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Multi-time scale dynamics in power electronics-dominated power systems

Xiaoming YUAN, Jiabing HU, Shijie CHENG

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 3,   Pages 303-311 doi: 10.1007/s11465-017-0428-z

Abstract:

Electric power infrastructure has recently undergone a comprehensive transformation from electromagneticsSuch a development is attributed to the rapid growth of power electronic converter applications in theload side to realize energy conservation and on the supply side for renewable generations and powerThis transformation has altered the fundamental mechanism of power system dynamics, which demands theestablishment of a new theory for power system control and protection.

Keywords： power electronics     power systems     multi-time scale dynamics     mass-spring-damping model     self-stabilizingand en-stabilizing property     multi-time scale power system stabilizer    

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Impact of wind power generating system integration on frequency stabilization in multi-area power system

Y. K. BHATESHVAR,H. D. MATHUR,H. SIGUERDIDJANE

Frontiers in Energy 2015, Volume 9, Issue 1,   Pages 7-21 doi: 10.1007/s11708-014-0338-2

Abstract: Among the available options for renewable energy integration in existing power system, wind power isThe major constraint of wind power generating system (WPGS) is that it does not provide inertial supportactive power support in a two area restructured power system.on frequency stabilization in restructured power system scenario.Variation of load conditions are also analyzed in simulation studies for the same power system model

Keywords： two area power system     automatic generation control     wind power generating system (WPGS)     deregulated environment    

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Active-reactive power scheduling of integrated electricity-gas network with multi-microgrids

Frontiers in Energy 2023, Volume 17, Issue 2,   Pages 251-265 doi: 10.1007/s11708-022-0857-1

Abstract: flow in the power distribution network (PDN) and the natural gas flow in the gas distribution networkThis paper proposes a day-ahead active-reactive power scheduling model for the IEGN with multi-microgridscoupling relationship between the subsystems of the IEGN, the potentialities of the IEGN with MMGs toward multi-energyBesides, motivated by the non-negligible impact of the reactive power, optimal inverter dispatch (OIDA test system consisting of an IEEE-33 test system and a 7-node natural gas network is adopted to verify

Keywords： combined cooling     heating     and power (CCHP)     integrated energy systems (IES)     natural gas     power distributionsystem     gas distribution system    

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Decreasing complexity of glucose time series derived from continuous glucose monitoring is correlated

Frontiers of Medicine 2023, Volume 17, Issue 1,   Pages 68-74 doi: 10.1007/s11684-022-0955-9

Abstract: Most information used to evaluate diabetic statuses is collected at a special time-point, such as takingBy calculating the complexity of glucose time series index (CGI) with refined composite multi-scale entropyanalysis of the CGM data, the study showed for the first time that the complexity of glucose time series

Keywords： complexity of glucose time series     continuous glucose monitoring     impaired glucose regulation     insulinsecretion and sensitivity     refined composite multi-scale entropy    

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Optimal dispatch of multi energy system using power-to-gas technology considering flexible load on user

Zi LING, Xiu YANG, Zilin LI

Frontiers in Energy 2018, Volume 12, Issue 4,   Pages 569-581 doi: 10.1007/s11708-018-0595-6

Abstract:

The relation between power-to-gas technology (P2G) and energy interconnection becomes increasinglysystem model using the P2G technology.dispatch the flexible load, to reduce the discharge, to enhance the new energy output, and to increase the power-to-gasFinally, a concrete analysis was made on the optimal dispatch result of the multi-energy system usingThe results indicate that cooperative dispatch of multi-energy system using the P2G technology considering

Keywords： multi-energy system     energy hub     series characteristic     optimal dispatch     flexible load    

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On the added value of multi-scale modeling of concrete

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 1,   Pages 1-23 doi: 10.1007/s11709-021-0790-0

Abstract: This review of the added value of multi-scale modeling of concrete is based on three representative examplesThe structural nature of the high-dynamic strength increase can be explained by using a multi-scale modelThe second example refers to multi-scale thermoelastic analysis of concrete pavements, subjected to solarThe third example deals with multi-scale structural analysis of a real-scale test of a segmental tunnelOverall, it is concluded that multi-scale models have indeed a significant added value.

Keywords： experiments     multi-scale analysis     conventional structural analysis     concrete     reinforced concrete    

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large-scale non-grid-connected wind power system

Fang Min,Kong Xiangwei,Shi Jianzhong and Gu Weidong

Strategic Study of CAE 2015, Volume 17, Issue 3,   Pages 14-19

Abstract:

In according with the volatility of renewable energy such as wind power in China，large-scale of whichcannot be consumption by grid，the non-grid-connected wind power theory is proposed in this paper.Theutilization of renewable energy.The paper discuss the essence and connotation of non-grid-connected wind powerapplication of non-grid-connected wind power theory，for China’s?

Keywords： non-grid-connected； multi-energy collaborative； smart load    

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Real-time simulation platform for photovoltaic system with a boost converter using MPPT algorithm in

Geethanjali PURUSHOTHAMAN, Vimisha VENUGOPALAN, Aleena Mariya VINCENT

Frontiers in Energy 2013, Volume 7, Issue 3,   Pages 373-379 doi: 10.1007/s11708-013-0272-8

Abstract: of the maximum power point tracking (MPPT) controller, especially in the photovoltaic (PV) system inNowadays, real time PV simulators are obtained by using analog and/or digital components.In this paper, a real-time simulation of a PV system with a boost converter was proposed using only theprocessor (DSP) processor with two DC voltage sources to emulate the temperature and irradiation in the PV systemA MATLAB/Simulink environment was used to develop the real-time PV system with a boost converter into

Keywords： photovoltaic (PV) module     digital signal processor (DSP) controller     power electronic converter     real-time    

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Technological development of multi-energy complementary system based on solar PVs and MGT

Xiaojing LV, Yu WENG, Xiaoyi DING, Shilie WENG, Yiwu WENG

Frontiers in Energy 2018, Volume 12, Issue 4,   Pages 509-517 doi: 10.1007/s11708-018-0598-3

Abstract:

The complementary micro-energy network system consisting of solar photovoltaic power generation (solarmicro-gas turbine (MGT), which not only improves the absorption rate and reliability of photovoltaic poweremission, high efficiency, and good fuel adaptability, has become one of the most promising distributed powerFurthermore, it predicted the future development of the key technology of the multi-energy complementarysystem.

Keywords： renewable energy     solar photovoltaic power generation     micro gas turbine     multi-energy complementary system    

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Investigation on the integral output power model of a large-scale wind farm

BAO Nengsheng, MA Xiuqian, NI Weidou

Frontiers in Energy 2007, Volume 1, Issue 1,   Pages 67-78 doi: 10.1007/s11708-007-0006-x

Abstract: The integral output power model of a large-scale wind farm is needed when estimating the wind farm soutput over a period of time in the future.among the wind turbine units and certain assumptions, the incoming wind flow model of multi-units isThe calculation algorithms and steps of the integral output power model of a large-scale wind farm areThe characteristics of a large-scale wind farm are also discussed.

Keywords： power model     actual     energy     large-scale     practical measurement    

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Environmental dispersivity in free-water-surface-effect dominated wetland: multi-scale analysis

Zi WU, Zhi LI, Li ZENG, Ling SHAO, Hansong TANG, Qing YANG, Guoqian CHEN

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 4,   Pages 597-603 doi: 10.1007/s11783-011-0311-9

Abstract: the most-typical pattern of wetland as dominated by free-water-surface-effect is characterized by a multi-scaleevolution of the mean concentration is deduced as an extension of Taylor's classical formulation by Mei’s multi-scale

Keywords： free-surface wetland     environmental dispersion     multi-scale analysis    

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A multi-modular shunt active power filter system and its novel fault-tolerant strategy based on split-phasecontrol and real-time bus communication None

Qun-wei XU, Jin-xiang ZHAN, Long XIAO, Guo-zhu CHEN

Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 9,   Pages 1166-1179 doi: 10.1631/FITEE.1601296

Abstract:

We first present a new multi-modular shunt active power filter system suitable for large-capacityEach module in the system has the same circuit topology, system functionality, and controller design,novel fault-tolerant approach is proposed based on split-phase control in the a-b-c frame and real-timeresulting in a continuous operation of the faulted module and optimization of the remaining usable powerprototype is established and experimental results show the validity and feasibility of the proposed multi-modular

Keywords： Shunt active power filter     Fault-tolerant topology     Split-phase control     Bus communication    

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Leader-following synchronization of a multi-agent system with heterogeneous delays Research Articles

Branislav Rehák, Volodymyr Lynnyk,rehakb@utia.cas.cz,volodymyr.lynnyk@utia.cas.cz

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 1,   Pages 1-140 doi: 10.1631/FITEE.2000207

Abstract: An algorithm is presented for leader-following synchronization of a composed of linear agents with . The presence of different delays in various agents can cause a synchronization error that does not converge to zero. However, the norm of this error can be bounded and this boundary is presented. The proof of the main results is formulated by means of linear matrix inequalities, and the size of this problem is independent of the number of agents. Results are illustrated through examples, highlighting the fact that the steady error is caused by heterogeneous delays and demonstrating the capability of the proposed algorithm to achieve synchronization up to a certain error.

Keywords： Multi-agent system     Time delay     Linear matrix inequality    

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Multi-scale evaluation of river health in Liao River Basin, China

Fei XU, Yanwei ZHAO, Zhifeng YANG, Yuan ZHANG

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 2,   Pages 227-235 doi: 10.1007/s11783-010-0219-9

Abstract: Previous studies on river health evaluation mainly focused on characterizations at a river-corridor scaleof the interactions among rivers, associated river basin and habitats, an assessment framework with multi-scaleAn index system divided among these three scales to characterize the health of river ecosystems in ChinaSet pair analysis was applied to integrate the multi-scale indicators and determine the health classes

Keywords： multi-scale characterization     river health evaluation     Liao River Basin     set pair analysis    

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Time-varying formation tracking for uncertain second-order nonlinearmulti-agent systems

Mao-peng RAN, Li-hua XIE, Jun-cheng LI

Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 1,   Pages 76-87 doi: 10.1631/FITEE.1800557

Abstract:

Our study is concerned with the time-varying formation tracking problem for second-order multi-agentunknown nonlinear dynamics and external disturbance, and the states of the followers form a predefined time-varyingThen we propose a novel ESO based time-varying formation tracking protocol.It is proved that, under the proposed protocol, the ESO estimation error and the time-varying formation

Keywords： Multi-agent system     Time-varying formation     Formation tracking     Nonlinear dynamics     Extended state observer    

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Title Author Date Type Operation

Multi-time scale dynamics in power electronics-dominated power systems

Xiaoming YUAN, Jiabing HU, Shijie CHENG

Journal Article

Impact of wind power generating system integration on frequency stabilization in multi-area power system

Y. K. BHATESHVAR,H. D. MATHUR,H. SIGUERDIDJANE

Journal Article

Active-reactive power scheduling of integrated electricity-gas network with multi-microgrids

Journal Article

Decreasing complexity of glucose time series derived from continuous glucose monitoring is correlated

Journal Article

Optimal dispatch of multi energy system using power-to-gas technology considering flexible load on user

Zi LING, Xiu YANG, Zilin LI

Journal Article

On the added value of multi-scale modeling of concrete

Journal Article

large-scale non-grid-connected wind power system

Fang Min,Kong Xiangwei,Shi Jianzhong and Gu Weidong

Journal Article

Real-time simulation platform for photovoltaic system with a boost converter using MPPT algorithm in

Geethanjali PURUSHOTHAMAN, Vimisha VENUGOPALAN, Aleena Mariya VINCENT

Journal Article

Technological development of multi-energy complementary system based on solar PVs and MGT

Xiaojing LV, Yu WENG, Xiaoyi DING, Shilie WENG, Yiwu WENG

Journal Article

Investigation on the integral output power model of a large-scale wind farm

BAO Nengsheng, MA Xiuqian, NI Weidou

Journal Article

Environmental dispersivity in free-water-surface-effect dominated wetland: multi-scale analysis

Zi WU, Zhi LI, Li ZENG, Ling SHAO, Hansong TANG, Qing YANG, Guoqian CHEN

Journal Article

A multi-modular shunt active power filter system and its novel fault-tolerant strategy based on split-phasecontrol and real-time bus communication

Qun-wei XU, Jin-xiang ZHAN, Long XIAO, Guo-zhu CHEN

Journal Article

Leader-following synchronization of a multi-agent system with heterogeneous delays

Branislav Rehák, Volodymyr Lynnyk,rehakb@utia.cas.cz,volodymyr.lynnyk@utia.cas.cz

Journal Article

Multi-scale evaluation of river health in Liao River Basin, China

Fei XU, Yanwei ZHAO, Zhifeng YANG, Yuan ZHANG

Journal Article

Time-varying formation tracking for uncertain second-order nonlinearmulti-agent systems

Mao-peng RAN, Li-hua XIE, Jun-cheng LI

Journal Article