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1. 发明授权

US4434376A Method and means for damping subsynchronous oscillations and DC offset in an AC power system 失效
标题翻译：用于阻抗交流电源系统中的次同步振荡和直流偏移的方法和装置
公开(公告)号：US4434376A
公开(公告)日：1984-02-28
申请号：US253688
申请日：1981-04-13
申请人： Narain G. Hingorani
发明人： Narain G. Hingorani
IPC分类号： H02J3/18 , H02J3/24 , G05F1/12
CPC分类号： H02J3/1807 , H02J3/24 , Y02E40/30
摘要： Subsynchronous oscillations and DC offset in an electrical power system are dampened by measuring the half-cycle period of current or voltage line waves, comparing the measured half-cycle time periods to a desired half-cycle time period and dissipating the line waves in measured half-cycle time periods which are longer than the desired half-cycle time period. Damping apparatus includes a reactance connected in a power line with selectively bidirectional conductors in parallel with the reactance whereby the reactance can be shorted. Alternatively, the selectively bi-directional conductors can connect a power line to ground or neutral when half-cycle time periods exceed a desired half-cycle time period.
摘要翻译：通过测量电流或电压线波的半周期来比较电力系统中的次同步振荡和直流偏移，将所测量的半周期时间段与期望的半周期时间周期进行比较，并将所测半波长的线路波消耗比期望的半周期时间长的循环时间段。阻尼装置包括在电力线上连接的电抗器，其选择性地与电抗平行的双向导体，从而可以使电抗短路。或者，当半周期时间段超过期望的半周期时间段时，选择性双向导体可以将电力线连接到地或中性点。

2. 发明授权

US4278832A Method and means for cleaning the gas insulated environment of an electrical apparatus 失效
标题翻译：清洁电气设备气体绝缘环境的方法和装置
公开(公告)号：US4278832A
公开(公告)日：1981-07-14
申请号：US89268
申请日：1979-10-29
申请人： Narain G. Hingorani
发明人： Narain G. Hingorani
IPC分类号： H02B13/055 , H01B17/36 , B03C3/70
CPC分类号： H02B13/055
摘要： A sealed environment such as in a gas insulated electrical substation is cleaned by introducing a cleansing fluid in vapor form into the environment and condensing the vapor on surfaces within the environment. The condensed fluid is then removed and filtered to extract contaminants such as particulate matter. The cleansing fluid can be continuously introduced or periodically introduced during the cleaning process. By selecting a cleansing fluid with electrical insulating properties and a vaporization temperature lower than the condensation temperature of the gas insulation, electrical apparatus can be cleaned during normal operation of the apparatus.
摘要翻译：通过将蒸汽形式的清洁流体引入环境并将蒸汽冷凝在环境中的表面上来清洁诸如在气体绝缘变电站中的密封环境。然后将冷凝的流体除去并过滤以提取诸如颗粒物质的污染物。清洁液可以在清洁过程中连续引入或定期引入。通过选择具有电气绝缘性能和低于气体绝缘体的冷凝温度的蒸发温度的清洁液，可以在设备的正常操作期间清洁电气设备。

3. 发明授权

US4454016A Removal of PCB from oil and other liquids 失效
标题翻译：从油和其他液体中去除PCB
公开(公告)号：US4454016A
公开(公告)日：1984-06-12
申请号：US310518
申请日：1981-10-13
申请人： Mario Rabinowitz , Narain G. Hingorani , E. Robert Perry
发明人： Mario Rabinowitz , Narain G. Hingorani , E. Robert Perry
IPC分类号： B01D15/00 , B03C5/02 , C10G32/02 , C10G33/02
CPC分类号： B03C5/022 , B01D15/00 , C10G32/02
摘要： A technique is disclosed herein for separating out one group of polar particles for example PCB molecules having polar moments of given magnitudes, from a separate group of polar particles, for example oil molecules having polar moments of lesser magnitude, in a mixture of the two. This is accomplished by utilizing a chamber containing a substance which has an affinity for the first particle, preferably neoprene in the case of PCB. The substance is carried by arrangements of electrodes or the like which produce a non-uniform electric field in the chamber which causes the first particle, e.g. the PCB, to be attracted toward the substance carried by the electrodes, e.g., the neoprene, faster than the second particles. In this way, first particles are separated out from the mixture and are absorbed by a particle collecting substance of suitable type.
摘要翻译：本文公开了一种技术，用于在两者的混合物中从一组极性粒子（例如具有较小幅度的极性力矩的油分子）分离出一组极性粒子，例如具有给定量级的极性力矩的PCB分子。这是通过利用含有对于第一颗粒具有亲和性的物质的室来实现的，优选在PCB的情况下为氯丁橡胶。该物质由在室中产生不均匀电场的电极等的布置承载，这导致第一颗粒，例如， PCB被吸引到诸如氯丁橡胶的电极携带的物质上，比第二颗粒更快。以这种方式，第一颗粒从混合物中分离出来并被适当类型的颗粒收集物质吸收。

4. 发明授权

US4355241A Means for damping subsynchronous oscillations in an AC power system including overload protection 失效
标题翻译：用于阻止交流电源系统中的次同步振荡的装置，包括过载保护
公开(公告)号：US4355241A
公开(公告)日：1982-10-19
申请号：US178622
申请日：1980-08-15
申请人： Narain G. Hingorani
发明人： Narain G. Hingorani
IPC分类号： H02J3/24 , H02J3/18 , G05F1/12
CPC分类号： H02J3/24
摘要： Reactance means serially connected in a power line is shunted by selectively bidirectional conduction means which is triggered in response to half-cycle time periods of current waves exceeding a desired half-cycle time period and also in response to an over voltage across the reactance means.
摘要翻译：串联连接在电力线上的电抗器通过选择性的双向传导装置分流，该双向传导装置响应于超过期望半周期时间段的电流波的半周期时间而被触发，并且还响应于电抗装置两端的过电压。

5. 发明授权

US4292545A Method and means for damping subsynchronous oscillations and DC offset in an AC power system 失效
标题翻译：用于阻抗交流电源系统中的次同步振荡和直流偏移的方法和装置
公开(公告)号：US4292545A
公开(公告)日：1981-09-29
申请号：US59994
申请日：1979-07-23
申请人： Narain G. Hingorani
发明人： Narain G. Hingorani
IPC分类号： H02J3/18 , H02J3/24 , G05F1/12
CPC分类号： H02J3/1807 , H02J3/24 , Y02E40/30
摘要： Subsynchronous oscillations and DC offset in an electrical power system are dampened by measuring the half-cycle period of current or voltage line waves, comparing the measured half-cycle time periods to a desired half-cycle time period and dissipating the line waves in measured half-cycle time periods which are longer than the desired half-cycle time period. Damping apparatus includes a reactance connected in a power line with selectively bi-directional conductors in parallel with the reactance whereby the reactance can be shorted. Alternatively, the selectively bi-directional conductors can connect a power line to ground or neutral when half-cycle time periods exceed a desired half-cycle time period.
摘要翻译：通过测量电流或电压线波的半周期来比较电力系统中的次同步振荡和直流偏移，将所测量的半周期时间段与期望的半周期时间周期进行比较，并将所测半波长的线路波消耗比期望的半周期时间长的循环时间段。阻尼装置包括在电力线上连接的电抗器，选择性地与电抗平行的双向导体，从而可以使电抗短路。或者，当半周期时间段超过期望的半周期时间段时，选择性双向导体可以将电力线连接到地或中性点。

6. 发明授权

US5041164A Apparatus for washing electrical insulators 失效
标题翻译：电绝缘体清洗装置
公开(公告)号：US5041164A
公开(公告)日：1991-08-20
申请号：US216304
申请日：1988-07-07
申请人： Narain G. Hingorani
发明人： Narain G. Hingorani
IPC分类号： B08B3/02 , H02G1/02
CPC分类号： H02G1/02 , B08B3/02 , B08B2203/0229 , B08B2230/01
摘要： Apparatus for washing the disc portions of an electrical insulator includes first and second mating housing portions for positioning about the discs and fluid lines for delivering a cleansing fluid through the housing portions for cleaning the surface of the discs. The two mating housing portions preferably define a basin for collecting the cleansing fluid and facilitating removal of the cleansing fluid after use. A support assembly including a robotic arm positions the first and second mating housing portions about the discs of the electrical insulator for cleaning. A cleaning liquid such as water or freon or a cleaning gas such as air or steam is applied through the mating housing portions for cleaning the surface of the discs. Following the cleaning, a surface-enhancing material such as a silicone coating can be applied to the surface of the insulator for protection from future contamination and make the insulator more resistant to electrical or mechanical degradation.
摘要翻译：用于清洗电绝缘体的盘部分的装置包括用于围绕盘和流体线定位的第一和第二配合壳体部分，用于通过壳体部分输送清洁流体以清洁盘的表面。两个配合的壳体部分优选地限定用于收集清洁流体的盆，并且便于使用后去除清洁流体。包括机器人臂的支撑组件将第一和第二配合壳体部分围绕电绝缘体的盘定位以进行清洁。诸如水或氟利昂的清洁液体或诸如空气或蒸汽的清洁气体通过配合壳体部分被施加以清洁盘的表面。在清洁之后，可以将表面增强材料如硅氧烷涂层施加到绝缘体的表面上，以防止将来的污染，并使绝缘体更能抵抗电气或机械降解。

7. 发明授权

US4331882A Method and means for detecting spurious electrical signals in an electrical power system 失效
标题翻译：用于检测电力系统中的杂散电信号的方法和装置
公开(公告)号：US4331882A
公开(公告)日：1982-05-25
申请号：US130733
申请日：1980-03-17
申请人： Narain G. Hingorani
发明人： Narain G. Hingorani
IPC分类号： G01R23/00 , G01R23/15 , H02H3/50 , H02H7/06 , H02H7/08
CPC分类号： H02H7/06 , G01R23/005 , G01R23/15 , H02H3/50 , Y10T307/852
摘要： Spurious subsynchronous and supersynchronous electrical signals in an electrical power system are detected rapidly and reliably by generating an electrical signal which is proportional to the power signal and rectifying the generated signal. The rectified signal includes a dc component and a component having a frequency equal to the difference of the contact power frequency and the spurious signal frequency. The component is readily identified by a tuned filter and detector whereby remedial action can be taken to eliminate the spurious signal.
摘要翻译：通过产生与功率信号成比例的电信号并整流产生的信号，迅速可靠地检测电力系统中的杂散次同步和超同步电信号。整流信号包括直流分量和频率等于接触功率频率和寄生信号频率的差的分量。通过调谐滤波器和检测器容易地识别该分量，从而可以采取补救措施来消除杂散信号。

8. 发明授权

US5420495A Transmission line power flow controller 失效
标题翻译：输电线路电力流量控制器
公开(公告)号：US5420495A
公开(公告)日：1995-05-30
申请号：US48858
申请日：1993-04-19
申请人： Narain G. Hingorani
发明人： Narain G. Hingorani
IPC分类号： G05F1/66 , G05F1/00
CPC分类号： G05F1/66
摘要： A transmission line power flow control system and method selectively reverses power flow direction and controls power flow level over a transmission line. A capacitor having a variable capacitive impedance is selectively inserted in series with the line. The capacitor has a maximum capacitive impedance magnitude which exceeds the magnitude of the inductive impedance of the transmission line. A switching device in parallel with the capacitor inserts and removes the capacitor from the line. The capacitor maybe inserted and removed in a stepwise fashion using several modules, or in a gradual fashion by using inductors in series with the modular switching devices. In response to measurements of power flow parameters, such as line current and line to ground voltages, a controller controls the switching device(s) to selectively vary the net impedance of the transmission line to control the direction and magnitude of power flow therethrough.
摘要翻译：传输线功率流控制系统和方法选择性地逆转功率流方向并控制传输线上的功率流量级。具有可变容性阻抗的电容器与线路选择性地插入。电容器具有超过传输线的电感阻抗的大小的最大电容阻抗幅度。与电容器并联的开关器件插入并从线路中移除电容器。可以使用多个模块以逐步方式插入和移除电容器，或者通过使用与模块化开关器件串联的电感器以逐渐的方式插入和移除电容器。响应于功率流量参数（例如线路电流和线对地电压）的测量，控制器控制开关装置以选择性地改变传输线的净阻抗以控制通过其中的功率流的方向和幅度。

9. 发明授权

US5215599A Advanced solar cell 失效
标题翻译：高级太阳能电池
公开(公告)号：US5215599A
公开(公告)日：1993-06-01
申请号：US695612
申请日：1991-05-03
申请人： Narain G. Hingorani , Harshad Mehta
发明人： Narain G. Hingorani , Harshad Mehta
IPC分类号： H01L31/04 , H01L27/142 , H01L31/02 , H01L31/068
CPC分类号： H01L31/068 , H01L27/142 , H01L31/02021 , Y02E10/547
摘要： An advanced solar cell having an improved efficiency over known conventional solar cells uses an external electric field to enhance the conversion of solar energy into electrical energy. The advanced solar cell has a layered extrinsic semiconductor with a lightly doped base layer sandwiched between two oppositely and heavily doped layers to form a P-N junction within the semiconductor. The base layer has opposing incident and collection surfaces, at least one of which has recessed contact regions interspersed between biasing regions. At least one of the heavily doped layers is substantially confined within the recessed contact regions. Overlaying the biasing region is an enhancement layer, such as a layered MOS structure. Biasing the enhancement layer provides an externally generated electric field to the semiconductor which enhances a depletion region formed around the P-N junction when photon radiation impinges on the semiconductor. A transparent layer of a conductive material may overlay one of the heavily doped layers or comprise a portion of the MOS structure. A method is also provided of converting solar energy into electrical energy.
摘要翻译：与已知的常规太阳能电池相比，具有改进的效率的先进的太阳能电池使用外部电场来增强太阳能转换成电能。先进的太阳能电池具有分层的外部半导体，其中掺杂的基底层被夹在两个相对和重掺杂的层之间，以在半导体内形成P-N结。基层具有相对的入射和收集表面，其中至少一个具有散布在偏置区域之间的凹陷接触区域。重掺杂层中的至少一个基本上限制在凹入的接触区域内。叠加偏置区域是增强层，例如分层MOS结构。增强层的偏置为半导体提供外部产生的电场，当光子辐射照射在半导体上时，增强了形成在P-N结周围的耗尽区。导电材料的透明层可以覆盖重掺杂层中的一个或者包括MOS结构的一部分。还提供了一种将太阳能转化为电能的方法。

10. 发明授权

US4164772A AC fault current limiting circuit 失效
标题翻译：交流故障限流电路
公开(公告)号：US4164772A
公开(公告)日：1979-08-14
申请号：US897040
申请日：1978-04-17
申请人： Narain G. Hingorani
发明人： Narain G. Hingorani
IPC分类号： H01H9/54 , H02H9/02
CPC分类号： H01H9/54 , H02H9/02 , Y10S174/17
摘要： Circuitry for limiting the instantaneous peak current, under fault conditions, of an AC power line, includes a high speed circuit breaker in series with a first capacitor in a main current-carrying branch, which branch is paralleled by two additional branches. According to various embodiments these branches contain various combinations of resistance, capacitance and spark gap elements whereby upon occurrence of the excess fault condition, the high speed circuit breaker opens. Thereafter the voltage buildup across the first series capacitor is sequentially commutated to a second branch having a capacitor and spark gap, with a predetermined arc-over voltage, and subsequently to a third resistive branch. The third branch effectively provides the peak current limiting impedance.
摘要翻译：用于限制交流电力线路的故障条件下的瞬时峰值电流的电路包括与主载流分支中的第一电容器串联的高速断路器，该分支与两个附加分支并联。根据各种实施例，这些分支包含电阻，电容和火花隙元件的各种组合，由此在出现过剩故障状况时，高速断路器断开。此后，跨越第一串联电容器的电压累积顺序地转换到具有预定的电弧过电压的电容器和火花隙的第二分支，并且随后转换到第三电阻分支。第三个分支有效地提供了峰值电流限制阻抗。

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