scholarly journals Research on Hybrid Microgrid Based on Simultaneous AC and DC Distribution Network and Its Power Router

Energies ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 1077 ◽  
Author(s):  
Xinnan Gai ◽  
Yali Wang ◽  
Renliang Chen ◽  
Liang Zou
Keyword(s):  
Power Distribution ◽  
Distribution Systems ◽  
Distribution Network ◽  
Power Distribution Network ◽  
Operating Modes ◽  
Hybrid Microgrid ◽  
Dc Power ◽  
New Energy ◽  
Operation Control ◽  
Routing Control

Under the dual pressure of environmental pollution and energy crisis, the global energy consumption structure reform deepens unceasingly and the concept of energy internet has developed rapidly. The widespread volatility, randomness, and uncertainty of distributed new energy generation impose new requirements on distribution systems. The zigzag transformer is used as the coupling and isolating device for simultaneous AC–DC transmission. The basic principle and structure of simultaneous AC–DC power distribution network is analyzed. The topology structure of the simultaneous AC–DC hybrid microgrid and basic operating principle of the microgrid under different operating modes are proposed for the distributed power grid technology. Combined with power electronic technology, a modular multi-interface structure of power routers applied to AC–DC hybrid microgrid and its control strategy are proposed to realize the power routing control of microgrid and ensure reliable operation control of the microgrid. By building the model of simultaneous AC–DC hybrid microgrid and its power router, the rationality and effectiveness of the power router for microgrid routing control are verified.

scholarly journals “Triple-Alls” Distribution Network Information Model and Platform Design

2020 ◽  
Vol 186 ◽  
pp. 02001
Author(s):  
Jianfeng Wang ◽  
Liang Chen ◽  
Liqin Shi ◽  
Dao’an Zhang ◽  
Hao Liu
Keyword(s):  
Power Distribution ◽  
Large Scale ◽  
Distribution Network ◽  
Distribution Networks ◽  
Information Model ◽  
Power Distribution Network ◽  
Platform Design ◽  
Network Information ◽  
Sensing Technology ◽  
New Energy

In recent years, large-scale new energy sources have been connected to the power distribution network, and the ubiquitous power IoT sensing technology has developed rapidly. At the same time, the increase in energy consumption has placed higher requirements on the consumption of new energy, which has led to the “Triple-Alls” (All access, All sensing, All consumption) requirements of the distribution network. To this end, this paper conducts a series of studies on the “Triple-Alls” distribution network: First, it analyzes the characteristics and key technologies of the “Triple-Alls” distribution network by comparing with traditional distribution networks, and then establishes energy storage, photovoltaic, and wind power. Information model of “Triple-Alls” distribution network. Then, a platform design scheme meeting the requirements is constructed. Finally, the application functions of “All access”, “All sensing” and “All consumption” in the distribution network are explained in detail.

Layered Model Algorithm and its Application in Fault Detection of Power Distribution Network

2014 ◽  
Vol 644-650 ◽  
pp. 2577-2580
Author(s):  
Xiao Quan Li ◽  
Shuai Liu ◽  
Wei Qun Yang
Keyword(s):  
Fault Detection ◽  
Power Distribution ◽  
Distribution System ◽  
Distribution Systems ◽  
Distribution Network ◽  
Source Distribution ◽  
Power Distribution Network ◽  
Layered Model ◽  
The One ◽  
Model Algorithm

In the case that a single fault occurs on a power feeder in the one-source distribution system, the directional layered model of the network which reflects the layered topological characteristic of the network was built up. Then a new algorithm for fault detection in power distribution network was proposed to locate the faulty sections in distribution feeder network. The algorithm itself as well as its program design is simple. It can be applied to complex distribution systems with multi-sources. It is proved correct by an example.

A Stochastic Model Based on Markov Chain to Support Vehicle-to-Grid (V2G) Operation in Smart Distribution Network

2019 ◽  
Vol 20 (3) ◽  
Author(s):  
Santoshkumar Hampannavar ◽  
Udaykumar R. Yaragatti ◽  
Suresh Chavhan
Keyword(s):  
Power Distribution ◽  
Distribution Systems ◽  
Distribution Network ◽  
Optimal Placement ◽  
Voltage Profile ◽  
Power Losses ◽  
Power Distribution Network ◽  
Vehicle To Grid ◽  
Communication Framework ◽  
Smart Distribution Network

Abstract In this paper a multiagent based communication framework for gridable electric vehicle (GEV) aggregation in power distribution network is proposed. Also, multi objective optimization is presented for the minimization of power losses and maximization of voltage. Furthermore multiagent system (MAS) based analytical model is proposed for GEV aggregation. Comprehensive case studies are conducted on IEEE 33 and 69 bus test distribution systems using MATLAB and it is observed that the timely and optimal placement of GEV aggregation in distribution network using multiagent communication (MAC) will lead to reduction in power losses and improvement in voltage profile. MATLAB and MOBILE C were used for the simulation studies and results demonstrate significant benefits of GEV aggregation in distribution network.

Design and Implementation of Three-Winding Coupled Inductor and Switched Capacitor-Based DC–DC Converter Fed PV-TDVR

2019 ◽  
Vol 28 (09) ◽  
pp. 1950158 ◽  
Author(s):  
M. Kumar ◽  
S. Ramesh
Keyword(s):  
Power Distribution ◽  
Single Phase ◽  
Distribution Network ◽  
High Gain ◽  
Prototype Model ◽  
Power Distribution Network ◽  
Dynamic Voltage Restorer ◽  
Operating Modes ◽  
Dynamic Voltage ◽  
Voltage Swell

This paper presents a three-winding coupled inductor-based high-gain DC–DC converter fed transformerless dynamic voltage restorer (TDVR) to compensate the voltage sag, voltage swell and interruption in the single-phase power distribution network. The TDVR supported by the cascaded DC–DC boost converters offers high boosting gain. The cascaded connection of DC–DC converters reduces the efficiency due to the usage of more active and passive devices. The proposed PV-TDVR is designed to provide higher efficiency by reducing the number of power conversion stages with reduced numbers of active and passive components. The operating modes of the proposed PV-TDVR are presented in a comprehensive way. The MATrix LABoratory (MATLAB) simulation and 1-kV prototype model results are presented to analyze the performance of PV-TDVR in mitigating the voltage disturbances in the single-phase power distribution network.

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