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Reliability evaluation of tidal and wind power generation system with battery energy storage

Journal of Modern power Systems and Clean Energy 2016年第4期4卷 636-647页

作者： Mingjun LIU Wenyuan LI Juan YU Zhouyang REN Ruilin XU State Key Laboratory of power Transmission Equipment&System Security and New Technology Chongqing UniversityChongqing 400030China Chongqing Electric power Research Institute Chongqing 401123China

This paper presents a method for reliability evaluation of a hybrid generation system of wind and tidal powers with battery energy *** a system may widely exist in coastal areas and islands in the future.A chronological multiple state probability model of tidal power generation system(TPGS)considering both forced outage rate(FOR)of the TPGS and random nature of tidal current speed is *** the evaluation of FORs of TPGS and WPGS(wind power generation system),the delivered power related failure rates of power electronic converters for TPGS and WPGS are considered.A chronological power output model of battery energy storage system(BESS)is derived.A hybrid system of tidal and wind generation powers with a BESS is used to demonstrate the effectiveness of the presented *** case studies,the effects of various parameters on the system reliability are investigated.

关键词： generation system tidal power generation Wind power generation Battery energy storage Reliability evaluation

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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

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