Today's distribution system is expected to supply power to loads for which it was not designed. Moreover, high penetration of distributed generation units is redefining the requirements for the design, control and operation of the electric distribution system. A Hybrid Distribution Transformer is a potential cost-effective alternative solution to various distribution grid control devices. The Hybrid Distribution Transformer is realized by augmenting a regular transformer with a fractionally rated power electronic converter, which provides the transformer with additional control capabilities. The Hybrid Distribution Transformer concept can provide dynamic ac voltage regulation, reactive power compensation and, in future designs, form an interface with energy storage devices. Other potential functionalities that can be realized from the Hybrid Distribution Transformer include voltage phase angle control, harmonic compensation and voltage sag compensation. This paper presents the concept of a Hybrid Distribution Transformer and the status of our efforts towards a 500 kVA, 12.47 kV/480 V field demonstrator.

Hybrid distribution transformer: Concept development and field demonstration

According to various embodiments, a system includes a power center or other electrical system. The system includes an enclosure having a ventilation opening and an isolation assembly. The isolation assembly includes a deformable portion and a blocking portion. The blocking portion is capable of substantially blocking the ventilation opening with a blocking surface. The deformable portion is configured to deform due to a level of pressure being applied to the isolation assembly such that the deformable portion plastically deforms and carries the blocking surface toward the ventilation opening.

System and method for ventilating and isolating electrical equipment

With the rise of smart grid technologies, the interdependencies of ICT and power systems become increasingly important in both transmission and distribution networks. For the design of time-critical applications, simulation tools for an integrated analysis of these domains are needed. In the case of electrical transmission systems, high-performance ICT solutions and fast controllable power equipment enable a new era of dynamic power system operation whereas applications for this purpose need to be investigated with a special focus on their real-time performance. This invention presents a novel, modular co-simulation environment for comprehensive analysis of mutual effects, taking into account communication networks, IT processing and power system response. The invention relates to a computer implemented method for hybrid simulation of an electric power distribution network (1) and an associated communication network (2, 5a, 5b, 5c) connected therewith for determination of a time delay between an event occurring in the power distribution network (1) and a desired effect of a performed measure in the power distribution network (1), the measure having been decided on by means of a decision making algorithm as a reaction to the event. This hybrid simulation environment has been developed with a focus on the evaluation of the real-time performance of wide-area monitoring, protection and control (WAMPAC) applications, nonetheless, it is applicable to a variety of smart grid applications in transmission and distribution networks. A highly flexible simulation environment is provided to enable development of applications close to industrial implementation.

Computer implemented method for hybrid simulation of power distribution network and associated communication network for real time applications

A hybrid distribution transformer is provided that includes an electromagnetic transformer and a voltage source converter that is operable to reduce fluctuation in the output voltage of the hybrid distribution transformer in the event of an increase or decrease in the input voltage.

A hybrid distribution transformer with an integrated voltage source converter

An electrical distribution grid energy management and router device, or GER device, may be installed at the edge of a distribution grid, An electrical distribution grid energy management and router device, or GER device, may be installed in a distribution grid, and route power from power supply to one or more power consumers. The GER devices described herein may provide platforms to add one or more features to a distribution transformer, provide additional features and benefits to both the utility company and end consumer, and may serve as a platform for providing other features, such as communications services, local and remote management, and intelligence to components of the distribution grid. A GER device may include sensors to measure electrical properties of incoming and outgoing power, and may include an electrical circuit layer having a central DC power stage. A GER device may include a physical layer providing a communications platform for one or more communication devices that may communicate with other GER devices to form a micro-grid, a utility, power consumers, third parties, and other electrical devices.

Highly flexible, electrical distribution grid edge energy manager and router

A hybrid transformer is provided that includes an electromagnetic transformer and an AC-AC converter with a DC bridge. The AC-AC converter is operable to keep the input voltage and current of the hybrid transformer substantially in phase and to reduce fluctuation in the output voltage of the hybrid transformer in the event of an increase or decrease in the input voltage.

A hybrid distribution transformer with ac & dc power capabilities

Arc resistant enclosures for dry-type transformers. More particularly, transformer enclosures having one or more arc-resistant features, including arc channels, arc fault dampers, and arc fault plenums, and methods for providing same.

Method of providing arc-resistant dry type transformer enclosure

Arc-resistant dry type transformer enclosure having arc channels

Arc-resistant dry type transformer enclosure having arc fault damper apparatus

A hybrid transformer is provided that includes an electromagnetic transformer and an AC-AC converter with a DC bridge The AC-AC converter is operable to keep the input voltage and current of the hybrid transformer substantially in phase and to reduce fluctuation in the output voltage of the hybrid transformer in the event of an increase or decrease in the input voltage

Rafael Gutierrez

Papers

A hybrid distribution transformer with ac & dc power capabilities

Method of providing arc-resistant dry type transformer enclosure

Arc-resistant dry type transformer enclosure having arc channels

Arc-resistant dry type transformer enclosure having arc fault damper apparatus

Hybrid distribution transformer having a power electronic module for controlling input power factor and output voltage