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公开(公告)号：US09634490B2
公开(公告)日：2017-04-25
申请号：US13023487
申请日：2011-02-08
CPC分类号： H02J3/1878 , G05F1/12 , G05F1/13 , G05F5/00 , H02J3/1807 , Y02E40/30
摘要： A system, in one embodiment, includes a voltage fault detection system. The voltage fault detection system may be configured to acquire a reference voltage signal from a power line to determine if a voltage sag condition is present in the power line, determine a correction voltage for correcting the voltage sag condition, use the reference voltage to produce the correction voltage, and apply the correction voltage to the power line.
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公开(公告)号：US5729445A
公开(公告)日：1998-03-17
申请号：US687422
申请日：1996-09-06
申请人： Dieter Huelsmann
发明人： Dieter Huelsmann
IPC分类号： G05F1/13 , H02M5/293 , H02M7/5383 , H02M7/53846 , H05B39/04 , H02J3/00 , H02M3/24
CPC分类号： H02M7/53846 , G05F1/13 , H02M5/293 , H05B39/048 , Y02B20/148
摘要： A regulated power supply unit with an electronic transformer having an input for a transformer power supply voltage on the primary side, an output for an operating a.c. voltage with a higher-frequency component on the secondary side, and a control device with a variable resistor by means of which the operating a.c. voltage may be set. There is an inductive or capacitive separator component by means of which the higher-frequency component of the operating a.c. voltage can be separated out and taken as the input voltage to a first and a second rectifier circuit. The output voltage of the first rectifier circuit is applied to an amplifier-comparator circuit as its supply voltage. A reference generator circuit is connected to the first rectifier circuit and to the amplifier-comparator circuit. A reference for the operating a.c. voltage can be set by the reference generator circuit. An actual value is derived from the output voltage of the second rectifier circuit and taken to the amplifier-comparator circuit, at the output of which an error signal may be taken. A transistor constitutes the variable resistor and is controlled by the error signal from the amplifier-comparator circuit.
摘要翻译： PCT No.PCT / DE95 / 00149 Sec。 371日期1996年9月6日 102（e）1996年9月6日PCT PCT 1995年1月31日PCT公布。 公开号WO95 / 21514 日期1995年8月10日具有电子变压器的稳压电源单元，其具有初级侧的变压器电源电压的输入，用于运行直流的输出。 在次级侧具有较高频率分量的电压，以及具有可变电阻器的控制装置，通过该电阻可操作交流电。 电压可以设定。 有一个电感或电容分离器组件，通过该分量组件运行交流电的高频分量。 电压可以分离出来并作为第一和第二整流电路的输入电压。 第一整流电路的输出电压作为其电源电压施加到放大器 - 比较器电路。 参考发生器电路连接到第一整流器电路和放大器 - 比较器电路。 操作a.c.的参考。 电压可由参考发生器电路设定。 实际值是从第二整流电路的输出电压得出的，并被送到放大器 - 比较器电路，其输出端可以采用误差信号。 晶体管构成可变电阻器，并由来自放大器 - 比较器电路的误差信号控制。
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3.发明授权Ferroresonant three-phase constant AC voltage transformer arrangement with compensation for unbalanced loads 失效铁电谐振三相恒定交流电压互感器布置，补偿不平衡负载
公开(公告)号：US4893069A
公开(公告)日：1990-01-09
申请号：US358476
申请日：1989-05-30
CPC分类号： G05F3/06 , G05F1/13 , Y10T307/273
摘要： A ferroresonant three-phase constant AC voltage transformer comprising three transformer iron cores with one for each corresponding input supply phase, primary windings and secondary windings formed on each of the transformer iron cores, series reactance components or reactors connected in series, with the primary windings, automatic voltage regulating means for controlling secondary output voltages generated at the secondary windings to a predetermined target value, compensating windings formed so as to be inductively coupled to each of the series reactance components or reactors, and means for connecting the compensating windings in series with each other to form a closed loop circuit. The secondary output voltages are theoretically kept in balanced condition even when the loads or the primary input voltages or both are unbalanced.
摘要翻译： 一个铁电谐振三相恒压交流电压互感器，包括三个变压器铁芯，每个相应的输入电源相一个，初级绕组和次级绕组形成在每个变压器铁芯上，串联电抗分量或串联的电抗器与初级绕组 用于将在次级绕组产生的次级输出电压控制到预定目标值的自动电压调节装置，形成为感应耦合到每个串联电抗部件或电抗器的补偿绕组，以及用于将补偿绕组与 彼此形成闭环电路。 即使当负载或主要输入电压或二者都不平衡时，二次输出电压在理论上也保持在平衡状态。
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公开(公告)号：US3965408A
公开(公告)日：1976-06-22
申请号：US533428
申请日：1974-12-16
CPC分类号： G05F3/06 , G05F1/38 , Y10S174/17
摘要： Standard configuration a.c. power transformer core sections are combined with standard configuration solenoid winding sections to provide a saturable core transformer which is arranged to be driven into saturation by applied alternating and direct current energy with the control of variations in flux changes up to saturation exercised by the direct current flow. A center tapped primary winding is arranged on an I-shaped stack of transformer iron laminations for full-wave excitation. A C-shaped stack of laminations is arranged adjacent to the I-shaped stack and separated by an air gap whereby the primary winding also serves as an input filter choke. The core structure is completed by an E-shaped stack of laminations arranged adjacent to the I-shaped stack and separated by another air gap. Two solenoid windings are arranged on the outer legs of the E-shaped stack and connected to a capacitor for resonating the overall ferroresonant transformer circuit arrangement. Secondary windings are also arranged on the outer legs and connected to a rectifying circuit for supplying direct potential to a load. A control winding is arranged on the central leg of the E-shaped stack of laminations. With this arrangement, the control winding is unaffected by variations in the a.c. voltage as they affect the flux changes in the transformer or in the frequency of the a.c. Regulation of the power supply is executed by direct current flow in the control winding. An adjustable resistor connecting the control winding across the output of the rectifier circuit is often all that is required to complete the circuit. In some applications, an amplifying circuit is used to provide a desired gain in the control winding circuitry.
摘要翻译： 标准配置a.c. 电力变压器铁芯部分与标准配置电磁线圈绕组部分组合，以提供可饱和铁心变压器，其被布置成通过施加的交流和直流能量驱动到饱和状态，并且控制通量变化的变化直到达到直流电流的饱和 。 中心抽头的初级绕组被布置在用于全波激励的I形叠层变压器铁片上。 叠置的C形叠层被布置成与I形叠层相邻并由气隙分开，由此初级绕组也用作输入滤波器扼流圈。 芯结构通过邻近I形叠层排列并由另一个气隙隔开的E形叠层构成。 两个螺线管绕组布置在E形叠层的外部支脚上，并连接到电容器上，以谐振整个铁磁谐振变压器电路装置。 次级绕组也布置在外腿上并连接到整流电路，用于向负载提供直接电位。 控制绕组布置在E形叠片叠片的中心支脚上。 通过这种安排，控制绕组不受交流变压器的影响。 电压，因为它们会影响变压器的通量变化，也可以影响变压器的频率。 电源的调节由控制绕组中的直流电流执行。 连接整流电路输出端的控制绕组的可调电阻通常都是完成电路所需要的。 在一些应用中，放大电路用于在控制绕组电路中提供期望的增益。
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公开(公告)号：US3699424A
公开(公告)日：1972-10-17
申请号：US3699424D
申请日：1971-07-06
CPC分类号： G05F1/13 , H02M3/3388
摘要： The frequency characteristic of a ferroresonant regulator is shown to have a critical jump frequency above which the output voltage of the regulator takes a sudden drop. A regulated voltage converter utilizes this discontinuity to provide automatic overvoltage protection. An inverter drives a ferroresonant regulator and a feedback loop controls the frequency of the inverter in response to output voltage. A short in the feedback loop drives the frequency above the critical jump frequency to provide automatic voltage limiting.
摘要翻译： 铁磁共振调节器的频率特性显示为具有临界跳跃频率，在此之上调节器的输出电压突然下降。 稳压电压转换器利用这种不连续性提供自动过压保护。 变频器驱动铁磁谐振调节器，反馈回路根据输出电压控制变频器的频率。 反馈回路中的短路将频率高于临界跳跃频率，以提供自动电压限制。
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7.发明授权
公开(公告)号：US4313060A
公开(公告)日：1982-01-26
申请号：US121750
申请日：1980-02-15
CPC分类号： H02M3/3378 , G05F1/13 , H02J9/062 , H02M7/00 , Y02B70/1433 , Y10T307/344 , Y10T307/625 , Y10T307/707
摘要： An uninterruptible power supply utilizes a controlled ferroresonant regulator to derive a regulated DC voltage from a primary AC source. A reserve source of DC power is coupled to the output through a DC voltage regulator which is activated when the DC output voltage of the power supply drops below a predetermined threshold.
摘要翻译： 不间断电源利用受控铁分子调节器从主AC电源导出稳压的直流电压。 直流电源的备用电源通过直流电压调节器耦合到输出端，直流电压调节器在电源的直流输出电压下降到预定阈值以下时被激活。
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公开(公告)号：US4068157A
公开(公告)日：1978-01-10
申请号：US695969
申请日：1976-06-14
申请人： John A. Bassett
发明人： John A. Bassett
CPC分类号： G05F1/13
摘要： A circuit is provided for providing a regulated d.c. output of a substantially high output current magnitude from an unregulated single or polyphase a.c. input source. Regulation is provided by a single feedback circuit interacting with a plurality of ferroresonant transformers connected in parallel to a single phase source, singly on each phase or a polyphase source, or interconnected in the known Scott T connection on a three phase source. Regulation is accomplished with thyristor switches which are synchronized with the input phase of each transformer.
摘要翻译： 提供一个电路，用于提供调节的直流 从不受调节的单相或多相a.c.输出相当高的输出电流幅度。 输入源。 调节由与在单相源并联连接的多个铁共振变压器相互作用的单反馈电路提供，单相在每个相或多相源上，或者在三相源上的已知Scott T连接中互连。 通过与每个变压器的输入相位同步的晶闸管开关实现调节。
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公开(公告)号：US3988662A
公开(公告)日：1976-10-26
申请号：US532471
申请日：1974-12-13
申请人： Patrick L. Hunter
发明人： Patrick L. Hunter
CPC分类号： G05F1/13
摘要： A thyristor controlled ferroresonant voltage regulator in which the output voltage is made adjustable by varying the reset flux level of each of two parallel magnetic core paths upon which the load windings are wound. Decoupling from the alternating current source is provided by a separate inductor. The two core paths are decoupled by magnetic shunts, which provides an inductance which may be designed to obtain a soft commutation characteristic for the ferroresonant capacitor. During one half cycle of the output waveform one thyristor is enabled by an associated control circuit to complete a circuit path for the resonant capacitor through a winding on the second magnetic core path, while the flux in the first magnetic core path is clamped; in the second half cycle, another thyristor is enabled at a time determined by the control circuit, to complete a circuit path for the capacitor through a winding on the first magnetic core path while the flux in the second magnetic core path is clamped.
摘要翻译： 一种可控硅铁电谐振电压调节器，其中输出电压通过改变负载绕组缠绕的两个并联磁芯路径中的每一个的复位磁通电平而被调整。 与交流电源的去耦由单独的电感器提供。 两个核心路径通过磁分路去耦，其提供可被设计为获得铁谐振电容器的软换向特性的电感。 在输出波形的一个半周期期间，一个晶闸管由相关联的控制电路使能，以通过第二磁芯路径上的绕组完成谐振电容器的电路路径，同时第一磁芯路径中的磁通被夹紧; 在第二半周期中，在由控制电路确定的时间使能另一个晶闸管，通过第二磁芯路径中的磁通钳位第二磁芯路径，通过绕组完成电容器的电路路径。
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公开(公告)号：USRE28359E
公开(公告)日：1975-03-04
申请号：US20484871
申请日：1971-12-06
摘要： 15. A FERRORESONANT TRANSFORMER INCLUDING A MAGNETIC CORE STRUCTURE, A PRIMARY WINDING AND A SECONDARY WINDING WHEREIN THE CORE STRUCTURE WITH THE SECONDARY WINDING INCLUDES TWO SEPARATE SECTIONS PROVIDING PARALLEL MAGNETIC PATHS FOR THE SECONDARY AND RESONANT FLUX, A CONTROL WINDING ON ONE OF SAID SECTIONS, AND SWITCH MEANS FOR OPENING AND CLOSING A CIRCUIT ACROSS SAID CONTROL WINDING, WITH NO CURRENT SOURCE CONNECTED TO SAID CONTROL WINDING WHEREBY THE ONLY CURRENT IN SAID CONTROL WINDING IS SELF INDUCED CURRENT RESULTING FROM FLUX IN SAID ONE SECTION.
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