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A rotor open-phase imbalance protection for variable speed pumped storage unit based on rotation transformation fault component ratio

Qinghui Lu, Jian Qiao, Xin Yin, Xianggen Yin, Zhichang Liu, Yikai Wang, Kai Wang, Yikai Wang, Kai Wang   +8 more
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Enhanced hybrid microgrid stability with electric vehicle integration using PDA-FOPIID control optimized by tianji's horse racing algorithm. [PDF]

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Kotb H, Elkassas AM, Megahed AI, Hammad MR, AboRas KM.   +4 more
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Grid-Connection Control of Doubly Fed Variable Speed Pumped Storage Unit

2021 5th International Conference on Green Energy and Applications (ICGEA), 2021
To avoid the harmonics voltage interfering in the control of the stator voltage amplitude and phase of doubly fed induction machine in the process of grid-connection, and improve the accuracy of voltage synchronization, this paper presents a grid-connection control method based on ButterWorth low-pass filter.
Guoxian Gong, Jingliang Lv, Xinjian Jiang, Xudong Sun   +3 more
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DP optimization Operation for Hybrid Seawater Pumped Storage with Variable-Speed Unit

2021 4th International Conference on Energy, Electrical and Power Engineering (CEEPE), 2021
In recent years, using variable-speed pumped storage systems to stabilize and absorb large-scale renewable energy has become a research hotspot, especially the joint operation system composed of seawater pumped storage and offshore wind power. It can effectively stabilize the wind power and solve water supply problems (for desalination) and power ...
Weiwei Yao, Changhong Deng, Man Chen, Peng Peng   +3 more
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Review on Technology of Seawater Variable Speed Pumped Storage Generator Unit

2020 IEEE 4th Conference on Energy Internet and Energy System Integration (EI2), 2020
The working principle and technical characteristics of variable speed pumped-storage generator are very different from that of conventional fixed speed pumped-storage generator. Its core technologies include variable speed mode, variable speed adjustment range, ac excitation system components and topological structure, rotor end fixed form, rotor ...
Rufei He, Hao Zhang, Fang Wang
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An Overall Control of Doubly fed Variable Speed Pumped Storage Unit in Pumping Mode

2020 IEEE 4th Conference on Energy Internet and Energy System Integration (EI2), 2020
Doubly fed induction machine(DFIM) has excellent speed regulation performance, which can meet the demand of frequency and voltage regulation of power grid and solve the problem of efficiency reduction of pump-turbine resulting from the change of hydraulic head when applied to pumped storage.
Dinglin Li, Guoxian Gong, Jingliang Lv, Xinjian Jiang, Rufei He   +4 more
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Regulating Short-time Wind Power Fluctuation by Variable Speed Pumped Storage Unit

2019 IEEE Power & Energy Society General Meeting (PESGM), 2019
While dynamic regulating effects of pumped storage units have been more and more important in power systems integrated with large-scale wind power, outputs of the conventional reversible pumped storage units still cannot be dynamically adjusted in pumping mode due to the characteristics of pump-turbine.
Jin Zou, Jizhong Zhu, Pingping Xie, Peizheng Xuan, Xu Lai   +4 more
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Stochastic Security Constrained Unit Commitment with variable-speed pumped-storage Hydropower Plants

2016 Power Systems Computation Conference (PSCC), 2016
The Pumped Hydro Storages (PHSs) equipped with variables speed drives have several advantages, namely: i) power regulation in pumping mode, ii) extended operating range, iii) higher efficiency in turbine mode. Such flexible operation of the PHS units ensures capability of the PHS to provide the frequency control reserves even during the pumping mode ...
Omid Alizadeh-Mousavi, Mostafa Nick
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Analysis and Comparison on Power Characteristics of Fixed-speed and Variable-speed Pumped Storage Unit

2021 IEEE International Conference on Power, Intelligent Computing and Systems (ICPICS), 2021
Power characteristics are important for evaluating the operation performance of pumped storage units, and the power characteristics of fixed-speed pumped storage unit and variable-speed pumped storage unit are different. Based on the electrical characteristics and hydraulic characteristics of the two types of pumped storage units, their operating ...
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