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The smart grid is characterized by the proliferation of advanced digital controllers at all levels of its operational hierarchy from generation to end consumption. Such controllers within modern residential and commercial buildings enable grid operators to exercise fine-grained control over energy consumption through several emerging buildings-to-grid (B2G) applications. Though this capability promises...
Blockchain may help solve several complex problems related to securing the integrity and trustworthiness of rapid, distributed, complex energy transactions and data exchanges. In a move towards grid resilience, blockchain commoditizes trust and enables automated smart contracts to support auditable multiparty transactions based on predefined rules between distributed energy providers and customers...
Blockchain may help solve several complex problems related to integrity and trustworthiness of rapid, distributed, complex energy transactions and data exchanges. In a move towards resilience, blockchain commoditizes trust and enables automated smart contracts to support auditable multiparty transactions based on predefined rules between distributed energy providers and customers. Blockchain based...
This paper reviews factors that influence the aging of distribution transformers, including root causes of transformer failure. Existing and proposed load control methods are then reviewed. A distribution model is introduced to help evaluate potential control methods. Coping with transformer aging is an important challenge in power system. The nature of transformer loads is changing with the integration...
Selective Harmonic Elimination (SHE) is a well-known power electronics technique that is commonly used to suppress the noise harmonics in applications such as inverter design and AC Drives. But the existing methods are complex to be readily applied in real-time applications such as motor-control and frequency tuning. In addition, these methods involve tedious problem solving for each condition set...
A novel method has been proposed where selective harmonic elimination is achieved by comparing a modified reference signal against a high frequency carrier. A triangular or sinusoidal carrier can be used in its implementation. Unlike other selective harmonic elimination techniques, no on-the-fly signal processing is necessary. The tunability feature is similar to that of sine-triangle PWM generator...
SHE (Selective Harmonic Elimination) method does not allow elimination of harmonics in real time. The switching angles are calculated offline using iterative computations and programmed into a digital processor. In this paper we propose a novel harmonic elimination technique where real time modulation is used to eliminate the undesired harmonics. The method uses sine-sine modulation as a base model...
The paper proposes a harmonic elimination technique that is based on comparison modulation with a modified carrier. Typically, selective harmonic elimination method calculates the switching angles offline using iterative computations and programmed into a digital processor. Here we are advancing a modulation-based harmonic elimination technique to remove the unwanted harmonics. It is a novel PWM method...
The paper proposes a class of switching modulators with reduced harmonics to allow a wide base band. In an ordinary switching modulator, the harmonics are rich and the operating bandwidth is rather limited. Here we are advancing a harmonic elimination technique to place the unwanted harmonics at a frequency farther away from the fundamental. It is a novel PWM method where a reference sinusoid with...
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