| Mitigation of Adverse Effects of Geomagnetically Induced Currents on Transformers | Geomagnetically induced currents (GIC) are quasi-dc currents and consequently cause saturation of transformers which may be overheated and, in the worst case, be permanently damaged. Therefore, the mitigation of GIC effects on power transformers is very important. Conventional approaches to mitigate the GIC are expensive and have no sophisticated control mechanism. This invention proposes to design a novel and cost-efective methof of mitigating the adverse effects of geomanetic induced current (GIC) on power transformers by using fuzzy logic controlled variable resistor to be connected at the neutral of the transformers. Another advantage of the proposed method is that it can minimize the zero sequence current flowing through the neural of transformers during any unbalanced faults in the power network. | 10530144 |
| Mitigation of Adverse Effects of Geomagnetically Induced Currents on Transformers | Geomagnetically induced currents (GIC) are quasi-dc currents and consequently cause saturation of transformers which may be overheated and, in the worst case, be permanently damaged. Therefore, the mitigation of GIC effects on power transformers is very important. Conventional approaches to mitigate the GIC are expensive and have no sophisticated control mechanism. This invention proposes to design a novel and cost-efective methof of mitigating the adverse effects of geomanetic induced current (GIC) on power transformers by using fuzzy logic controlled variable resistor to be connected at the neutral of the transformers. Another advantage of the proposed method is that it can minimize the zero sequence current flowing through the neural of transformers during any unbalanced faults in the power network. | 10243346 |
| Spatially-Selective Reflector Structures, Reflector Disks, and Systems and Methods For Use Thereof | The invention provides a spatially-selective reflective structure for the detection of submillimeter electromagnetic waves and systems and methods incorporating spatially-selective reflective structures | 9297693 |
| Spatially-Selective Disks, Submillimeter Imaging Devices, Methods of Submillimeter Imaging, Profiling Scanner, Spectrometry Devices, and Methods of Spectrometry | The invention consists of a spatially selective mask device for submillimeter waves and of the methods used to reconstruct the desired information from measurement made with the help of the device and a single pixel submillimeter wave detector. | 8780345 |
| Spatially-Selective Reflector Structures, Reflector Disks, and Systems and Methods For Use Thereof | The invention provides a spatially-selective reflective structure for the detection of submillimeter electromagnetic waves and systems and methods incorporating spatially-selective reflective structures. | 8508592 |
