidad futura de la red eléctrica de potencia o, si el cálculo del flujo de cargas no tiene una solución, que no existe una estabilidad futura de la red eléctrica de potencia.
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公开(公告)号：AT504969T
公开(公告)日：2011-04-15
申请号：AT01112354
申请日：2001-05-21
Applicant: ABB RESEARCH LTD
Inventor： REHTANZ CHRISTIAN , BUERGLER VALENTIN , BERTSCH JOACHIM
Abstract: A method, device and computer program product for the prediction of the stability of an electric power network, where the method is executed after a fault or contingency has occurred, and comprises the steps of a) during a time interval in which the network is in a transient condition, determining for at least one load connected to the electric power network, at least one parameter describing an estimated steady state behaviour of the load, b) executing a load flow calculation for the electric power network using the least one parameter describing the estimated steady state behaviour the at least one load, c) determining, if the load flow calculation indicates stability has a solution, that a future stability of the electrical power network exists, or, if the load flow calculation indicates instability does not have a solution, that a future stability of the electrical power network does not exist.
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公开(公告)号：DE60327058D1
公开(公告)日：2009-05-20
申请号：DE60327058
申请日：2003-06-21
Applicant: ABB RESEARCH LTD
Inventor： ZIMA MAREK , LARSSON MATS , BERTSCH JOACHIM
Abstract: The present invention is concerned with a method for real-time emergency control of power transmission networks, based on a modification of the model predictive control (MPC) approach. Following the detection of a contingency at time tc, only one nominal trajectory xnom is approximated, together with its corresponding trajectory sensitivities for evaluating the effect of various key parameters or potential control actions. An optimum input control is finally identified via the solution of a cost function including e.g. a punishment for excessive load shedding. The process is started only if the nominal trajectory does not remain within acceptable trajectory limits.
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公开(公告)号：NO325888B1
公开(公告)日：2008-08-11
申请号：NO20022349
申请日：2002-05-16
Applicant: ABB RESEARCH LTD
Inventor： REHTANZ CHRISTIAN , BUERGLER VALENTIN , BERTSCH JOACHIM
Abstract: A method, device and computer program product for the prediction of the stability of an electric power network, where the method is executed after a fault or contingency has occurred, and comprises the steps of a) during a time interval in which the network is in a transient condition, determining for at least one load connected to the electric power network, at least one parameter describing an estimated steady state behaviour of the load, b) executing a load flow calculation for the electric power network using the least one parameter describing the estimated steady state behaviour the at least one load, c) determining, if the load flow calculation indicates stability has a solution, that a future stability of the electrical power network exists, or, if the load flow calculation indicates instability does not have a solution, that a future stability of the electrical power network does not exist.
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