smart transformer for smart grid
Unlocking the Hidden Capacity of the Electrical Grid Through Smart ...
In the case of large charging stations, a smart transformer (ST), while, in the case of large solar and wind parks, integration medium- or high-voltage direct current (HVdc) transmissions are system-level solutions. ... they can offer new "smart grid" tools to enhance the capability of the existing electric grid infrastructures. ...
Impact of smart transformer voltage and frequency support in a …
Instead of increasing the supply, the smart transformer (ST), with a fast response, offers the possibility to dynamically regulate the demand. This paper investigates the use of an ST to dynamically control reactive power and demand to support voltage and frequency respectively in the grid. The demand is controlled dynamically to emulate inertia.
11 Smart distribution transformers
BOX 3.10 Smart transformer terminals facilitate EV charging in China. In 2021, China started to pilot the application of the smart power distribution transformer terminal to support optimal EV charging. The terminal creatively uses architecture comprising a common hardware platform, an edge operating system and app-based service …
Study Finds ''Smart'' Transformers Could Make Reliable Smart Grid …
Matt Shipman matt_shipman@ncsu 919.515.6386. A new study using complex computational models finds that smart solid-state transformers (SSTs) could be used to make a stable, reliable "smart grid" – allowing the power distribution system to route renewable energy from homes and businesses into the power grid.
Operation and control of smart transformer based distribution grid in …
The smart transformer (ST) has been studied extensively in recent years exploring its capabilities in the modern electric grid. Concentrating on the low voltage (LV) side of an ST, this paper proposes a grid structure where a photovoltaic (PV) system and battery energy storage system (BESS) are interfaced to the ST LV DC link. The LV AC grid consists of …
The Smart Transformer: A solid-state transformer tailored to …
The solid-state transformer (SST) was conceived as a replacement for the conventional power transformer, with both lower volume and weight. The smart transformer (ST) is an SST that provides ancillary services to the distribution and transmission grids to optimize their performance. Hence, the focus shifts from hardware …
Are Your Transformers Ready for the Smart Grid?
Transformer manufacturers see an increased emphasis on online transformer monitoring, but today''s transformers are, for the most part, not ready for tomorrow''s smart grid. The first reason for this is because transformers have a long useful life expectancy, generally 20 to 30 years of service.
Towards a smart distribution transformer for smart grid | IEEE ...
The smart distribution transformer will satisfy the various needs of the present and future distribution smart grid such as improved availability, equipment protection, and resilience. This paper provides detailed analysis, simulation results and experimental results from a scaled down laboratory prototype rated 200 W are also presented to ...
Overload Control in Smart Transformer-Fed Grid
The smart transformer (ST) is a power electronics-based transformer that aims not only at adapting the voltage level from medium voltage (MV) to low voltage (LV), but at providing new services to the distribution grids: load identification and control [6,7], reverse power flow controller, reactive power support in MV grid, power management in ...
Smart Distribution Transformer for Smart Grid
The smart distribution transformer will satisfy the various needs of the present and future distribution smart grid such as improved availability, equipment protection, and resilience. In this thesis, detailed analysis, simulation and experimental results are discussed to validate the proposed smart distribution transformer. URI https://hdl ...
Solid‐state transformers: An overview of the concept, topology, …
As said before, the solid-state transformer (SST) is offered as a tool to meet the requirements of the smart grid. Solid-state transformers are comprised of three primary parts: converter to produce high-frequency AC from input line frequency AC, isolation by a high-frequency transformer (HFT), and at last, converter to produce AC …
Robust Control of Smart Transformer-fed Grid
The Smart Transformer (ST) is a solid-state transformer with control and communication functionalities, interfacing medium voltage and low voltage (LV) grids. The ST-fed grid has high potential to optimize power system and avoid or postpone the reinforcement of distribution networks. However, with the increasing utilization of power converters, the …
Performance study of smart transformer based on Backstepping …
This paper proposes a Backstepping-Sliding Mode Control (BS-SMC) design with the aim to improve the dynamic performance of the Smart Transformer (ST) in the distribution grid. This controller combines both Backstepping and Sliding Mode controller''s advantages. Moreover, to mitigate the chattering phenomenon of the SMC, an …
Distribution Transformer Monitoring for smart grid in India
This paper introduces the Distributed Transformer Monitoring System using Field Programmable Gate Array based technology integrated with wireless communication modules and its utilization for a smart grid. It consists of network of sensors and energy meters. The whole architecture and the hardware & software flow of the system have …
Analysis and Stabilization of a Smart Transformer-Fed Grid
Abstract: The stability of the grid-connected inverters adopted in distributed energy resources (DERs) highly depends on the characteristics of the grid impedance. Hence, various active damping methods and adaptive control algorithms have been proposed for the control of the grid inverters. Differently from those existing solutions, this …
Grid Identification and Adaptive Voltage Control in a Smart Transformer ...
The interaction of the smart transformer (ST) with the grid-converter-based distributed energy resources (DERs) could trigger instability. Recent research efforts have been made to study the stability issues of the DERs in an ST-fed grid and the corresponding stabilization methods. Differently from the previous investigation focused on the DERs'' …
Smart Transformers as the Central Control Point in Distribution Grids
Figure 1b. Configuration of ST-based distribution systems. The Smart Transformer (ST) solution (Figure 1 (b)), a solid-state transformer-based transformer, introduces higher grid controllability. It provides DC connectivity to loads and generators and at the same time saves the infrastructure cost avoiding extensive grid upgrades [1].
Smart Transformer for Smart Grid—Intelligent Framework and Techniques ...
Condition monitoring and diagnosis have become an essential part of power transformer asset management. A variety of online and offline measurements have been performed in utilities for evaluating different aspects of transformers'' conditions. However, properly processing measurement data and explicitly correlating these data to …
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