scholarly journals Control Strategy for DFIG-based Variable Speed Pumped Storage Power Plants Under Balanced and Unbalanced Grid Conditions

2018 ◽  
Keyword(s):  
Control Strategy ◽  
Power Plants ◽  
Variable Speed ◽  
Pumped Storage ◽  
Unbalanced Grid

scholarly journals Identification of Dynamic Simulation Models for Variable Speed Pumped Storage Power Plants

2017 ◽  
Vol 813 ◽  
pp. 012006 ◽  
Author(s):  
C Moreira ◽  
N Fulgêncio ◽  
B Silva ◽  
C Nicolet ◽  
A Béguin
Keyword(s):  
Dynamic Simulation ◽  
Power Plants ◽  
Simulation Models ◽  
Variable Speed ◽  
Pumped Storage

scholarly journals Reliability of Variable Speed Pumped-Storage Plant

Electronics ◽  
2018 ◽  
Vol 7 (10) ◽  
pp. 265 ◽  
Author(s):  
Anto Joseph ◽  
Thanga Chelliah ◽  
Sze Lee ◽  
Kyo-Beum Lee
Keyword(s):  
Markov Model ◽  
Power Plants ◽  
Reactive Power ◽  
Induction Machine ◽  
Voltage Source ◽  
Variable Speed ◽  
Doubly Fed Induction Machine ◽  
Optimal Efficiency ◽  
Doubly Fed ◽  
Pumped Storage

The multi-channel (MC) back-to-back voltage source inverter (VSI)-fed doubly fed induction machine (DFIM) is emerging as a highly interesting topic in large-rated variable speed pumped-storage power plants (PSPP) in view of cost, optimal efficiency, and space requirements. Although the VSI is the fundamental part of the drive controlling the active/reactive power of the plant, redundancy is presently not adopted in practice causing the unit as a whole to shut down upon a failure in the converter and control circuit. This paper evaluates a large-rated (250 MW) DFIM-fed variable-speed unit of a PSPP in terms of its reliability and availability. A Markov model is developed to assess the reliability of the drive based on a number of factors including survivability and annual failure rate (FIT). Further, the Markov model is applied to different PSPPs for comparison of reliability among them.

scholarly journals Risk of penstock fatigue in pumped-storage power plants operating with variable speed in pumping mode

2019 ◽  
Vol 133 ◽  
pp. 636-646 ◽  
Author(s):  
Guillermo Martínez-Lucas ◽  
Juan I. Pérez-Díaz ◽  
Manuel Chazarra ◽  
José I. Sarasúa ◽  
Giovanna Cavazzini ◽  
...  
Keyword(s):  
Power Plants ◽  
Variable Speed ◽  
Pumping Mode ◽  
Pumped Storage

scholarly journals Analysis of Control Characteristics and Design of Control System Based on Internal Parameters in Doubly Fed Variable-Speed Pumped Storage Unit

Complexity ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-23
Author(s):  
Guopeng Zhao ◽  
Yongxin Zhang ◽  
Jiyun Ren
Keyword(s):  
Control Strategy ◽  
Control Strategies ◽  
Variable Speed ◽  
Pump Mode ◽  
Storage Unit ◽  
Control Block ◽  
Internal Parameters ◽  
Generating Mode ◽  
Doubly Fed ◽  
Pumped Storage

In this paper, the control strategies and their characteristics when applied to the doubly-fed variable-speed pumped storage unit in generating mode and pump mode are discussed. The composition of doubly fed variable-speed pumped storage unit is introduced, and the mathematical model of every component is proposed. Two control strategies of the unit are introduced. One is the power priority control strategy and the other is the speed priority control strategy. Then, the control block diagrams of the two control strategies in the generating mode and the pump mode are established, and the parameters of the unit in each control strategy are designed. The two control strategies are simulated in power generation and pumping conditions. Finally, the conclusion that power priority strategy has a better effect on power control is obtained.

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