METHOD FOR MONITORING CHANGE IN CAPACITANCE IN ELECTRIC SYSTEM AND ELECTRIC SYSTEM
    1.
    发明公开
    METHOD FOR MONITORING CHANGE IN CAPACITANCE IN ELECTRIC SYSTEM AND ELECTRIC SYSTEM 审中-公开
    监测电力系统和电力系统电容变化的方法

    公开(公告)号:EP3242391A1

    公开(公告)日:2017-11-08

    申请号:EP16168003.8

    申请日:2016-05-03

    Abstract: A method for monitoring a change in a capacitance in an electric system, and an electric system comprising a multilevel inverter (10) and at least two capacitances (C1, C2) connected in series between a negative DC pole (dc-) and a positive DC pole (dc+) of the inverter, wherein the connection point between the capacitances is connected to one of the at least one middle DC pole (NP) of the inverter, and control means (11) configured to provide by the inverter an AC current component to one of the at least one middle DC pole (NP) of the inverter, which AC current component is distributed between the two capacitances connected to the middle DC pole, and monitor resulting AC voltage components in the two capacitances, and determine on the basis of a difference between the monitored AC voltage components a change in at least one of the two capacitances.

    Abstract translation: 一种用于监视电力系统中的电容变化的方法,以及包括串联连接在负极DC极(dc-)和正极之间的多电平逆变器(10)和至少两个电容(C1,C2)的电气系统 其中,所述电容器之间的连接点连接到所述逆变器的所述至少一个中间DC电极(NP)中的一个;以及控制装置(11),其被配置为通过所述逆变器向所述逆变器提供AC电流 组件连接到逆变器的至少一个中间直流电极(NP)中的一个,该交流电流分量分布在连接到中间直流电极的两个电容之间,并且监测两个电容中产生的交流电压分量, 监测的AC电压分量之间的差异的基础是两个电容中的至少一个的变化。

    METHOD AND APPARATUS FOR THERMAL BALANCING OF POWER SEMICONDUCTOR COMPONENTS IN INVERTER
    2.
    发明公开
    METHOD AND APPARATUS FOR THERMAL BALANCING OF POWER SEMICONDUCTOR COMPONENTS IN INVERTER 审中-公开
    逆变器中功率半导体元件热平衡的方法和装置

    公开(公告)号:EP3242384A1

    公开(公告)日:2017-11-08

    申请号:EP16168333.9

    申请日:2016-05-04

    CPC classification number: H02M7/5387 H02M1/32 H02M2001/327 H02M2007/53876

    Abstract: The present disclosure describes a method and an apparatus for controlling a thermal balance of power semiconductor components in an inverter leg of a multi-phase inverter. The multi-phase inverter is controlled with a modulation scheme, where a switching sequence comprises at least alternative states, wherein output current flows through one power semiconductor device of the inverter leg when one alternative state is active and through another power semiconductor device of the inverter leg when the other alternative state is active. A ratio between durations of the at least two alternative states is controlled in order to balance temperature changes of the devices.

    Abstract translation: 本公开描述了用于控制多相逆变器的逆变器支路中的功率半导体组件的热平衡的方法和设备。 利用调制方案来控制多相逆变器,其中,开关序列至少包括替代状态,其中当一个替代状态为有效时,输出电流流过逆变器支路的一个功率半导体器件,并且通过逆变器的另一个功率半导体器件 当另一个替代状态是活动的时候。 控制至少两个可选状态的持续时间之间的比例以平衡装置的温度变化。

    METHOD FOR MONITORING CHANGE IN CAPACITANCE OF AC FILTER IN ELECTRIC SYSTEM AND ELECTRIC SYSTEM
    3.
    发明公开
    METHOD FOR MONITORING CHANGE IN CAPACITANCE OF AC FILTER IN ELECTRIC SYSTEM AND ELECTRIC SYSTEM 审中-公开
    电力系统和电力系统中交流滤波器电容变化监测方法

    公开(公告)号:EP3242383A1

    公开(公告)日:2017-11-08

    申请号:EP16167998.0

    申请日:2016-05-03

    CPC classification number: H02M1/126 G01R27/2605 G01R31/28 G01R31/42 H02M7/48

    Abstract: A method for monitoring a change in a capacitance of an AC filter in an electric system, and an electric system comprising a converter (10), an AC filter (20) comprising at least one capacitance and being connected to the AC output of the converter, switching means (K) connected to an output of the AC filter, and control means (11) configured to control the switching means to open circuit the output of the AC filter, supply by the converter (10) an AC voltage with a predetermined magnitude and a predetermined frequency from the AC output of the converter to the AC filter, monitor a current or currents flowing through the AC output of the converter as a result of the AC voltage supplied to the AC filter, and determine on the basis of the monitored current or currents a change in the at least one capacitance of the AC filter.

    Abstract translation: 一种用于监测电力系统中的交流滤波器的电容变化的方法,以及一种电气系统,该电气系统包括变换器(10),包括至少一个电容的交流滤波器(20)并且连接到变换器的交流输出 ,连接到AC滤波器的输出的开关装置(K),以及配置成控制开关装置以使AC滤波器的输出开路的变换器(10)提供具有预定电压的AC电压的控制装置(11) 振幅和预定频率从转换器的交流输出到交流滤波器,监视流过交流转换器的交流输出的电流或电流,作为交流电压供给交流滤波器的结果,并基于 监视交流滤波器的至少一个电容中的电流或电流的变化。

    DETERMINING OF FILTER CAPACITANCES
    4.
    发明公开
    DETERMINING OF FILTER CAPACITANCES 审中-公开
    滤波电容的确定

    公开(公告)号:EP3232217A1

    公开(公告)日:2017-10-18

    申请号:EP16165491.8

    申请日:2016-04-15

    CPC classification number: G01R31/028 G01R31/42 H02M1/126

    Abstract: A method of determining condition of filter capacitance of a filter connected to the phases of a converter and adapted to be connected to an alternating voltage source (12) and a converter. The converter comprising parallel converter legs having upper (T1, T2, T3) and lower semiconductor switches (T4, T5, T6) with antiparallel connected diodes (D1, D2, D3, D4, D5, D6) connected in series between positive and negative buses (DC+, DC-), wherein the points between the upper and lower semiconductor switches form the phases (a, b, c) of the converter. The filter comprising inductive components (L c,a , L c,b , L c,c ) and capacitors (C ab , C bc , C ca ), the inductive components being connected to the phases of the converter and the capacitors connecting the other ends of the inductive components. The method comprises charging the capacitors of the filter, controlling the semiconductor switches of the converter for short circuiting the capacitors through the inductive components while the filter is disconnected from the alternating voltage source, measuring a current or a voltage in the circuit, determining from the oscillation of the measured current or voltage the condition of the capacitors of the filter.

    Abstract translation: 一种确定连接到转换器的相并且适于连接到交流电压源(12)和转换器的滤波器的滤波器电容的条件的方法。 该转换器包括具有上(T1,T2,T3)和具有反并联连接的二极管(D1,D2,D3,D4,D5,D6)的下半导体开关(T4,T5,T6)的并联转换器支路, 总线(DC +,DC-),其中上部和下部半导体开关之间的点形成转换器的相位(a,b,c)。 所述滤波器包括电感性组件(Lc,a,Lc,b,Lc,c)和电容器(Cab,Cbc,Cca),所述电感性组件连接到所述转换器的相和连接所述电感性组件的另一端的电容器 。 该方法包括对滤波器的电容器进行充电,控制变换器的半导体开关,以在滤波器从交流电压源断开的同时使电容器短路通过电感部件,测量电路中的电流或电压,根据 测量的电流或电压的振荡是滤波器电容器的状况。

    MODULATION METHOD FOR CONTROLLING AT LEAST TWO PARALLEL-CONNECTED, MULTI-PHASE POWER CONVERTERS
    6.
    发明公开
    MODULATION METHOD FOR CONTROLLING AT LEAST TWO PARALLEL-CONNECTED, MULTI-PHASE POWER CONVERTERS 审中-公开
    调制解调器解决方案ZWEI并行GESCHALTETEN MEHRPHASEN-STROMWANDLERN

    公开(公告)号:EP3136582A1

    公开(公告)日:2017-03-01

    申请号:EP15182139.4

    申请日:2015-08-24

    CPC classification number: H02M5/04 H02M7/493 H02M7/5395 H02M2007/53876

    Abstract: The present disclosure describes a modulation method for controlling at least two parallel-connected, multi-phase power converters. The method comprises generating synchronized switching sequences for the power converters on the basis of a common modulation reference, wherein each synchronized switching sequence comprises a first half sequence followed by a second half sequence, and wherein, for at least one of the power converters, the first half sequence is a rising-edge half sequence rising-edge half sequence and the second half sequence is a falling-edge half sequence, and, for at least one other of the power converters, the first half sequence is a falling-edge half sequence and the second half sequence is a rising-edge half sequence.

    Abstract translation: 本公开描述了一种用于控制至少两个并联的多相功率转换器的调制方法。 该方法包括基于公共调制参考产生用于功率转换器的同步切换序列,其中每个同步切换序列包括第一半序列,随后是第二半序列,并且其中,对于至少一个功率转换器, 前半序列是上升沿半序列上升沿半序列,第二半序列是下降沿半序列,并且对于至少另一个功率转换器,前半个序列是下降沿半帧 序列,第二半序列是上升沿半序列。

    ARRANGEMENT FOR COOLING A CLOSED CABINET
    7.
    发明公开
    ARRANGEMENT FOR COOLING A CLOSED CABINET 有权
    ANORDNUNG ZURKÜHLUNGEINES GESCHLOSSENEN SCHRANKS

    公开(公告)号:EP3136033A1

    公开(公告)日:2017-03-01

    申请号:EP15182471.1

    申请日:2015-08-26

    Abstract: An arrangement for cooling a closed, sealed cabinet (1), comprising a thermosiphon heat exchanger (2) disposed inside the cabinet (1) and having an evaporator (3) and a condenser (4) for circulating a working fluid between the evaporator (3) and the condenser (4) in a closed loop, wherein the working fluid evaporated in the evaporator (3) by heat flows to the condenser (4) for cooling and the condensed working fluid flows back to the evaporator (3). The evaporator (3) is exposed to hot air flow generated inside the cabinet (1), and a heat transfer element (5) is attached to the condenser (3) in a sealed manner through a cabinet wall (6) for transferring heat to the outside of the cabinet (1).

    Abstract translation: 一种用于冷却封闭的密封柜(1)的装置,包括设置在机壳(1)内的热虹吸热交换器(2),并具有蒸发器(3)和冷凝器(4),用于使工作流体在蒸发器 3)和冷凝器(4)处于闭合回路中,其中通过热量在蒸发器(3)中蒸发的工作流体流到冷凝器(4)以进行冷却,并且冷凝的工作流体回流到蒸发器(3)。 蒸发器(3)暴露于在机柜(1)内部产生的热空气流中,并且传热元件(5)以密封的方式通过柜壁(6)附接到冷凝器(3),用于将热量传递到 柜体外(1)。

    Three-level converter and method for controlling three-level converter
    8.
    发明公开
    Three-level converter and method for controlling three-level converter 审中-公开
    三电平逆变器及其控制方法的三电平逆变器

    公开(公告)号:EP3002867A9

    公开(公告)日:2016-06-01

    申请号:EP14187275.4

    申请日:2014-10-01

    Inventor: Viitanen, Tero

    CPC classification number: H02M5/4585 H02M7/487

    Abstract: A three-level converter and a method for controlling a three-level converter, wherein the third (S31, S32, S33), the fourth (S41, S42, S43) and the fifth (S51, S52, S53) controllable semiconductor switch of a switching branch having, out of all the switching branches, the most positive voltage in its alternating current pole (AC1, AC2, AC3) is controlled to be non-conductive for the whole period of time when the switching branch in question has the most positive voltage in its alternating current pole, and the first (S11, S12, S13), the second (S21, S22, S23) and the sixth (S61, S62, S63) controllable semiconductor switch of a switching branch having, out of all the switching branches, the most negative voltage in its alternating current pole is controlled to be non-conductive for the whole period of time when the switching branch in question has the most negative voltage in its alternating current pole.

    Three-level converter and method for controlling three-level converter
    9.
    发明公开
    Three-level converter and method for controlling three-level converter 审中-公开
    三电平逆变器及其控制方法的三电平逆变器

    公开(公告)号:EP3002867A1

    公开(公告)日:2016-04-06

    申请号:EP14187275.4

    申请日:2014-10-01

    Inventor: Viitanen, Tero

    CPC classification number: H02M5/4585 H02M7/487

    Abstract: A three-level converter and a method for controlling a three-level converter, wherein the third (S31, S32, S33), the fourth (S41, S42, S43) and the fifth (S51, S52, S53) controllable semiconductor switch of a switching branch having, out of all the switching branches, the most positive voltage in its alternating current pole (AC1, AC2, AC3) is controlled to be non-conductive for the whole period of time when the switching branch in question has the most positive voltage in its alternating current pole, and the first (S11, S12, S13), the second (S21, S22, S23) and the sixth (S61, S62, S63) controllable semiconductor switch of a switching branch having, out of all the switching branches, the most negative voltage in its alternating current pole is controlled to be non-conductive for the whole period of time when the switching branch in question has the most negative voltage in its alternating current pole.

    Abstract translation: 三电平转换器,以及用于控制三电平转换器,worin第三(S31,S32,S33),第四(S41,S42,S43)和第五(S51,S52,S53)的可控半导体开关的方法 开关具有,出所有的开关支路的分支,在其交流电流极(AC1,AC2,AC3)中最正的电压被控制为其它非导电在整个时期的时间。当所讨论的开关支路具有最 在其交流极的正电压,并且所述第一(S11,S12,S13),第二(S21,S22,S23)和第六(S61,S62,S63),其具有,出于所有的开关支路的可控半导体开关 的开关支路,在其交流电流极的最负电压被控制为其它非导电的时间。当所讨论的开关支路在其交流电流极的最负电压的整个周期。

Patent Agency Ranking