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DC Microgrid Invention Patent


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Power quality of service optimization for microgrids

A method for designing feedforward and feedback controllers for integration of stochastic sources and loads into a nonlinear networked AC/DC microgrid system is provided.

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Frontiers | Comparative analysis and implementation

Patents were based on the AC Distribution Scheme and supported by Westinghouse Electric and Manufacturing Company. The findings of Tesla widely affected the superiority of the AC system in the BATTLE OF

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US20150333512A1

the present invention may: 1) showcase the viability and optimize the performance of a building-level DC microgrid subsystem, 2) validate the efficiency improvements of DC-powered components relative to conventional AC components when powered by PV, 3) showcase the DC microgrid system''s impact on energy security by providing backup power for mission-critical

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Research on Hierarchical Control Strategy of AC/DC Hybrid Microgrid

The AC/DC hybrid microgrid has a large-scale and complex control process. It is of great significance and value to design a reasonable power coordination control strategy to maintain the power balance of the system. Based on hierarchical control, this paper designs a reasonable power coordination control strategy for AC/DC hybrid microgrid. For lower control, this paper

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US10020656B2

the present invention may: 1) showcase the viability and optimize the performance of a building-level DC microgrid subsystem, 2) validate the efficiency improvements of DC-powered components relative to conventional AC components when powered by PV, 3) showcase the DC microgrid system''s impact on energy security by providing backup power for mission-critical

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The War of the Currents: DC vs. AC

DC microgrids may bridge this gap by being able to distribute and use DC directly, avoiding the round trip from DC to AC and then back to DC again. DC microgrids for the future. With growing need for energy efficiency and reducing greenhouse gas emissions, DC microgrids may provide a critical key to moving towards a more sustainable energy

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US9172249B2

A microgrid controller may control the generation, distribution, storage and use of electrical power on a microgrid. 2011-08-12 Priority to US13/208,834 priority Critical patent/US9172249B2/en control module 138 Also connected to the DC power bus 128 of the microgrid controller 125 is a control module 138,

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US20130041516A1

A microgrid controller may control the generation, distribution, storage and use of electrical power on a microgrid. 2011-08-12 Priority to US13/208,834 priority Critical patent/US9172249B2/en control module 138 Also connected to the DC power bus 128 of the microgrid controller 125 is a control module 138,

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US20200393864A1

A device includes an energy unit coupled to an energy device and adapted to couple a pair of split DC rails. A controller senses the voltage on the DC rails and regulates its output current...

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Afshin Majd Inventions, Patents and Patent Applications

Abstract: A microgrid power system includes a power module configured to generate direct current (DC) power, an inverter module having a DC side and an AC side, and configured to invert DC power received from the power module on the DC side and output alternating current (AC) power on the AC side, a DC bus electrically connecting an output of

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Lab Partnering Service

A method for designing feedforward and feedback controllers for integration of stochastic sources and loads into a nonlinear networked AC/DC microgrid system is provided. A reduced order model for general networked AC/DC microgrid systems is suitable for HSSPFC control design. A simple feedforward steady state solution is utilized for the feedforward

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US Patent for Method and apparatus for photovoltaic DC direct

The present invention discloses a method and apparatus for photovoltaic DC direct-fed power generation based on controllable power supply. According to the present

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New AC/DC Hybrid Microgrid to be Built in Singapore

The AC/DC hybrid microgrid will include a variety of on-site and remote renewable energy resources, including energy storage technologies and electric vehicle (EV) charging stations. It will also include a new district cooling network that will serve NUS'' University Hall and surrounding buildings. The cooling network will employ thermal

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US8970176B2

Systems and methods are provided for creating and operating a Direct Current (DC) micro-grid. A DC micro-grid may include power generators, energy storage devices, and loads coupled to a common DC bus. Power electronics devices may couple the power generators, energy storage devices, and loads to the common DC bus and provide power transfer.

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Current OS DC Microgrids N470 road application

DC Microgrids . N470 road application. Authors: Harry Stokman, Ronald Niehoff, Yannick Neyret . He is the inventor of Current OS Protocol based on 350V DC and 700V DC. He received multiple awards for his work in the He owns 19 patents, mainly in (DC) circuit breakers and RCD technology. Since 2014, Ronald spends most of the time on

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US20180366948A1

the present invention proposes an energy management method that utilizes DC voltage signaling to provide indirect communication between local controllers, to provide battery state-of-charge balancing, overcharge protection and undercharge that incorporates variable battery and generation source current limiters. Furthermore, this method is capable of providing offset

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Power distribution system based on AC/DC micro-grid

The invention discloses a power distribution system based on an alternating current/direct current micro-grid, and mainly relates to the technical field of optical storage. The system comprises a mains supply power grid, wherein the mains supply power is supplied to the mains supply based on an alternating current bus; the direct current micro-grid operates based on photovoltaic

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CN104578367A

The invention relates to a direct-current microgrid power distribution controller design method based on a passivity theory. The method comprises the following steps that (1) a fuel cell mathematic model is built; (2) the inductive current and capacitor voltage of a control circuit are adopted as system state variables, and a state space model of a direct-current microgrid is

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Modeling, Control and Protection of Low-Voltage DC Microgrids

a dc microgrid for data centers," in Conf. Rec. IEEE Industry Applications Society Annual Meeting, New Orleans, LA, Sep. 23{27 2007, pp. 2414{2421. The inventor Thomas A. Edison was shown an arc light system in Boston in 1878, In 1885 George Westinghouse incorporated the patents of the Gaulard and Gibbs ac transformer with his company

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US Patent Application for VOLTAGE SHARING OF

This invention relates to plug-and-play direct current ("DC") microgrids and more particularly relates to voltage sharing of series connected battery modules in a plug-and-play

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Energy Storage Systems For Electrical Microgrids With Pulsed

The present invention relates to electrical microgrids and, width operations, batteries with lower bandwidths and in particular, to energy storage systems for electrical micro higher energy

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US20130015703A1

The present invention provides a microgrid for use with one or more power sources such as grid interconnections. In various embodiments, the microgrid is designed to receive power from at...

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AC-DC hybrid microgrid system

An AC-DC hybrid, DC micro-grid technology, applied in AC network circuits, AC networks with the same frequency from different sources, electrical components, etc., can solve the problem that

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US20130041516A1

In one embodiment, DC-to-DC conditioner utilizes one or more DC-to-AC inverters and one or more AC-to-DC rectifiers to convert DC inputs of varying voltage to one or more output voltages...

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Patents by Inventor HYEONG JUN YOO

Abstract: The present invention relates to a voltage source converter based DC connection method and a control method for implementing a system for maintaining respective different frequencies (multi-frequencies) by reflecting load quality levels of respective microgrids when multiple stand-alone microgrids are connected to each other in which voltage source

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Microgrid patented technology retrieval search results

This page includes the patent name, patent number, legal status, invention/applicant, technical efficacy and accompanying drawings of Microgrid-related invention patents and utility model patents, which can be searched for their Microgrid-related patent result data, and can also be analyzed for Microgrid-related patent technical data.

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Renewable energy integration with DC microgrids: Challenges

The RESs are generally distributed in nature and could be integrated and managed with the DC microgrids in large-scale. Integration of RESs as distributed generators involves the utilization of AC/DC or DC/DC power converters [7], [8].The Ref. [9] considers load profiles and renewable energy sources to plan and optimize standalone DC microgrids for rural

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US Patent for Method to provide meta-stable operation of a DC microgrid

The present invention relates to electrical microgrids and, in particular, to a method to provide meta-stable operation of a DC microgrid having a pulsed load. BACKGROUND OF THE INVENTION The electric warship is an enabling technology to enhance propulsion, add flexibility and adaptability to energy routing in the ship and to eliminate the need to carry

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US Patent Application for DC MICROGRID FOR

A device includes an energy unit coupled to an energy device and adapted to couple a pair of split DC rails. A controller senses the voltage on the DC rails and regulates its output current

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US20200183435A1

2020-02-13 Priority to US16/790,199 priority Critical patent/US20200183435A1/en In one embodiment of the invention, at least one intelligent microgrid-coordinator device is installed on the microgrid premises. This microgrid coordinator contains the software necessary to keep a record of all load-consuming assets and load-generation

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Renewable energy-based hybrid bi-directionally interactive DC

The renewable energy-based hybrid bi-directionally interactive DC traction power supply system of the invention is based on a DC microgrid formed by a distributed generation, an electric vehicle charging-discharging system mainly featured in battery swapping and a bidirectional AC-DC grid connected converter. Free format text: PATENT

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FREEDM Inventions and Patents Calendar Year 2022

FREEDM Inventions and Patents Calendar Year 2022 Invention/Patent ID Title FREEDM Inventors Systems/Electric Vehicles in a DC Microgrid Subhashish Bhattacharya Invention 2023‐046 An Air Gap‐Integrated Capacitive Power Transfer System for Field Excitation of Wound Field Synchronous Machine

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CN105337306A

Architecture design for new AC-DC hybrid micro-grid: CN104022527B (en) 2016-02-17: Direct current micro-grid system CN103532214A (en) 2014-01-22: Photovoltaic power generation system structure integrating energy storage and grid-connected and off-grid power supply functions and control method Invention patent application deemed withdrawn

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US Patent Application for VOLTAGE SHARING OF

CROSS-REFERENCE TO RELATED APPLICATIONS. This application claims the benefit of U.S. Provisional Patent Application No. 63/040,431 entitled "VOLTAGE SHARING OF SERIES CONNECTED BATTERY MODULES IN A PLUG-AND-PLAY DC MICROGRID" and filed on Jun. 17, 2020 for Mohamed Ahmed Kamel Ahmed et al., which is incorporated herein

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Fuzzy control-based direct-current microgrid multi-source

The invention relates to a fuzzy control-based direct-current microgrid multi-source dynamic coordinated control method. A direct-current microgrid comprises a plurality of parallel BDDC (Bidirectional DC / DC converter) units.According to the method, a droop control method is adopted to control converters in each BDDC units, a fuzzy controller is adopted to

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US20120299386A1

A controller senses the voltage on the DC rails and regulates its output current response by means of an autonomous current response that creates the aggregate effect of controlling the rail...

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Power management concept in DC distributed systems

The invention describes a method for the operation and control of a DC microgrid system to achieve, in addition to DC bus voltage regulation, a secondary performance function such as energy management using only the DC bus voltage as means of communication.

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Jie Wang-Smart Energy Innovation Institute

The 16th IET International Conference on AC and DC Power Transmission (ACDC 2020), 2020, pp. 877-882. Future Energy Plan Joint Research Fund, Interconnected AC/DC Microgrid Energy Routing Technology and Equipment for High Ratio New Energy, 2022.03-2025.12, 4.2 million, Participant Invention Patent. 1. Inertia Power Adaptive Control

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DC Microgrids: Benefits, Architectures, Perspectives and

One of the major paradigm shifts that will be predictably observed in the energy mix is related to distribution networks. Until now, this type of electrical grid was characterized by an AC transmission. However, a new concept is emerging, as the electrical distribution networks characterized by DC transmission are beginning to be considered as a promising solution due

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Power Electronic Converters for Microgrids

In a DC microgrid, power electronic converters are used to convert. AC power or DC power with different voltages into DC power with the same. 1. voltage as the DC bus of the DC microgrid.

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About DC Microgrid Invention Patent

About DC Microgrid Invention Patent

As the photovoltaic (PV) industry continues to evolve, advancements in DC Microgrid Invention Patent have become critical to optimizing the utilization of renewable energy sources. From innovative battery technologies to intelligent energy management systems, these solutions are transforming the way we store and distribute solar-generated electricity.

About DC Microgrid Invention Patent video introduction

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