scholarly journals Variable Speed Pumped Storage Hydropower Plants for Integration of Wind Power in Isolated Power Systems

10.5772/7354 ◽  
2009 ◽  
Author(s):  
Jon Are
Keyword(s):  
Power Systems ◽  
Wind Power ◽  
Variable Speed ◽  
Hydropower Plants ◽  
Pumped Storage

A TWO LOOP OPTIMAL CONTROL OF FLEXIBLE DRIVE TRAIN VARIABLE SPEED WIND POWER SYSTEMS

2005 ◽  
Vol 38 (1) ◽  
pp. 344-349 ◽  
Author(s):  
Iulian MUNTEANU ◽  
Antoneta Iuliana BRATCU ◽  
Nicolaos Antonio CUTULULIS ◽  
Emil CEANGÂ
Keyword(s):  
Optimal Control ◽  
Power Systems ◽  
Wind Power ◽  
Drive Train ◽  
Variable Speed ◽  
Wind Power Systems

Optimal Joint Energy and Secondary Regulation Reserve Hourly Scheduling of Variable Speed Pumped Storage Hydropower Plants

2018 ◽  
Vol 33 (1) ◽  
pp. 103-115 ◽  
Author(s):  
Manuel Chazarra ◽  
Juan Ignacio Perez-Diaz ◽  
Javier Garcia-Gonzalez
Keyword(s):  
Variable Speed ◽  
Hydropower Plants ◽  
Pumped Storage

Linear Quadratic Optimization of Variable Speed Wind Power Systems

2003 ◽  
Vol 36 (8) ◽  
pp. 157-162 ◽  
Author(s):  
Iulian Munteanu ◽  
Emil Ceanga ◽  
Nicolaos Antonio Cutululis ◽  
Antoneta Bratcu
Keyword(s):  
Power Systems ◽  
Wind Power ◽  
Quadratic Optimization ◽  
Variable Speed ◽  
Linear Quadratic ◽  
Wind Power Systems

scholarly journals Research on the Dispatch Model of Power Systems with Wind Power and Pumped Storage Station

2017 ◽  
Vol 5 (2) ◽  
pp. 95-100
Author(s):  
Bo Yuan ◽  
◽  
Yawu Zhang ◽  
Jin Zong ◽  
Shengyu Wu ◽  
...  
Keyword(s):  
Power Systems ◽  
Wind Power ◽  
Storage Station ◽  
Pumped Storage

scholarly journals Fixed-speed and Variable-speed Pumped Storage Dispatch Model in Power Systems with High Renewable Penetration

2018 ◽  
Vol 38 ◽  
pp. 04014
Author(s):  
Bo Yuan ◽  
Jin Zong ◽  
Zhicheng Xu
Keyword(s):  
Power Systems ◽  
Linear Optimization ◽  
Operating Conditions ◽  
Economic Life ◽  
Mixed Integer ◽  
Variable Speed ◽  
Operating Characteristics ◽  
Storage Unit ◽  
New Energy ◽  
Pumped Storage

According to different operating characteristics of pumped storage fixed speed unit and variable speed unit, a joint dispatching model of pumped storage unit and other types of units based on mixed integer linear optimization is constructed. The model takes into account the operating conditions, reservoir capacity, cycle type and other pumped storage unit constraints, but also consider the frequent start and stop and the stability of the operation of the unit caused by the loss. Using the Cplex solver to solve the model, the empirical example of the provincial power grid shows that the model can effectively arrange the pumping storage speed and the dispatching operation of the variable speed unit under the precondition of economic life of the unit, and give full play to the function of peak shaving and accommodating new energy. Because of its more flexible regulation characteristics of power generation and pumping conditions, the variable speed unit can better improve the operating conditions of other units in the system and promote the new energy dissipation.

scholarly journals An Adaptive Control Scheme for Variable Speed Wind Turbines Providing Frequency Regulation in Isolated Power Systems with Thermal Generation

Energies ◽  
2020 ◽  
Vol 13 (13) ◽  
pp. 3369 ◽  
Author(s):  
Ana Fernández-Guillamón ◽  
Guillermo Martínez-Lucas ◽  
Ángel Molina-García ◽  
Jose Ignacio Sarasua
Keyword(s):  
Adaptive Control ◽  
Power Systems ◽  
Wind Power ◽  
Rotational Speed ◽  
Power Plants ◽  
Load Shedding ◽  
Frequency Regulation ◽  
Variable Speed ◽  
Wind Power Plants ◽  
Equipment Wear

The lack of synchronous inertia, associated with the relevant penetration of variable speed wind turbines (VSWTs) into isolated power systems, has increased their vulnerability to strong frequency deviations. In fact, the activation of load shedding schemes is a common practice when an incident occurs, i.e., the outage of a conventional unit. Under this framework, wind power plants should actively contribute to frequency stability and grid reliability. However, the contribution of VSWTs to frequency regulation involves several drawbacks related to their efficiency and equipment wear due to electrical power requirements, rotational speed changes, and subsequently, shaft torque oscillations. As a result, wind energy producers are not usually willing to offer such frequency regulation. In this paper, a new control technique is proposed to optimize the frequency response of wind power plants after a power imbalanced situation. The proposed frequency controller depends on different power system parameters through a linear regression to determine the contribution of wind power plants for each imbalance condition. As a consequence, VSWTs frequency contribution is estimated to minimize their mechanical and electrical efforts, thus reducing their equipment wear. A group of sixty supply-side and imbalance scenarios are simulated and analyzed. Results of the case study are compared to previous proposals. The proposed adaptive control reduces the maximum torque and rotational speed variations while at the same time maintaining similar values of the load shedding program. Extensive results and discussion are included in the paper.

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