Yang Liu

Shanghai University of Electric Power

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Lingling Huang

Shanghai University of Electric Power

Yang Fu

Shanghai University of Electric Power

Yajun Wu

Shanghai University

Changsong Zhang

Shanghai Urban Construction Design and Research Institute (Group)

M. Gao

Shanghai University

Linbao Wu

Shanghai University

Xudong Zhang

Beijing Institute of Technology

Xudong Zhang

Shanghai University

Zixu Ren

Shanghai University of Electric Power

Feixiang Ying

Shanghai University of Electric Power

Cooperative Institutions

Shanghai University of Electric Power

Shanghai University

PowerChina (China)

Tsinghua University

National University of Singapore

Xi'an Jiaotong University

Sichuan University

Shanghai Urban Construction Design and Research Institute (Group)

Shanghai Institute of Geological Survey

Institute of High Energy Physics

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Feasibility of sludge deep dewaterability improvement for incineration disposal by combined conditioning of freeze-thaw and sawdust

Environmental Research (2024)

Yajun Wu Yang Liu Xudong Zhang M. Gao Changsong Zhang

Sawdust

Heat of combustion

Sewage sludge

Dewatering

10.1016/j.envres.2024.118987

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Citations (2)

Grid-connection transmission system planning of offshore wind farm cluster consider the project income

Frontiers in Energy Research (2024)

Fang He Yang Liu Qirui Feng Shurong Wei

The scale and cluster development of offshore wind power faces the constraints of high construction cost, limited submarine corridor resources, etc. Under the background of offshore wind power parity development, it is urgent to consider the actual constraints of the project and the impact of project income on the owner, and the construction of offshore public station and the optimal selection of transmission method have become an important measure to reduce the cost and increase the efficiency of offshore wind power. A life-cycle cost model for offshore wind farm cluster grid-connection system planning is constructed to consider the project income, and the offshore public station location and capacity, transmission method, and high-voltage cable selection and path are optimized, which are solved by an improved single parent genetic algorithm and a topology repair strategy based on graph theory. The results show that the proposed planning scheme can effectively improve the life-cycle project income of the grid-connection system and provide technical support for the grid-connection planning of large-scale offshore wind farm clusters.

Grid connection

Transmission system

10.3389/fenrg.2024.1416225

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Citations (1)

Dewatering performance enhancement of waste activated sludge using FeCl3 and freeze-thaw synergistic co-conditioning method

Journal of Water Process Engineering (2024)

Yajun Wu Linbao Wu Xudong Zhang Changsong Zhang Nguyen Xuan Quang Chau

Dewatering

10.1016/j.jwpe.2024.106004

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Citations (1)

Collection System Topology for Deep-Sea Offshore Wind Farms Considering Wind Characteristics

IEEE Transactions on Energy Conversion (2021)

Yang Fu Yang Liu Lingling Huang Feixiang Ying Fangxing Li

DC series-parallel collection system has recently been widely discussed for integrating deep-sea OWFs because it saves the offshore HVDC stations. However, comparing with traditional offshore electrical collection systems, there is a unique operational problem introducing by the DC series-parallel system that is the wind power curtailment caused by the wind power fluctuations. In this paper, a rigorous mathematical analysis of wind power curtailment is conducted, and an optimization model considering wind power curtailment for DC series-parallel collection systems is proposed. To address the particularities of the series-parallel collection system in graph theory, an improved parthenogenetic algorithm (PGA) is suggested to address the optimization problem. The proposed model and optimization algorithms are tested based on a deep-sea OWF with 56 wind turbines (WTs). The simulation results show that considering wind power curtailment during the DC series-parallel system planning helps to save the levelized cable cost of energy (LCCOE) in the long term, and putting the wiring direction of the series as perpendicular as possible to the prevailing wind direction of the OWF helps to increase the power generation of the OWF and reduce LCCOE.

10.1109/tec.2021.3104040

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Citations (32)

Optimization of offshore grid planning considering onshore network expansions

Renewable Energy (2021)

Yang Liu Yang Fu Lingling Huang Zixu Ren Feng Jia

Sea breeze

10.1016/j.renene.2021.08.117

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Citations (22)

Reborn and upgrading: Optimum repowering planning for offshore wind farms

Energy Reports (2022)

Yang Liu Yang Fu Lingling Huang Kaihua Zhang

Since the first offshore wind farm (OWF) was raised, with a total installed capacity of 32.4 GW by the end of 2020, the offshore wind power industry has experienced rapid development in the past two decades. In the next years, the decommissioning of OWFs needs to be paid attention in the countries where the offshore wind power is developed much early. In order to tap the residual value of decommissioned OWFs and reduce the damage to the ocean environment, this paper focuses on the repowering planning of OWFs, and proposes a repowering strategy considering the health conditions of wind turbines (WTs). Firstly, an evaluation method based on dynamic degradation is proposed, considering the influence of marine meteorological factors and the interaction between components on the health conditions of offshore WTs. An optimum decommissioning scheme is formulated according to the evaluation results. Aiming at the optimal levelized cost of energy (LCOE), the repowering strategy of a decommissioned OWF is optimized. Based on the case study of a real OWF in China, the results show that the repowering strategy proposed in this paper effectively reduces the LCOE and improves the repowering efficiency of the OWF, which can provide reference for the future decommissioning of OWFs.

Nuclear decommissioning

10.1016/j.egyr.2022.04.002

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Citations (10)