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1. 发明专利

JP2008160975A Reactive power controller for alternating-current power system 有权
标题翻译：用于交流电力系统的无功功率控制器
公开(公告)号：JP2008160975A
公开(公告)日：2008-07-10
申请号：JP2006347229
申请日：2006-12-25
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： YASUDA MASARU , TAKEDA MASATOSHI , TERAMOTO HITOSHI
IPC分类号： H02J3/18 , G05F1/70
CPC分类号： G05F1/70 , H02J3/1864 , Y02E40/12
摘要： PROBLEM TO BE SOLVED: To provide a reactive power controller for alternating-current power system wherein voltage suppression, after recovery from a failure, can be controlled al low cost, by using both a compensating capacitor device and a reactive power compensator. SOLUTION: The reactive power controller for alternating-current power system includes the reactive power compensator, the compensating capacitor device, and a compensating capacitor controller. The compensating capacitor controller includes a detection voltage outputting means for outputting a bus detection voltage after recovery from voltage drop failure, corresponding to the alternating-current voltage of a system bus after recovery from the voltage drop failure in an alternating-current power system; and a compensating capacitor control circuit for controlling the state of connection of the compensating capacitor to the system bus. The compensating capacitor control circuit controls the state of connection between the compensating capacitor and the system bus, based on the voltage level of the bus detection voltage, after the recovery from the voltage drop failure. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种用于交流电力系统的无功功率控制器，其中通过使用补偿电容器装置和无功功率补偿器，能够以低成本控制从故障恢复之后的电压抑制。
解决方案：交流电力系统的无功功率控制器包括无功功率补偿器，补偿电容器件和补偿电容器控制器。补偿电容器控制器包括：检测电压输出装置，用于在从交流电力系统中的电压降故障恢复之后，从与电压下降故障恢复之后输出总线检测电压;对应于系统总线的交流电压; 以及补偿电容器控制电路，用于控制补偿电容器与系统总线的连接状态。补偿电容器控制电路根据总线检测电压的电压电平，在从电压下降故障恢复之后，控制补偿电容器和系统总线之间的连接状态。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2015042031A 無効電力補償装置および無効電力補償システム有权
标题翻译：无功补偿装置及无功补偿系统
公开(公告)号：JP2015042031A
公开(公告)日：2015-03-02
申请号：JP2013170397
申请日：2013-08-20
申请人：三菱電機株式会社 , Mitsubishi Electric Corp
发明人： MATSUDA AKIHIRO , OGUSA SHINICHI , TAKEDA MASATOSHI
IPC分类号： H02J3/18
CPC分类号： G05F1/70
摘要：【課題】精度良く系統インピーダンスを求めることによって系統電圧の制御性を高めることが可能な無効電力補償装置を提供する。【解決手段】無効電力補償装置10において、制御部45は、第1の動作モード時に、検出された系統電圧Vと制御パラメータとに基づいて、無効電力出力部12によって出力される無効電力Qの大きさを制御する。制御部45は、第2の動作モード時に出力変化期間を設け、この出力変化期間において無効電力出力部12によって電力系統100に出力される無効電力Qの大きさを変化させる。制御部45は、出力変化期間内の複数の検出時点で検出された系統電圧の変化量&Dgr;Vと対応する無効電力の変化量&Dgr;Qとに基づいて複数の検出時点における電力系統の系統インピーダンスXを算出し、算出した複数の系統インピーダンスXのばらつきが許容範囲内である場合に、算出した系統インピーダンスXに基づいて制御パラメータを調整する。【選択図】図1
摘要翻译：要解决的问题：提供一种能够通过确定系统阻抗来提高系统电压的可控性的无功补偿装置。解决方案：在无功补偿装置10中，在第一操作模式中，控制部分45控制幅度基于检测到的系统电压V和控制参数从无功功率输出部12输出的无功功率Q。在第二操作模式中，控制部45设定输出变化期间，并且在输出变化期间，将从无功功率输出部12输出的无功功率Q的大小变更为电力系统100。控制部45基于在输出变化期间内的多个检测时间点检测到的系统电压的变化＆Dgr; V，对应的变化＆Dgr，计算多个检测时间点的电力系统的系统阻抗X. Q，并且当系统阻抗X的多次计算的分散在允许范围内时，基于所计算的系统阻抗X来调整控制参数。

3. 发明专利

JP2014017963A Static reactive power compensator 有权
标题翻译：静态电力补偿器
公开(公告)号：JP2014017963A
公开(公告)日：2014-01-30
申请号：JP2012153550
申请日：2012-07-09
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： MORI OSAMU , TAKEDA MASATOSHI , OGUSA SHINICHI
IPC分类号： H02J3/18 , G05F1/70
CPC分类号： G05F1/70 , H02M1/4208 , Y02E40/30
摘要： PROBLEM TO BE SOLVED: To reduce a required insulation distance among phases of a thyristor switch in a static reactive power compensator having a three-phase TSC.SOLUTION: TSCs 11a, 11b, and 11c are delta-connected to three-phase AC buses 5a, 5b, and 5c. The TSCs 11a, 11b, and 11c include reactors 20a, 20b, and 20c, capacitors 30a, 30b, and 30c, and thyristor switches 40a, 40b, and 40c electrically connected in series, respectively. The three-phase thyristor switches 40a, 40b, and 40c are mounted and arranged so that inter-terminal distances of the thyristor switches are uneven among respective phases. The TSC11a, 11b, and 11c are configured so that arrangements of electrical connection between the thyristor switches 40a, 40b, and 40c and the capacitors 30a, 30b, and 30c along a one-round route of the delta connection are reverse to each other for two phases between which the inter-terminal distance is the shortest.
摘要翻译：要解决的问题：减少具有三相TSC的静态无功功率补偿器中的晶闸管开关之间所需的绝缘距离。解决方案：TSC 11a，11b和11c与三相AC总线5a ，5b和5c。 TSC 11a，11b和11c分别包括电抗器20a，20b和20c，电容器30a，30b和30c以及串联电连接的晶闸管开关40a，40b和40c。三相晶闸管开关40a，40b和40c被安装和布置，使得晶闸管开关的端子间距离在各相之间是不均匀的。 TSC11a，11b和11c被配置为使得沿着三角形连接的单向路径的晶闸管开关40a，40b和40c与电容器30a，30b和30c之间的电连接的布置彼此相反，以便两个阶段之间的终端间距离最短。

4. 发明专利

JP2009131003A Power system control apparatus and power system control method 有权
标题翻译：电力系统控制装置和电力系统控制方法
公开(公告)号：JP2009131003A
公开(公告)日：2009-06-11
申请号：JP2007301674
申请日：2007-11-21
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： YASUDA MASARU , TERAMOTO HITOSHI , TAKEDA MASATOSHI , TADOKORO MICHIHIRO
IPC分类号： H02J3/18 , G05F1/70 , H02J3/16
CPC分类号： H02J3/1821 , G05F1/70 , H02J3/1864 , Y02E40/12
摘要： PROBLEM TO BE SOLVED: To provide a power system control apparatus capable of surely stabilizing a system voltage, and to provide a power system control method. SOLUTION: In the power system control apparatus, an SVC control section 20 detects a bus PL1 voltage by an instrument transformer PT1, and adjusts reactive power generated by an SVC 10 according to the detected bus voltage. A cooperative control section 30 generates a control command for controlling the interconnection and parallel-off of a phase lead capacitor SC1 and a phase lag reactor Shr1 on the basis of the amount of reactive power generated by the SVC 10 and the bus voltage V1 detected by the instrument transformer PT1 and a voltage sensor 42. A voltage comparator 40 compares the bus voltage V1 with a predetermined threshold voltage VL2 set to a voltage lower than a lower limit value of a steady state fluctuation range of the bus voltage and outputs the comparison result to a circuit breaker control section 50. When the bus voltage V1 is lower than the threshold voltage VL2, the circuit breaker control section 50 locks the control command output from the cooperative control section 30. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够可靠地稳定系统电压并提供电力系统控制方法的电力系统控制装置。解决方案：在电力系统控制装置中，SVC控制部分20通过仪表变压器PT1检测总线PL1电压，并根据检测到的总线电压调整由SVC 10产生的无功功率。合作控制部分30基于由SVC 10产生的无功功率量和由总线电压V1检测的总线电压V1产生用于控制相位超前电容器SC1和相位滞后电抗器Shr1的互连和并联的控制命令仪表变压器PT1和电压传感器42.电压比较器40将总线电压V1与设定为低于总线电压的稳态波动范围的下限值的电压的预定阈值电压VL2进行比较，并输出比较结果断路器控制部50在总线电压V1低于阈值电压VL2的情况下，锁定从合作控制部30输出的控制命令。（C）2009，JPO＆INPIT

5. 发明专利

JP2008040733A Reactive power control system and reactive power compensation system 有权
标题翻译：反应动力控制系统和反应动力补偿系统
公开(公告)号：JP2008040733A
公开(公告)日：2008-02-21
申请号：JP2006213243
申请日：2006-08-04
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： TOKI NAOHIRO , TAKEDA MASATOSHI , KONO YOSHIYUKI , TENMA KOJI
IPC分类号： G05F1/70 , H02J3/18
CPC分类号： H02J3/1864 , Y02E40/12
摘要： PROBLEM TO BE SOLVED: To solve the problems in which a conventional reactive power compensation system using a static type reactive power compensation system (SVC) is often operated while the SVC constantly generates reactive power corresponding to the major part of its capacity and the SVC cannot sufficiently generate reactive power necessary for restraining such voltage variation when sudden voltage variation is happened under such the condition and accordingly, the voltage variation may not be restrained. SOLUTION: A reactive power control system comprises a comparison voltage generating section 103 for following the control target voltage of an object for restraining the voltage variation at a designated time delay property and generating comparison voltage limited in a designated range, a varied voltage generating section 104 for generating the varied voltage as a difference between the comparison voltage and control target voltage, and reactive power control sections 105 to 108 for controlling the reactive voltage generated by the static type reactive power compensation system of the control target in response to the varied voltage by a temporal property faster than the temporal delay property of the comparison voltage. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了解决常规运行静态无功补偿系统（SVC）的常规无功补偿系统，SVC不断生成对应于其主要部分容量的无功功率的问题，以及在这种情况下，当突然的电压变化发生时，SVC不能充分产生抑制这种电压变化所必需的无功功率，因此不能限制电压变化。解决方案：无功功率控制系统包括比较电压发生部分103，用于跟随目标的控制目标电压，用于以指定的时间延迟特性抑制电压变化并产生在指定范围内限制的比较电压，变化的电压生成部分104，用于产生作为比较电压和控制目标电压之间的差的变化的电压;以及无功功率控制部分105至108，用于响应于控制目标的控制目标的静态无功补偿系统产生的无功电压变化电压的时间特性比比较电压的时间延迟特性快。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2008011626A Control method for static var compensator 有权
标题翻译：静态补偿器的控制方法
公开(公告)号：JP2008011626A
公开(公告)日：2008-01-17
申请号：JP2006178153
申请日：2006-06-28
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： TAKEDA MASATOSHI , TENMA KOJI
IPC分类号： H02J3/18 , G05F1/70
CPC分类号： G05F1/70 , H02J3/1864 , Y02E40/12
摘要： PROBLEM TO BE SOLVED: To solve the following problems associated with conventional static var compensators (SVCs): when system voltage is unbalanced, a tertiary harmonic current flows out to the system side and thus tertiary harmonic voltage is distorted and other equipment is harmfully influenced; since a tertiary harmoic filter is required, a cost is enhanced; and when control is carried out to make identical the fundamental wave currents of the respective phases of SVC to suppress the outflow of a tertiary harmonic current, the control becomes unstable and tertiary harmonics are expanded. SOLUTION: A static var compensator 3 is so constructed that the phases of the currents of reactors 4a, 4b, 5a, 5b, 6a, 6b are controlled by thyristors 7, 8, 9 on a phase-by-phase basis and var is thereby controlled. The compensator is provided with detecting means 104a, 104b, 104c for detecting tertiary harmonic currents passed through the respective phases of the compensator. The thyristors of the respective phases are controlled so that the amounts of produced tertiary harmonic currents are equalized in the respective phases based on the tertiary harmonic currents passed through the respective phases detected by these detecting means. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：解决与传统静态无功补偿器（SVC）相关的以下问题：当系统电压不平衡时，三次谐波电流流向系统侧，三次谐波电压变形，其他设备为有害影响由于需要三级有害滤波器，所以成本提高; 并且当进行控制以使SVC的各相的基波电流相同以抑制三次谐波电流的流出时，控制变得不稳定并且三次谐波膨胀。解决方案：静态无功补偿器3被构造成使得反应器4a，4b，5a，5b，6a，6b的电流的相位是由晶闸管7,8,9在逐相的基础上控制的， var被控制。补偿器设置有用于检测通过补偿器的各相的三次谐波电流的检测装置104a，104b，104c。控制各相的晶闸管，使得基于通过这些检测装置检测到的各相的三次谐波电流，在各相中产生的三次谐波电流的量相等。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2012123450A Reactive power compensator 有权
标题翻译：无功补偿器
公开(公告)号：JP2012123450A
公开(公告)日：2012-06-28
申请号：JP2010271270
申请日：2010-12-06
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： MATSUDA AKIHIRO , KONO YOSHIYUKI , TAKEDA MASATOSHI
IPC分类号： G05F1/70 , H02J3/18
CPC分类号： H02J3/1828 , H02J3/1878 , Y02E40/12 , Y10T307/669
摘要： PROBLEM TO BE SOLVED: To provide a reactive power compensator capable of using a simple configuration to control multiple SVCs in a coordinated manner and of controlling output of a steady-state SVC to correspond to a voltage variation when a power system is disturbed, in the case where the SVCs are mutually arranged nearby.SOLUTION: An SVC 1 is connected to a bus line 7 and is controlled by an SVC control part 4. A variable voltage generation part 41 comprises a voltage reference circuit 141 for outputting a voltage reference value. An SVC 2 is connected to a bus line 14 and is controlled by an SVC control part 3. A variable voltage generation part 31 comprises a primary delay control block 131 with a limiter for generating a comparison voltage that keeps pace with a predetermined delay characteristic and is limited within a predetermined range. An impedance value XS1 of slope reactance 42 of the SVC 1 is set at a level lower than an impedance value XS2 of slope reactance 32 of the SVC 2.
摘要翻译：要解决的问题：提供能够使用简单配置以协调的方式控制多个SVC的无功功率补偿器，并且在电力系统被干扰时控制稳态SVC的输出以对应于电压变化在SVC相邻配置的情况下。解决方案：SVC 1连接到总线7并由SVC控制部分4控制。可变电压产生部分41包括用于输出电压参考值的电压参考电路141。 SVC 2连接到总线14并由SVC控制部分3控制。可变电压产生部分31包括具有限制器的主延迟控制块131，用于产生与预定延迟特性保持同步的比较电压，被限制在预定范围内。 SVC 1的斜坡电抗42的阻抗值XS1被设定为低于SVC 2的斜率电抗32的阻抗值XS2的水平。（C）2012，JPO＆INPIT

8. 发明专利

JP2010246363A Reactive power compensator 有权
标题翻译：无功补偿器
公开(公告)号：JP2010246363A
公开(公告)日：2010-10-28
申请号：JP2009283860
申请日：2009-12-15
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： TAKEDA MASATOSHI , OGUSA SHINICHI
IPC分类号： H02J3/18 , G05F1/70
CPC分类号： G05F1/70 , H02J3/1828 , Y02E40/30
摘要： PROBLEM TO BE SOLVED: To solve the problem that the conventional reactive power compensator can not continue reactive power compensation without changing stepwise control width when some of capacitor banks out of a plurality of capacitor banks fail. SOLUTION: The capacitor bank portion 30 constituted of capacitor banks 31 to 33 having capacitance in accordance with a sequence of the n-th power of 2 of basic capacitance includes a capacitor bank 31 of basic capacitance, a capacitor bank 32 constituted of sub-banks 40 and 41, and a capacitor bank 33 constituted of sub-banks 42 and 43. The capacitance of one sub-bank is set to a capacitance in accordance with a sequence of the m-th power of 2 of basic capacitance. When any one of the capacitor banks 31 to 33 fails, the capacitor banks following the failed capacitor bank substitute for a capacitor bank located immediately before itself. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了解决传统的无功补偿器在多个电容器组中的一些电容器组出现故障时不会改变阶跃控制宽度的情况下不能继续无功补偿的问题。解决方案：由电容器组31至33组成的电容器组部分30，其具有根据基本电容的2的n次方的次序的电容，包括基本电容的电容器组31，由子组40和41以及由子组42和43构成的电容器组33.一个子组的电容根据基本电容的2的m次方的次序被设置为电容。当电容器组31至33中的任一个发生故障时，跟随故障电容器组的电容器组替代位于其自身之前的电容器组。版权所有（C）2011，JPO＆INPIT

9. 发明专利

JP2007325349A System-stabilizing control method 有权
标题翻译：系统稳定控制方法
公开(公告)号：JP2007325349A
公开(公告)日：2007-12-13
申请号：JP2006150055
申请日：2006-05-30
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： TOKI NAOHIRO , TAKEDA MASATOSHI , KONO YOSHIYUKI , TENMA KOJI
IPC分类号： H02J3/18 , G05F1/70
CPC分类号： G05F1/70 , H02J3/1835 , Y02E40/12 , Y02E40/30
摘要： PROBLEM TO BE SOLVED: To perform system-stabilizing control with relatively smaller SVC capacity, as compared with conventional types. SOLUTION: In a system-stabilizing method which controls reactive power by means of a reactive power compensator 11, according to the voltage ripple of a power system where a capacitor 7 is connected to a bus 1 via a breaker 4, the leading compensating reactive power by the reactive power compensator 11 is suppressed, by turning on a capacitor 7 via the breaker 4 when the bus voltage drops, and the delayed compensative reactive power by the reactive power compensator 11 is suppressed, by paralleling off the capacitor 7 via the breaker 4 when the bus voltage rises. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：与常规类型相比，以相对较小的SVC容量进行系统稳定控制。解决方案：在通过无功功率补偿器11控制无功功率的系统稳定方法中，根据电力系统的电压纹波，其中电容器7经由断路器4连接到总线1，导线当总线电压下降时，通过断开器4接通电容器7，抑制由无功功率补偿器11补偿的无功功率，并且通过与电容器7并联，通过并联连接电容器7，经由当总线电压上升时，断路器4。版权所有（C）2008，JPO＆INPIT

10. 发明专利

JPH06261548A UNBALANCE COMPENSATOR FOR THREE PHASE/TWO PHASE CONVERTER 失效
公开(公告)号：JPH06261548A
公开(公告)日：1994-09-16
申请号：JP4760593
申请日：1993-03-09
申请人： RAILWAY TECHNICAL RES INST , MITSUBISHI ELECTRIC CORP
发明人： MOCHINAGA YOSHIFUMI , HISAMIZU TAIJI , TAKEDA MASATOSHI , MIYASHITA TAKESHI
IPC分类号： H02J3/18 , H02M5/14 , H02M5/45
摘要： PURPOSE:To obtain an unbalance compensator capable of suppressing harmonic current by comprising a converter control circuit which controls a both power converter on the basis of command signals from a power interchange control circuit, a reactive power compensation circuit, and a harmonic circuit. CONSTITUTION:A power converter 10 communicates power in both directions between AC power of an M connection power source circuit on the secondary side of a Scott connection transformer 2 and DC power of a DC intermediate circuit, and a power converter 11 between AC power of a T connection power source circuit and DC power of the DC intermediate circuit. A power interchange control circuit 15, a DC voltage control circuit 16, a reactive power compensation circuit 17, and a harmonic compensation circuit 18 output command signals complying with control targets, which are synthesized in a batch by a current command operational circuit 19, so that the power converters 10,11 undergo on-off switching control through a current control circuit 20 and a PWM control circuit 21 on the basis of the command signal. As a result, two-phase side active power becomes equal, and simultaneously reactive power and harmonic current are compensated to provide a complete equalization of current.

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