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    • 2. 发明授权
    • Reactive-power control apparatus and reactive-power compensator using the same
    • 无功功率控制装置和无功功率补偿器
    • US07688043B2
    • 2010-03-30
    • US11819038
    • 2007-06-25
    • Naohiro TokiMasatoshi TakedaYoshiyuki KonoKoji Temma
    • Naohiro TokiMasatoshi TakedaYoshiyuki KonoKoji Temma
    • G05F1/70
    • H02J3/1864Y02E40/12
    • In a conventional reactive-power compensator using a static reactive-power compensator (SVC), there are many cases in which the SVC is operating in a state in which it generates an amount of reactive power equivalent to a large part of its capacity. When an unforeseen large voltage fluctuation occurs in this state, the SVC can not sufficiently generate the amount of reactive power required to mitigate the voltage fluctuation. In some cases, such a voltage fluctuation can not be brought under control. To address this situation, a reactive-power compensator utilizes a reactive-power control apparatus that includes a comparison voltage generator for generating, for a control target voltage and to mitigate voltage fluctuation, a comparison voltage restricted within predetermined limits and obeying a predetermined time-lag characteristic. A differential voltage generator generates a differential voltage that is the difference between the comparison voltage and the control target voltage. A reactive-power control device controls, in response to the differential voltage, control-target reactive power generated by an SVC, at a time-related characteristic faster than the time-lag characteristic for the comparison voltage.
    • 在使用静态无功功率补偿器(SVC)的常规无功功率补偿器中,在许多情况下,SVC在其产生等于其容量的大部分的无功功率的状态下工作。 当在该状态下发生不可预见的大电压波动时,SVC不能充分产生减轻电压波动所需的无功功率量。 在某些情况下,这种电压波动不能受到控制。 为了解决这种情况,无功功率补偿器利用无功功率控制装置,该无功功率控制装置包括比较电压发生器,用于产生用于控制目标电压并减轻电压波动的限制在预定限度内的比较电压并且遵循预定的时间 - 滞后特征。 差分电压发生器产生作为比较电压和控制目标电压之差的差分电压。 无功功率控制装置响应于差分电压控制由SVC产生的控制目标无功功率,该时间相关特性比比较电压的时滞特性快。
    • 3. 发明申请
    • Reactive-power control apparatus and reactive-power compensator using the same
    • 无功功率控制装置和无功功率补偿器
    • US20080157728A1
    • 2008-07-03
    • US11819038
    • 2007-06-25
    • Naohiro TokiMasatoshi TakedaYoshiyuki KonoKoji Temma
    • Naohiro TokiMasatoshi TakedaYoshiyuki KonoKoji Temma
    • H02J3/18
    • H02J3/1864Y02E40/12
    • In a conventional reactive-power compensator using a static reactive-power compensator (SVC), there are many cases in which the SVC is operating in a state in which it generates an amount of reactive power equivalent to a large part of its capacity. When an unforeseen large voltage fluctuation occurs in this state, the SVC can not sufficiently generate the amount of reactive power required to mitigate the voltage fluctuation. In some cases, such a voltage fluctuation can not be brought under control. To address this situation, a reactive-power compensator utilizes a reactive-power control apparatus that includes a comparison voltage generator for generating, for a control target voltage and to mitigate voltage fluctuation, a comparison voltage restricted within predetermined limits and obeying a predetermined time-lag characteristic. A differential voltage generator generates a differential voltage that is the difference between the comparison voltage and the control target voltage. A reactive-power control device controls, in response to the differential voltage, control-target reactive power generated by an SVC, at a time-related characteristic faster than the time-lag characteristic for the comparison voltage.
    • 在使用静态无功功率补偿器(SVC)的常规无功功率补偿器中,在许多情况下,SVC在其产生等于其容量的大部分的无功功率的状态下工作。 当在该状态下发生不可预见的大电压波动时,SVC不能充分产生减轻电压波动所需的无功功率量。 在某些情况下,这种电压波动不能受到控制。 为了解决这种情况,无功功率补偿器利用无功功率控制装置,该无功功率控制装置包括比较电压发生器,用于产生用于控制目标电压并减轻电压波动的限制在预定限度内的比较电压并且遵循预定的时间 - 滞后特征。 差分电压发生器产生作为比较电压和控制目标电压之差的差分电压。 无功功率控制装置响应于差分电压控制由SVC产生的控制目标无功功率,该时间相关特性比比较电压的时滞特性快。
    • 5. 发明授权
    • Control system for static VAR compensator
    • 静态VAR补偿器控制系统
    • US07638986B2
    • 2009-12-29
    • US11756681
    • 2007-06-01
    • Masatoshi TakedaKoji Temma
    • Masatoshi TakedaKoji Temma
    • G05F1/70H02M7/04H02J3/24
    • G05F1/70H02J3/1864Y02E40/12
    • In a control system for a static var compensator that performs phase control of a current of a reactor for each phase by a thyristor and thus controls reactive power, a detecting unit that detects a tertiary harmonic current flowing through each phase of the static var compensator is provided, and on the basis of the tertiary harmonic current flowing through each phase detected by the detecting unit, the thyristor of each phase is controlled so that the quantity of generated tertiary harmonic current of each phase becomes equal, and therefore an outflow of the tertiary harmonic current toward a system can be restrained by an inexpensive method.
    • 在静态无功补偿器的控制系统中,通过晶闸管对每相的电抗器的电流进行相位控制,从而控制无功功率,检测流过静态无功补偿器的各相的三次谐波电流的检测单元是 基于由检测单元检测到的流过每相的三次谐波电流,控制各相的晶闸管,使得各相的三次谐波电流的量相等,因此第三次谐波的流出 可以通过廉价的方法来限制朝向系统的谐波电流。
    • 6. 发明申请
    • Control System for Static VAR Compensator
    • 静态VAR补偿器控制系统
    • US20080001581A1
    • 2008-01-03
    • US11756681
    • 2007-06-01
    • Masatoshi TakedaKoji Temma
    • Masatoshi TakedaKoji Temma
    • G05F1/70
    • G05F1/70H02J3/1864Y02E40/12
    • In a control system for a static var compensator that performs phase control of a current of a reactor for each phase by a thyristor and thus controls reactive power, a detecting unit that detects a tertiary harmonic current flowing through each phase of the static var compensator is provided, and on the basis of the tertiary harmonic current flowing through each phase detected by the detecting unit, the thyristor of each phase is controlled so that the quantity of generated tertiary harmonic current of each phase becomes equal, and therefore an outflow of the tertiary harmonic current toward a system can be restrained by an inexpensive method.
    • 在静态无功补偿器的控制系统中,通过晶闸管对每相的电抗器的电流进行相位控制,从而控制无功功率,检测流过静态无功补偿器的各相的三次谐波电流的检测单元是 基于由检测单元检测到的流过每相的三次谐波电流,控制各相的晶闸管,使得各相的三次谐波电流的量相等,因此第三次谐波的流出 可以通过廉价的方法来限制朝向系统的谐波电流。
    • 7. 发明授权
    • Reactive power compensator and control device therefor
    • 无功补偿器及其控制装置
    • US07683589B2
    • 2010-03-23
    • US11984755
    • 2007-11-21
    • Koji TemmaYoshiyuki Kono
    • Koji TemmaYoshiyuki Kono
    • G05F1/70
    • G05F1/70
    • A reactive power compensator includes a control block with a limiter and a primary delay-control block with a limiter that set, based on an output of a voltage sensor, reactive power produced by an SVC to a predetermined value. A reactive power controller sets the reactive power produced by the SVC to the predetermined value controls a voltage of a second bus to fall within a predetermined range. This is performed by adjusting an initial value of the reactive power that is output by the SVC, when a bus voltage of the second bus laid at a position apart from a first bus that is laid at a position near the SVC is deviated from a predetermined fixed range.
    • 无功功率补偿器包括具有限制器的控制块和具有限幅器的主要延迟控制块,其基于电压传感器的输出将由SVC产生的无功功率设置为预定值。 无功功率控制器将由SVC产生的无功功率设定为预定值来控制第二总线的电压落在预定范围内。 这是通过调整由SVC输出的无功功率的初始值来进行的,当布置在距放置在SVC附近的位置的第一总线的位置处的第二总线的总线电压偏离预定的 固定范围。
    • 8. 发明申请
    • Reactive power compensator and control device therefor
    • 无功补偿器及其控制装置
    • US20090001942A1
    • 2009-01-01
    • US11984755
    • 2007-11-21
    • Koji TemmaYoshiyuki Kono
    • Koji TemmaYoshiyuki Kono
    • G05F1/70
    • G05F1/70
    • A reactive power compensator includes a control block with a limiter and a primary delay-control block with a limiter that set, based on an output of a voltage sensor, reactive power produced by an SVC to a predetermined value. A reactive power controller sets the reactive power produced by the SVC to the predetermined value controls a voltage of a second bus to fall within a predetermined range. This is performed by adjusting an initial value of the reactive power that is output by the SVC, when a bus voltage of the second bus laid at a position apart from a first bus that is laid at a position near the SVC is deviated from a predetermined fixed range.
    • 无功功率补偿器包括具有限制器的控制块和具有限幅器的主要延迟控制块,其基于电压传感器的输出将由SVC产生的无功功率设置为预定值。 无功功率控制器将由SVC产生的无功功率设定为预定值来控制第二总线的电压落在预定范围内。 这是通过调整由SVC输出的无功功率的初始值来进行的,当布置在距放置在SVC附近的位置的第一总线的位置处的第二总线的总线电压偏离预定的 固定范围。
    • 9. 发明授权
    • Reactive power compensator
    • 无功补偿器
    • US06680602B2
    • 2004-01-20
    • US10199133
    • 2002-07-22
    • Isao IyodaKoji TemmaKatsuhiko MatsunoYoshinao Matsushita
    • Isao IyodaKoji TemmaKatsuhiko MatsunoYoshinao Matsushita
    • G05F170
    • H02J3/1878Y02E40/30
    • When a voltage of a system is stabilized by connecting the system with two types of voltage regulators, i.e., a slow-response tap-changing transformer and a quick-response reactive power regulator, it is not always clear how characteristics of the reactive power regulator should be regulated. Moreover, the regulation takes much time. In a range where voltage fluctuation of the system is small and a tap-changing transformer can cope with the change, gain of a reactive power regulator is set to be low, and its output is restrained. In a range where voltage fluctuation of the system is large and the voltage deviates from a width of a dead zone of the tap-changing transformer, gain of the reactive power regulator is set to be high, and regulating current is fully utilized.
    • 当系统通过将系统与两种类型的电压调节器(即慢响应分接变换变压器和快速响应无功功率调节器)连接来稳定系统的电压时,并不总是清楚无功功率调节器的特性 应该受到管制。 此外,监管需要很多时间。 在系统的电压波动小,分接变压变压器可以应付变化的范围内,无功功率调节器的增益被设定为低,其输出被抑制。 在系统的电压波动大并且电压偏离分接变换变压器的死区宽度的范围内,无功功率调节器的增益被设定为高,并且调节电流被充分利用。