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Hybrid optimization algorithm for modeling and management of micro grid connected system

Kallol ROY,Kamal Krishna MANDAL

Frontiers in Energy 2014, Volume 8, Issue 3,   Pages 305-314 doi: 10.1007/s11708-014-0308-8

Abstract: In this paper, a hybrid optimization algorithm is proposed for modeling and managing the micro grid (multi-objective problem which consists of wind turbine (WT), photovoltaic (PV) array, fuel cell (FC), micro

Keywords： micro grid (MG)     multi-objective function     artificial bee colony (ABC)     fuel cost     operation and maintenance    

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Photocatalytic activity of ZnO films with micro-grid structure

Chunzhi LI , Wenwen WANG , Junying ZHANG , Hailing ZHU , Weiwei ZHANG , Tianmin WANG ,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 3,   Pages 289-293 doi: 10.1007/s11783-009-0034-3

Abstract: A layer of zinc oxide (ZnO) micro-grid was deposited on the surface of ZnO film using the DC reactiveThe micro-grid ZnO has a lower specular reflection and a higher diffuse reflection, allowing incidentPhotocatalytic degradation experiments on methylene blue using both ZnO micro-grid and ordinary filmshowed that the ZnO micro-grid has better photocatalytic properties than ordinary film.The ZnO micro-grid enhanced the photocatalytic efficiency of ZnO film by 28% with a degradation time

Keywords： Photocatalysis     ZnO micro-grid     polystyrene latex spheres template     diffuse reflection    

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Discussion About Influence of Microgrid Number on Microsegregation Simulation

Liu Yonggang,Sun Yu,Sun Guoxiong

Strategic Study of CAE 2004, Volume 6, Issue 2,   Pages 77-81

Abstract:

Micro simulation of solidification process is one of the focuses in material field, and simulationInfluence of micro time steps on microsegregation simulation results was investigated in this paper andit is pointed out that the relation between the micro time steps and the microsegregation simulationIt is not necessary for using a large number of micro grids to converge the calculated results.

Keywords： microsegregation     simulation     micro grid    

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Flexible micro flow sensor for micro aerial vehicles

Rong ZHU, Ruiyi QUE, Peng LIU

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 4,   Pages 539-545 doi: 10.1007/s11465-017-0427-0

Abstract:

This article summarizes our studies on micro flow sensors fabricated on a flexible polyimide circuitThe micro flow sensor has merits of flexibility, structural simplicity, easy integrability with circuitsIn our study, we install the fabricated micro flow sensors on micro aerial vehicles (MAVs) to detect

Keywords： micro flow sensor     flexible sensor     surface flow sensing     aerodynamic parameter     micro aerial vehicle (MAV    

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Theoretical Framework and Key Technologies of Transparent Power Grid

Li Licheng, Cai Zexiang, Tang Wenhu, Zhang Yongjun, Zhang Junbo, Wu Zhigang, Yang Lin, Han Yongxia, Guan Lin

Strategic Study of CAE 2022, Volume 24, Issue 4,   Pages 32-43 doi: 10.15302/J-SSCAE-2022.04.025

Abstract: be promoted to build a safe and efficient modern energy system; it is necessary to develop small and microThe transparent power grid relies on small and micro intelligent sensors for extensive collection andmode that integrates the production and sales of distributed and micro energy sources can transformIn the transparent grid, small and micro sensors are widely distributed, and many users rely on the cloudThe multi-parametric small and micro sensors in the transparent power grid perception layer provide the

Keywords： transparent power grid     energy ecosystem     new-type power system     energy transformation     micro sensors    

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Optimal placement of PMUs for the smart grid implementation in Indian power grid—A case study

Pathirikkat GOPAKUMAR, G. Surya CHANDRA, M. Jaya Bharata REDDY, Dusmata Kumar MOHANTA

Frontiers in Energy 2013, Volume 7, Issue 3,   Pages 358-372 doi: 10.1007/s11708-013-0257-7

Abstract: The concept of smart grid (SG) can provide a highly reliable power system with optimized utilizationThe present Indian power grid requires revolutionary changes to meet the growing demands and to makethe grid smarter and reliable.for SG is the instantaneous monitoring of the voltage, current and power flows at all buses in the gridThis paper proposes the optimal geographical locations for the PMUs in southern region Indian power grid

Keywords： phasor measurement units (PMUs)     smart grid (SG)     southern region Indian power grid (SRIPG)     integer linear    

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Optimal redundant placement of PMUs in Indian power grid — northern, eastern and north-eastern regions

Pathirikkat GOPAKUMAR, G. Surya CHANDRA, M. Jaya Bharata REDDY, Dusmata Kumar MOHANTA

Frontiers in Energy 2013, Volume 7, Issue 4,   Pages 413-428 doi: 10.1007/s11708-013-0274-6

Abstract: This can be envisioned through the implementation of concepts of smart grid (SG).One of the key requisites for SG implementation is that the grid should be completely observable.Renovation of conventional Indian power grid to a SG necessitates incorporation of the phasor measurementunits (PMUs) in the present power grid measurement and monitoring system.The results proposed in this paper can be a stepping stone for revamping the Indian power grid to a SG

Keywords： phasor measurement unit (PMU)     smart grid (SG)     Indian power grid     northern region Indian power grid (NRIPG)     eastern region Indian power grid (ERIPG)     north-eastern region Indian power grid (NERIPG)     redundancy    

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Dependence of error sensitivity of frequency on bias voltage in force-balanced micro accelerometer

Lili CHEN, Wu ZHOU

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 2,   Pages 146-149 doi: 10.1007/s11465-013-0260-z

Abstract:

To predict more precisely the frequency of force-balanced micro accelerometer with different biasBased on the theoretical results, micro accelerometer is fabricated and tested to study the influences

Keywords： Micro-Electro-Mechanical Systems (MEMS)     micro accelerometer     force-balanced micro accelerometer     frequency    

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Numerical simulation of micro scale flowing and boiling

Wen WANG, Rui ZHUAN,

Frontiers in Energy 2009, Volume 3, Issue 4,   Pages 396-401 doi: 10.1007/s11708-009-0049-2

Abstract: Numerical simulations of flowing and boiling in micro channels are presented, including the modelingThe simulated results also show the details of 3-dimensional heat transfer and the flow in micro channels, which are helpful to the investigation of the mechanism of two-phase heat transfer and flow in micro

Keywords： volume-of-fluid (VOF)     micro channel     nucleate boiling     bubble dynamics     simulation    

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Dynamical research on spherical micro actuator with piezoelectric ceramic stacks drivers

ZHANG Ruihua, CHEN Haichu

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 4,   Pages 433-438 doi: 10.1007/s11465-007-0074-y

Abstract: This paper develops a 30 mm × 30 mm × 50 mm spherical micro actuator driven by piezoelectric ceramicwith a micro-gripper based on the sample spherical micro actuator, and the experimental research onthe micro assembly is conducted between a micro shaft of 180 μm and a micro spindle sleeve of 200 μm.the metal sphere and the friction block of the micro driving unit are analyzed.micro operation and assembly for micro electro mechanical systems (MEMS) or other microelements in micro

Keywords： spherical     micro-gripper     friction coefficient     dynamic     frequency    

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Laboratory assessment of Alaska aggregates using Micro-Deval test

Jenny LIU,Sheng ZHAO,Anthony MULLIN

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 1,   Pages 27-34 doi: 10.1007/s11709-016-0359-5

Abstract: This paper presents a study to investigate the feasibility of using Micro-Deval test, commonly used inMicro-Deval test, Washington degradation test and other tests currently specified in Alaska were conductedBased on the testing results, it is found that using Micro-Deval test for durability assessment of Alaskaaggregates was feasible and reproducible, and a high potential was revealed to use Micro-Deval testIt is recommended that Micro-Deval test be considered as an additional test for a certain period, but

Keywords： aggregate durability     Washington degradation test     Micro-Deval test    

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Characterization of micro-mixing in a novel impinging streams reactor

Hui HU, Zhiming CHEN, Zhen JIAO

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 1,   Pages 58-64 doi: 10.1007/s11705-009-0106-8

Abstract: increase of flux, the decrease of inter-nozzle distance and a suitable circulation can improve the micro-mixingBased on turbulence theory, it was estimated that the characteristic micro-mixing time was 0.002—0.02The micro-mixing time was related to the segregation index, which was in good agreement with those in

Keywords： micro-mixing     impinging streams reactor     turbulent mixing     mass transfer    

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System resilience enhancement: Smart grid and beyond

Gang HUANG, Jianhui WANG, Chen CHEN, Chuangxin GUO, Bingquan ZHU

Frontiers of Engineering Management 2017, Volume 4, Issue 3,   Pages 271-282 doi: 10.15302/J-FEM-2017030

Abstract: Boosting the resilience of power systems is a core requirement of smart grids. In fact, resilience enhancement is crucial to all critical infrastructure systems. In this study, we review the current research on system resilience enhancement within and beyond smart grids. In addition, we elaborate on resilience definition and resilience quantification and discuss several challenges and opportunities for system resilience enhancement. This study aims to deepen our understanding of the concept of resilience and develop a wide perspective on enhancing the system resilience for critical infrastructures.

Keywords： critical infrastructure     cyber-physical systems     energy systems     resilience     smart grid    

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Integration of renewable energies, flexible loads and storages into the German power grid: Actual situation

Harald SCHWARZ, Xiaoshu CAI

Frontiers in Energy 2017, Volume 11, Issue 2,   Pages 107-118 doi: 10.1007/s11708-017-0470-x

Abstract: attractive over-funding, more than 1.5 million renewable generation units were connected to the German gridAccording to the EEG, renewable generation units can feed to the grid wherever they are located and whenevertolerable loading of lines or transformers respectively endangers the system stability in total, are German gridTherefore, a tremendous change is needed within the German power grid.

Keywords： grid integration     renewable energies     system stability     storages     flexible loads     new market design    

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Possible role of power-to-vehicle and vehicle-to-grid as storages and flexible loads in the German 110kV distribution grid

Erik BLASIUS

Frontiers in Energy 2017, Volume 11, Issue 2,   Pages 146-154 doi: 10.1007/s11708-017-0475-5

Abstract: traffic (in form of E-Mobility) and electrical energy supply (known as power-to-vehicle (P2V), vehicle-to-gridAt the same time, the E-mobility can help to reduce the negative effects of the grid integration of RESBecause per se unplanned and uncontrollable charging processes are harmful for the grid operation, especiallyperiods, the effects can hardly be controlled and can lead to serious technical problems in practical gridBy the combination of both sectors, the possible role of the E-mobility for the distribution grid will

Keywords： P2V     V2G     grid integration     electric vehicles     distribution grid    

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Title Author Date Type Operation

Hybrid optimization algorithm for modeling and management of micro grid connected system

Kallol ROY,Kamal Krishna MANDAL

Journal Article

Photocatalytic activity of ZnO films with micro-grid structure

Chunzhi LI , Wenwen WANG , Junying ZHANG , Hailing ZHU , Weiwei ZHANG , Tianmin WANG ,

Journal Article

Discussion About Influence of Microgrid Number on Microsegregation Simulation

Liu Yonggang,Sun Yu,Sun Guoxiong

Journal Article

Flexible micro flow sensor for micro aerial vehicles

Rong ZHU, Ruiyi QUE, Peng LIU

Journal Article

Theoretical Framework and Key Technologies of Transparent Power Grid

Li Licheng, Cai Zexiang, Tang Wenhu, Zhang Yongjun, Zhang Junbo, Wu Zhigang, Yang Lin, Han Yongxia, Guan Lin

Journal Article

Optimal placement of PMUs for the smart grid implementation in Indian power grid—A case study

Pathirikkat GOPAKUMAR, G. Surya CHANDRA, M. Jaya Bharata REDDY, Dusmata Kumar MOHANTA

Journal Article

Optimal redundant placement of PMUs in Indian power grid — northern, eastern and north-eastern regions

Pathirikkat GOPAKUMAR, G. Surya CHANDRA, M. Jaya Bharata REDDY, Dusmata Kumar MOHANTA

Journal Article

Dependence of error sensitivity of frequency on bias voltage in force-balanced micro accelerometer

Lili CHEN, Wu ZHOU

Journal Article

Numerical simulation of micro scale flowing and boiling

Wen WANG, Rui ZHUAN,

Journal Article

Dynamical research on spherical micro actuator with piezoelectric ceramic stacks drivers

ZHANG Ruihua, CHEN Haichu

Journal Article

Laboratory assessment of Alaska aggregates using Micro-Deval test

Jenny LIU,Sheng ZHAO,Anthony MULLIN

Journal Article

Characterization of micro-mixing in a novel impinging streams reactor

Hui HU, Zhiming CHEN, Zhen JIAO

Journal Article

System resilience enhancement: Smart grid and beyond

Gang HUANG, Jianhui WANG, Chen CHEN, Chuangxin GUO, Bingquan ZHU

Journal Article

Integration of renewable energies, flexible loads and storages into the German power grid: Actual situation

Harald SCHWARZ, Xiaoshu CAI

Journal Article

Possible role of power-to-vehicle and vehicle-to-grid as storages and flexible loads in the German 110kV distribution grid

Erik BLASIUS

Journal Article