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1. 发明申请

WO2016110254A1 FAST RESPONSE ACTIVE REACTIVE POWER (KVAR) COMPENSATOR 审中-公开
标题翻译：快速响应主动反应功率（KVAR）补偿器
公开(公告)号：WO2016110254A1
公开(公告)日：2016-07-14
申请号：PCT/CN2016/070254
申请日：2016-01-06
申请人： EDGE ELECTRONS LIMITED
发明人： STEWART, Neal George , CHENG, Wing Ling
IPC分类号： H02J3/18 , H02M5/22
CPC分类号： H02J3/18 , H02J3/1814 , H02M5/04 , Y02E40/18
摘要： Legacy automatic variable capacitor KVAR compensation systems typically use either electromechanical devices such as relays or contactors of various forms and types to switch the selected capacitors in and out of the electrical system under some form of electronic control. These systems are slow and discontinuous in their ability to closely regulate the exact value of compensatory capacitance needed to compensate the variable and rapidly changing reactive power KVAR in the electrical power transmission and distribution networks. The present invention provides a fast response active KVAR compensator based on a variable transimpedance topology, the KVAR compensator comprises a first and a second independently controllable AC bidirectional switches (S1, S2); a first power inductor (L1); a first current transformer (CT1) for generating a first power inductor current direction data signal indicating the first power inductor current direction; an output capacitor (Co) with a fixed capacitance or an output inductor with a fixed inductance; and a control circuitry for receiving an AC input voltage, an AC output voltage and the first power inductor current direction data signal, measuring a KVAR value and setting a variable gain to generate an apparent impedance across the AC input for compensating the KVAR.
摘要翻译：传统的自动可变电容器KVAR补偿系统通常使用诸如各种形式和类型的继电器或接触器之类的机电装置在某种形式的电子控制下将选定的电容器切换到电气系统中。这些系统在紧密调节补偿电容的精确值的能力上是缓慢和不连续的，以补偿电力传输和配电网络中的可变和快速变化的无功功率KVAR。本发明提供了一种基于可变跨阻拓扑的快速响应有源KVAR补偿器，该KVAR补偿器包括第一和第二独立可控AC双向开关（S1，S2）; 第一功率电感器（L1）; 第一电流互感器（CT1），用于产生指示第一功率电感器电流方向的第一功率电感器电流方向数据信号; 具有固定电容的输出电容器（Co）或具有固定电感的输出电感器; 以及用于接收AC输入电压，AC输出电压和第一功率电感器电流方向数据信号的控制电路，测量KVAR值并设置可变增益以在AC输入端产生用于补偿KVAR的视在阻抗。

2. 发明申请

WO2016138847A1 METHOD AND APPARATUS TO SOLVE PFC CAPACITOR REDUCTION OF LINE AFLC RIPPLE WITHOUT PASSIVE FILTERS 审中-公开
标题翻译：解决PFC电容器减少线性AFLC RIPPLE而不使用被动滤波器的方法和装置
公开(公告)号：WO2016138847A1
公开(公告)日：2016-09-09
申请号：PCT/CN2016/075144
申请日：2016-03-01
申请人： EDGE ELECTRONS LIMITED
发明人： STEWART, Neal George , CHENG, Wing Ling
IPC分类号： H04B3/54 , H02M1/12
CPC分类号： H02J3/1828 , H04B3/54 , H04B3/542 , H04B3/546 , H04B2203/5416 , H04B2203/5491 , Y02E40/30
摘要： Audio Frequency Load Control (AFLC) signal processing electronics are provided, which added to a power factor correction (PFC) unit allowing the AFLC system to operate without the need of large and heavy passive bypass or blocking filters at the PFC installations. The AFLC signal processing electronics comprise a first group of additional electronics tuned to the AFLC frequency for detecting the AFLC carrier signal and a second group of additional electronics for driving an AFLC impedance switch (306) that is connected in parallel with an AFLC impedance (305). The AFLC impedance (305) is connected in series with the PFC capacitors (304), and is sufficiently large to offer significant impedance in series with the PFC capacitors (304) that allow the AFLC signal to bypass the PFC unit.
摘要翻译：提供了音频负载控制（AFLC）信号处理电子设备，它增加了功率因数校正（PFC）单元，允许AFLC系统在PFC安装时不需要大型和重型被动旁路或阻塞滤波器。 AFLC信号处理电子器件包括调谐到AFLC频率以检测AFLC载波信号的第一组附加电子装置和用于驱动与AFLC阻抗（305）并联连接的AFLC阻抗开关（306）的第二组附加电子装置）。 AFLC阻抗（305）与PFC电容器（304）串联连接，并且足够大以提供与允许AFLC信号绕过PFC单元的PFC电容器（304）串联的显着阻抗。

3. 发明申请

WO2019111080A1 SYSTEM AND METHOD FOR HIGH EFFICIENCY POWER QUALITY CORRECTION 审中-公开
公开(公告)号：WO2019111080A1
公开(公告)日：2019-06-13
申请号：PCT/IB2018/059115
申请日：2018-11-20
申请人： EDGE ELECTRONS LIMITED
发明人： ZAPATA, Jian Carlo Decena , CRUZAT, Efren II Santos , STEWART, Neal George , CURRIE, Gordon , CHENG, Wing Ling
IPC分类号： H02J3/18
摘要： : A high efficiency system for conducting power factor (PF) and harmonics correction in an electrical network, comprising a controller; a digital PFC capacitor array comprising two or more passive PFC capacitors, providing fine steps increments in the PF correction; and linear PFC capacitor arrays, providing coarse steps increments in the PF correction. The PF correction in coarse steps increments and fine steps increments allow a total or near total PF correction without overcompensation. Optionally, the system further comprises a lower power active power filter (APF) configured to only target and eliminate or minimize harmonics in the electrical network.

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