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ADMM-based Distributed Active and Reactive Power Control for Regional AC Power Grid with Wind Farms

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Journal of Modern Power Systems and Clean Energy 2022年第3期10卷 588-596页

作者： Pengda Wang Qiuwei Wu Sheng Huang canbing li Bin Zhou Center for Electric Power and Energy(CEE) Department of Electrical EngineeringTechnical University of Denmark(DTU)Kgs.Lyngby 2800Denmark School of Electronic Information and Electrical Engineering Shanghai Jiao Tong UniversityShanghai 200240China College of Electrical and Information Engineering Hunan UniversityChangsha 410082China

A distributed active and reactive power control(DARPC)strategy based on the alternating direction method of multipliers(ADMM)is proposed for regional AC transmission system(TS)with wind farms(WFs).The proposed DARPC strategy optimizes the power distribution among the WFs to minimize the power losses of the AC TS while tracking the active power reference from the transmission system operator(TSO),and minimizes the voltage deviation of the buses inside the WF from the rated voltage as well as the power losses of the WF collection *** optimal power flow(OPF)of the TS is relaxed by using the semidefinite programming(SDP)relaxation while the branch flow model is used to model the WF collection *** the DARPC strategy,the large-scale strongly-coupled optimization problem is decomposed by using the ADMM,which is solved in the regional TS controller and WF controllers in parallel without loss of the global *** boundary information is exchanged between the regional TS controller and WF *** with the conventional OPF method of the TS with WFs,the optimality and accuracy of the system operation can be ***,the proposed strategy efficiently reduces the computation burden of the TS controller and eliminates the need of a central *** protection of the information privacy can be enhanced.A modified IEEE 9-bus system with two WFs consisting of 64 wind turbines(WTs)is used to validate the proposed DARPC strategy.

关键词： Alternating direction method of multipliers(ADMM) distributed active and reactive power control(DARPC) optimal power flow(OPF) semidefinite programming(SDP) wind farm

Optimal Offering Strategy of Virtual Power Plant with Hybrid Renewable Ocean Energy Portfolio

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CSEE Journal of Power and Energy Systems 2023年第6期9卷 2040-2051页

作者： Siyuan Guo Bin Zhou Ka Wing Chan Siqi Bu canbing li Nian liu Cong Zhang College of Electrical and Information Engineering Hunan UniversityChangsha 410082China Department of Electrical Engineering The Hong Kong Polytechnic UniversityHong KongChina School of Electronic Information and Electrical Engineering Shanghai Jiao Tong UniversityShanghai 200240China State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power UniversityBeijing 102206China

This paper proposes a hybrid ocean energy sys-tem to form a virtual power plant(VPP)for participating in electricity markets in order to promote the renewable ocean energy utilization and *** the proposed system,solar thermal energy is integrated with the closed-cycle ocean thermal energy conversion(OTEC)to boost the temperature differences between the surface and deep seawater for efficiency and flexibility improvements,and the thermodynamic effects of seawater mass flow rates on the output of solar-boosted OTEC(SOTEC)are exploited for deploying SOTEC as a renewable dispatchable *** optimal tidal-storage operation model is also developed to make use of subsea pumped storage(SPS)with hydrostatic pressures at ocean depths for mitigating the intermittent tidal range energy in order to make the arbitrage in the electricity ***,a two-stage coordinated scheduling strategy is presented to optimally control seawater mass flow rates of SOTEC and hydraulic reversible pump-turbines of SPS for enhancing the daily VPP *** studies have been investigated to confirm the superiority of the developed methodology in various renewable ocean energy and electricity market price scenarios.

关键词： Ocean thermal energy conversion rolling optimization subsea pumped storage system tidal power generation virtual power plant

Bi-level Energy Trading Model Incorporating Large-scale Biogas Plant and Demand Response Aggregator

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Journal of Modern Power Systems and Clean Energy 2023年第2期11卷 567-578页

作者： Hanyu Yang canbing li Ruanming Huang Feng Wang lili Hao Qiuwei Wu Long Zhou College of Electrical Engineering and Control Science Nanjing Tech UniversityNanjingChina School of Electronic Information and Electrical Engineering Shanghai Jiao Tong UniversityShanghai 200240China Economic and Technological Research Institute of Shanghai Electric Power Company ShanghaiChina College of Electrical and Information Engineering Hunan UniversityChangsha 410082China Tsinghua-Berkeley Shenzhen Institute Tsinghua Shenzhen International Graduate SchoolTsinghua UniversityShenzhen 518055China Information Center of Guangdong Power Grid Company limited Guangzhou 528000China

Increasing intermittent renewable energy sources(RESs)intensifies the imbalance between demand and generation,entailing the diversification of the deployment of electrical energy storage systems(ESSs).A large-scale biogas plant(LBP)installed with heating devices and biogas energy storage(BES)usually exhibits a storage-like characteristic of accommodating an increasing penetration level of RES in rural areas,which is addressed in this *** utilizing the temperature-sensitive characteristic of anaerobic digestion that enables the LBP to exhibit a storage-like characteristic,this paper proposes a bi-level energy trading model incorporating LBP and demand response aggregator(DRA)*** this model,social welfare is maximized at the upper level while the profit of DRA is maximized at the lower *** with cases only with DRA,the results show that the proposed model with the LBP improves the on-site accommodation capacity of photovoltaic(PV)generation up to 6.3%,18.1%,and 18.9%at 30%,40%,and 50%PV penetration levels,respectively,with a better economic *** nonlinear bi-level problem is finally recast by a single-level mathematical program with equilibrium constraints(MPEC)using Karush-Kuhn-Tucker(KKT)conditions and solved by the Cplex *** effectiveness of the proposed model is validated using a 33-bus test system and a sensitivity analysis is provided for analyzing what parameter influences the accommodation capacity most.

关键词： Biomass energy renewable energy resource energy trading demand response distribution system

Economic Scheduling of Gaseous-liquid Hydrogen Generation and Storage Plants Considering Complementarity of Multiple Products

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Journal of Modern Power Systems and Clean Energy 2023年第1期11卷 223-233页

作者： Jiamei Zhang Kai Sun canbing li Hui liu Wentao Huang Bin Zhou Xiaochao Hou College of Electrical and Information Engineering Hunan UniversityChangsha 410082China Hunan Key Laboratory of Intelligent Information Analysis Integrated Optimization for Energy Internet Hunan UniversityChangsha 410082China Department of Electrical Engineering Tsinghua UniversityBeijing 100084China Department of Electrical Engineering Shanghai Jiao Tong UniversityShanghai 200240China College of electrical Engineering Guangxi UniversityNanning 530004China IEEE

The accessible and convenient hydrogen supply is the foundation of successful materialization for hydrogen-powered vehicles(HVs).This paper proposes a novel optimal scheduling model for gaseous-liquid hydrogen generation and storage plants powered by renewable energy to enhance the economic feasibility of *** gaseous-liquid hydrogen generation and storage plant can be regarded as an energy hub to supply concurrent service to both the transportation sector and ancillary *** the proposed model,the power to multi-state hydrogen(P2MH)process is analyzed in detail to model the branched hydrogen flow constraints and the corresponding energy conversion relationship during hydrogen generation,processing,and *** model the coupling and interaction of diverse modules in the system,the multi-energy coupling matrix is developed,which can exhibit the mapping of power from the input to the *** on this,a multi-product optimal scheduling(MPOS)algorithm considering complementarity of different hydrogen products is further formulated to optimize dispatch factors of the energy hub system to maximize the profit within limited *** demand response signals are incorporated in the algorithm to further enhance the operation revenue and the scenario-based method is deployed to consider the *** proposed methodology has been fully tested and the results demonstrate that the proposed MPOS can lead to a higher rate of return for the gaseous-liquid hydrogen generation and storage plant.

关键词： Demand response energy hub hydrogen generation and storage plant optimal scheduling renewable energy

Cost analysis of air capture driven by wind energy under different scenarios

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Journal of Modern Power Systems and Clean Energy 2016年第2期4卷 275-281页

作者： Yinghui GENG canbing li Yijia CAO Hao CHEN Yonghong KUANG Xuedong REN Xinwei BAI College of Electrical and Information Engineering Hunan UniversityChangsha 410082China College of Computer Science and Electronic Engineering Hunan UniversityChangsha 410082China

Reducing the concentration of carbon dioxide(CO2) in the air can effectively alleviate climate *** capture,which captures CO2 directly from the air in an industrial process,is an alternative option to address climate *** results of recent studies on the energy demand in CO2 capture process and the costs of CO2transport and CO2 storage in air capture are analyzed in this *** renewable energy will not produce additional CO2 in the process of utilization,the electric energy in CO2 capture process of air capture driven by wind energy is different from that of carbon capture and *** externalities of renewable energy intoaccount,the trading price of CO2 emission is taken to assess the cost of electric energy in CO2 capture of air capture driven by wind ***,the total cost and the total cost savings of air capture driven by wind energy under different scenarios are analyzed.

关键词： CO2 capture and storage Renewable energy Wind power Air capture CO2 emission

Influence of Re-ions with different ionic radius in Ba_(12)ReNb_(9)O_(36) on crystal structure and microwave dielectric properties

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Journal of Materiomics 2022年第1期8卷 104-112页

作者： Pengcheng Zhang Hao li Xiaoqing Chen Xing Zhang Hongcheng Yang canbing li Shuren Zhang College of Electrical and Information Engineering Hunan UniversityChangsha410082China State Key Laboratory of Electronic Thin Films and Integrated Devices University of Electronic Science and Technology of ChinaChengdu610054China National Engineering Research Center of Electromagnetic Radiation Control Materials University of Electronic Science and Technology of ChinaChengdu610054China

The Ba_(12)ReNb_(9)O_(36)(Re=Yb,Ce,Tm,Er,Y,Ho,Dy,Gd)ceramics are synthesized by solid-phase reaction *** phase composition,crystal structure,microstructure,and microwave dielectric properties of the ceramics are investigated by X-ray diffraction,X-ray photoelectron spectroscopy,Scanning electron microscopy and Raman *** optimal microwave dielectric properties(ε_(r)=37.23,Q×f=36600 GHz,andτ_(f)=34 ppm/℃)are obtained for Ba_(12)YbNb_(9)O_(36) ceramic sintered at 1420℃for 6 *** this system,the variation of dielectric constant is dominated by *** Q×f is mainly affected by internal strain/fluctuation of *** variation of τ_(f) is related to the temperature coefficient of dielectric constant and the oxygen octahedron ***,the reduction of Ce^(4+) ions,the relative density,linear thermal expansion coefficient,and the second phase are also important factors affecting microwave dielectric properties.

关键词： Microwave dielectric ceramic Ba_(12)ReNb_(9)O_(36) Polarizability Raman spectrum

Optimal allocation of multi-type FACTS devices in power systems based on power flow entropy

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Journal of Modern Power Systems and Clean Energy 2014年第2期2卷 173-180页

作者： canbing li liwu XIAO Yijia CAO Qianlong ZHU Baling FANG Yi TAN Long ZENG College of Electrical and Information Engineering Hunan UniversityChangsha 410082China

Flexible AC transmission systems(FACTS)devices can effectively optimize the distribution of power *** flow entropy can be applied as a measure of load *** this paper,a method is proposed to optimize the distribution of power flow with the coordination of multi-type FACTS devices and establishes the corresponding mathematical *** modified group searcher optimization(GSO)algorithm is proposed,in which the angle search is combined with chaotic search model to avoid jumping into local *** with the different optimal allocation of multi-FACTS devices,the optimal allocation of multi-FACTS devices is achieved under the economic *** locations obtained by this method can achieve the purpose of balancing power flow and enhancing the system *** simulations are demonstrated in an IEEE 118-bus power system with two classical types of FACTS,namely static var compensator(SVC)and thyristor controlled series Compensator(TCSC).The simulation results show that the proposed method is feasible and effective.

关键词： Chaotic search model Flexible AC transmission system(FACTS) Group searcher optimization(GSO) Power flow entropy

Steady-state Voltage Reactive Compensation Method for Half-wavelength Transmission lines Considering Equivalent Power Supply Impedance

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CSEE Journal of Power and Energy Systems 2020年第4期6卷 841-847页

作者： Jun Yi Wei Hu Zijie Zhang Lu Qiu Ansi Wang Bowen Yan canbing li Quanyou Yue China Electric Power Research Institute Beijing 100192China State Key Laboratory of Department of Electrical Engineering Tsinghua UniversityBeijing 100084China Hunan Key Laboratory of Intelligent Information Analysis and Integrated Optimization for Energy Internet Hunan UniversityChangsha 410006China Department of Electrical Engineering Shanghai Jiao Tong UniversityShanghai 200240China

Half-wavelength AC transmission(HWACT)refers to transmission along lines with an electrical distance of half the power frequency *** voltage amplitude at the sending terminal is equal to that at the receiving terminal in ***,the voltage at the receiving terminal does not vary with ***,the electrical distance has been extended in actual HWACT lines because of the impact of the equivalent power supply impedance,so the attractive characteristics no longer *** a result,reactive power compensation methods with constant power factor and constant voltage are needed and these are presented in this *** steady-state operational characteristics,the calculation methods of additional reactive power compensation and the admittance of a controllable shunt reactor are also *** methods proposed in this paper are relatively simple to implement,and the calculations involved are straightforward,resulting in effective voltage *** results indicate that such compensation methods can increase the transmission capacity while maintaining a relatively low voltage along the line.

关键词： half-wavelength AC transmission(HWACT) reactive power compensation steady state transmission lines

A comparative study on grid resource utilization rate between China Southern Power Grid and National Grid Plc of UK

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Protection and Control of Modern Power Systems 2018年第1期3卷 286-293页

作者： Long Zhou Di Zhang Weijie Wu Manman Zhu Hanyu Yang canbing li Ge li Fei li Mingjian Cui Information Center Guangdong Power Grid Company LimitedGuangzhou 528000China College of Electrical and Information Engineering Hunan UniversityChangsha 410082China Planning and Research Center Guangdong Power Grid Company LimitedGuangzhou 528000China Department of Electrical Engineering Southern Methodist UniversityDallas 75275USA

Grid resource utilization rate plays a key role in power grid *** the proportion of population and the area in China Southern Power Grid(CSG)and National Grid Plc of UK(NG)are nearly,grid resources utilization of CSG is lower than that of *** this paper,the utilization of human resources and equipment resources of CSG and NG have been *** is discovered that there is a large gap between these two *** results show that the utilization in CSG is about 20%to 50%of that in *** it is estimated that if the equipment resources utilization of CSG increases to the level of NG in 2012,the coal consumption and thus CO2 emissions would be reduced by 17 million tons and 21 million tons,*** China is a developing country and Britain is a mature developed country,it is to some extent reasonable that grid resources utilization of CSG is lower than that of *** benefits of improving equipment resources utilization are illustrated in detail,which provided the reference for developing the grid resource utilization in China.

关键词： Electrical equipment Human resources Power grid enterprises Energy saving