Cost advantage of adjustable-speed pumped storage unit for daily operation in distributed hybrid system

2021 ◽  
Author(s):  
Chen Feng ◽  
Yuan Zheng ◽  
Chaoshun Li ◽  
Zijun Mai ◽  
Wei Wu ◽  
...  
Keyword(s):  
Hybrid System ◽  
Cost Advantage ◽  
Storage Unit ◽  
Adjustable Speed ◽  
Pumped Storage

Research and Develop on Static Frequency Converter of Pumped Storage Power Plant

2012 ◽  
Vol 608-609 ◽  
pp. 1120-1126 ◽  
Author(s):  
De Shun Wang ◽  
Bo Yang ◽  
Lian Tao Ji
Keyword(s):  
Power Plant ◽  
Control Strategy ◽  
Large Scale ◽  
Frequency Converter ◽  
Position Estimation ◽  
Position Sensor ◽  
Storage Unit ◽  
Rotor Position ◽  
Start Up ◽  
Pumped Storage

A static frequency converter start-up control strategy for pumped-storage power unit is presented. And rotor position detecting without position sensor is realized according to voltage and magnetism equations of ideal synchronous motor mathematics model. The mechanism and implementation method of initial rotor position determination and rotor position estimation under low frequency without position sensor are expounded and validated by simulations. Based on the mentioned control strategy, first set of a static frequency converter start-up device in China for large-scale pumped-storage unit is developed, which is applied to start-up control test in the 90 MW generator/motor of Panjiakou Pumped-storage Power Plant. Test results show that rotor position detecting, pulse commutation, natural commutation, and unit synchronous procedure control of static start-up are all proved. The outcomes have been applied in running equipment, which proves the feasibility of mentioned method.

scholarly journals An experimental platform of variable speed pumped storage unit under wave disturbance: introduction and preliminary progress

2021 ◽  
Vol 774 (1) ◽  
pp. 012151
Author(s):  
Weijia Yang ◽  
Jiandong Yang ◽  
Wei Zeng ◽  
Zhigao Zhao ◽  
Guiqiao Zheng ◽  
...  
Keyword(s):  
Wave Disturbance ◽  
Variable Speed ◽  
Storage Unit ◽  
Experimental Platform ◽  
Pumped Storage

Intelligent Optimization of Hybrid Wind/PV/pumped-Storage Power System

2012 ◽  
Vol 512-515 ◽  
pp. 719-722
Author(s):  
Yan Ren ◽  
Yuan Zheng ◽  
Chong Li ◽  
Bing Zhou ◽  
Zhi Hao Mao
Keyword(s):  
Global Optimization ◽  
Particle Swarm Optimization ◽  
Power System ◽  
Hybrid System ◽  
Optimization Algorithm ◽  
Particle Swarm Optimization Algorithm ◽  
Particle Swarm ◽  
Swarm Optimization ◽  
Good Convergence ◽  
Pumped Storage

The hybrid wind/PV/pumped-storage power system was the hybrid system which combined hybrid wind/PV system and pumped-storage power station. System optimization was very important in the system design process. Particle swarm optimization algorithm was a stochastic global optimization algorithm with good convergence and high accuracy, so it was used to optimize the hybrid system in this paper. First, the system reliability model was established. Second, the particle swarm optimization algorithm was used to optimize the system model in Nanjing. Finally, The results were analyzed and discussed. The optimization results showed that the optimal design method of wind/PV/pumped-storage system based on particle swarm optimization could take into account both the local optimization and the global optimization, which has good convergence high precision. The optimal system was that LPSP (loss of power supply probability) was zero.

scholarly journals Modeling Adjustable Speed Pumped Storage Hydro Units Employing Doubly-Fed Induction Machines

2013 ◽  
Author(s):  
J. Feltes ◽  
V. Koritarov ◽  
L. Guzowski ◽  
Y. Kazachkov ◽  
B. Gong ◽  
...  
Keyword(s):  
Induction Machines ◽  
Adjustable Speed ◽  
Doubly Fed ◽  
Pumped Storage
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