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公开(公告)号：EP2382699A1
公开(公告)日：2011-11-02
申请号：EP09796381.3
申请日：2009-12-21
申请人： ABB Research Ltd.
IPC分类号： H02J3/36
摘要： The present disclosure is directed to a High Voltage Direct Current (HVDC) link with Voltage Source Converters VSC and interconnecting two power systems. A model-predictive control with a receding horizon policy is employed for controlling the outer loop of a two-loop or two-layer control scheme or setup for the HVDC link. The two-loop control scheme takes advantage of the difference in speed of the dynamics of the various system variables of the HVDC link and the interconnected power systems. Model-based prediction representative of the interconnected power systems' behavior enables comparison of the future effect of different control inputs applied within the control scheme, while taking into account any physical, safety and operating constraints. It is valid for a complete operating range, e.g., it avoids performance degradation when moving away from the nominal operating point of the control scheme for a HVDC link.
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公开(公告)号：EP2732547B1
公开(公告)日：2016-10-26
申请号：EP12732630.4
申请日：2012-06-29
申请人： ABB Research Ltd.
CPC分类号： H02M1/12 , G05B19/0421 , H02M7/487 , H02M7/5395 , H02M2007/53876 , H02P21/30 , H02P23/30 , H02P27/06
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公开(公告)号：EP2732547A1
公开(公告)日：2014-05-21
申请号：EP12732630.4
申请日：2012-06-29
申请人： ABB Research Ltd.
CPC分类号： H02M1/12 , G05B19/0421 , H02M7/487 , H02M7/5395 , H02M2007/53876 , H02P21/30 , H02P23/30 , H02P27/06
摘要： In a method based on the MPDTC algorithm for controlling an inverter of an electrical system, the harmonics and resonances in the inverter are damped by extracting frequency information from predicted data of the MPDTC algorithm and by damping harmonic distortion of the electrical system by reintroducing the extracted frequency information into a control loop of the inverter.
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公开(公告)号：EP2382699B1
公开(公告)日：2019-04-17
申请号：EP09796381.3
申请日：2009-12-21
申请人： ABB Research Ltd.
IPC分类号： H02J3/36
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公开(公告)号：EP2529475A2
公开(公告)日：2012-12-05
申请号：EP10796066.8
申请日：2010-12-22
申请人： ABB Research Ltd.
摘要： A method for predicting pulse width modulated switching sequences for a multi-phase multi-level converter is presented. With a first predicted switching sequence, due to multi-phase redundancies, equivalent switching sequences are determined. From the equivalent switching sequences one switching sequence optimal with respect to a predefined optimization goal is selected. The selected switching sequence is used to switch the converter.
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公开(公告)号：EP2223426B1
公开(公告)日：2011-08-31
申请号：EP08865335.7
申请日：2008-11-12
申请人： ABB Research Ltd.
IPC分类号： H02P21/00
摘要： The invention relates to a method for operating a rotating electric machine, wherein the rotating electric machine is connected by phases to a converter circuit having a direct-current circuit for switching at least two voltage levels, and the phases of the converter circuit are connected to the direct-current circuit according to a selected switch state combination of switch states of power semi-conductor switches of the converter circuit. In order to reduce the switching frequency of the power semi-conductor switches, a prediction is made on the further behavior of the overall system, and subsequently the optimum switching state combination is selected based on the preceding selected switching state combination and with regard to the number of transitions from the preceding selected switching state combination to the selected switching state combination and with regard to the respective predetermined value range for the torque of the rotating electric machine, for the magnetic stator flow of the rotating electric machine, and for the potential on the partial connection. The steps are carried out by means of a digital signal processor, and by means of a field programmable gate array (FPGA).
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公开(公告)号：EP2223426A1
公开(公告)日：2010-09-01
申请号：EP08865335.7
申请日：2008-11-12
申请人： ABB Research Ltd.
IPC分类号： H02P21/00
摘要： The invention relates to a method for operating a rotating electric machine, wherein the rotating electric machine is connected by phases to a converter circuit having a direct-current circuit for switching at least two voltage levels, and the phases of the converter circuit are connected to the direct-current circuit according to a selected switch state combination of switch states of power semi-conductor switches of the converter circuit. In order to reduce the switching frequency of the power semi-conductor switches, a prediction is made on the further behavior of the overall system, and subsequently the optimum switching state combination is selected based on the preceding selected switching state combination and with regard to the number of transitions from the preceding selected switching state combination to the selected switching state combination and with regard to the respective predetermined value range for the torque of the rotating electric machine, for the magnetic stator flow of the rotating electric machine, and for the potential on the partial connection. The steps are carried out by means of a digital signal processor, and by means of a field programmable gate array (FPGA).
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