Interval optimization of the day-ahead clearing schedule considering the real-time imbalance power with wind power integration

2018 ◽  
Vol 28 (10) ◽  
pp. e2610 ◽  
Author(s):  
Yuewen Jiang ◽  
Meisen Chen ◽  
Buying Wen
Keyword(s):  
Real Time ◽  
Wind Power ◽  
Interval Optimization ◽  
The Real ◽  
Wind Power Integration

Application of the Real-Time EtherCAT Technology in Wind Power Control System

2012 ◽  
Vol 580 ◽  
pp. 155-159
Author(s):  
Xiang Ming Wang ◽  
Jin Chao Wang ◽  
Dong Hua Sun
Keyword(s):  
Control System ◽  
Real Time ◽  
Wind Power ◽  
High Speed ◽  
Communication Protocol ◽  
Data Communication ◽  
Data Acquisition System ◽  
Slave System ◽  
The Real ◽  
Wind Power System

In this paper, the real-time EtherCAT technology is introduced in detail, which including operating principle, communication protocol and the superiority performance of EtherCAT i.e. synchronicity, simultaneousness and high speed. To show how to design a slave system that considering the characteristics of application, the method of developing systems based no EtherCAT technology are proposed. Finally, a data acquisition system based on EtherCAT technology is designed. Application of EtherCAT technology can improve the real-time characteristics of data communication in wind power system.

scholarly journals Multi-Time Scale Rolling Economic Dispatch for Wind/Storage Power System Based on Forecast Error Feature Extraction

Energies ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 2124 ◽  
Author(s):  
Li Han ◽  
Rongchang Zhang ◽  
Xuesong Wang ◽  
Yu Dong
Keyword(s):  
Power System ◽  
Real Time ◽  
Wind Power ◽  
Power Unit ◽  
Time Scale ◽  
Forecast Error ◽  
Thermal Power ◽  
Time Error ◽  
The Real ◽  
The Impact

This paper looks at the ability to cope with the uncertainty of wind power and reduce the impact of wind power forecast error (WPFE) on the operation and dispatch of power system. Therefore, several factors which are related to WPFE will be studied. By statistical analysis of the historical data, an indicator of real-time error based on these factors is obtained to estimate WPFE. Based on the real-time estimation of WPFE, a multi-time scale rolling dispatch model for wind/storage power system is established. In the real-time error compensation section of this model, the previous dispatch plan of thermal power unit is revised according to the estimation of WPFE. As the regulating capacity of thermal power unit within a short time period is limited, the estimation of WPFE is further compensated by using battery energy storage system. This can not only decrease the risk caused by the wind power uncertainty and lessen wind spillage, but also reduce the total cost. Thereby providing a new method to describe and model wind power uncertainty, and providing economic, safe and energy-saving dispatch plan for power system. The analysis in case study verifies the effectiveness of the proposed model.

scholarly journals Wind Power Integration: An Experimental Investigation for Powering Local Communities

Energies ◽  
2019 ◽  
Vol 12 (4) ◽  
pp. 621 ◽  
Author(s):  
Mazhar Hussain Baloch ◽  
Dahaman Ishak ◽  
Sohaib Tahir Chaudary ◽  
Baqir Ali ◽  
Ali Asghar Memon ◽  
...  
Keyword(s):  
Real Time ◽  
Local Communities ◽  
Time Data ◽  
Wind Rose ◽  
The Real ◽  
Wind Power Integration ◽  
Course Of Action ◽  
Wind Potential ◽  
Real Time Data ◽  
Selection Of

The incorporation of wind energy as a non-conventional energy source has received a lot of attention. The selection of wind turbine (WT) prototypes and their installation based on assessment and analysis is considered as a major problem. This paper focuses on addressing the aforementioned issues through a Weibull distribution technique based on five different methods. The accurate results are obtained by considering the real-time data of a particular site located in the coastal zone of Pakistan. Based on the computations, it is observed that the proposed site has most suitable wind characteristics, low turbulence intensity, wind shear exponent located in a safe region, adequate generation with the most adequate capacity factor and wind potential. The wind potential of the proposed site is explicitly evaluated with the support of wind rose diagrams at different heights. The energy generated by ten different prototypes will suggest the most optimum and implausible WT models. Correspondingly, the most capricious as well as optimal methods are also classified among the five Weibull parameters. Moreover, this study provides a meaningful course of action for the selection of a suitable site, WT prototype and parameters evaluation based on the real-time data for powering local communities.

scholarly journals A Two-Stage Dispatching Method for Wind-Hydropower-Pumped Storage Integrated Power Systems

2021 ◽  
Vol 9 ◽  
Author(s):  
Shuai Hu ◽  
Yue Xiang ◽  
Junyong Liu ◽  
Jianhua Li ◽  
Chang Liu
Keyword(s):  
Renewable Energy ◽  
Power Systems ◽  
Real Time ◽  
Wind Power ◽  
Generation Model ◽  
Two Stage ◽  
The Real ◽  
Allocation Method ◽  
Pumped Storage ◽  
Benefit Allocation

With the fossil energy crisis and environmental pollution, wind energy and other renewable energy have been booming. However, the strong intermittence and volatility of wind power make difficult of its integration into grid. To solve this problem, this study proposes a complementary power generation model of wind-hydropower-pumped storage systems, which uses hydropower and pumped storage to adjust the fluctuation of wind power. How to consider the uncertainty and unpredictability of wind power output and make more reliable hydropower generation plan and pumped storage generation plan is the key problem to be solved in the grid with the high proportion of renewable energy. The martingale model of forecast evolution is used to describe the uncertainty evolution of wind power in different regions. According to the flexible load in the region, the flexibility index is used to quantify flexibility, and the transaction price is set to be proportional to flexibility. The two-stage framework of day-ahead and real-time dispatching model is then developed. In the day-ahead stage, different regions trade with each other. If the power after trading is imbalanced, it will be supplemented by hydropower and the grid to meet the power demand. In the real-time stage, the pumped storage is added to quickly balance the deviation of wind power and load between the real-time and day-ahead stages. Finally, considering the positive effect of hydropower on wind power consumption in the grid, a benefit allocation method based on improved Shapley value method is proposed. Test cases are simulated to verify the rationality of the proposed dispatching model and the benefit allocation method. After the cooperation of hydropower and pumped storage, the average revenue growth is 3.02%. The improved benefit allocation scheme makes more benefit of hydropower and pumped storage and promotes the cooperation of multi-participants.

The Review on the Topology of Battery-Supercapacitor Hybrid System Applied into the Real-Time Wind Power Suppression

2013 ◽  
Vol 860-863 ◽  
pp. 287-292 ◽  
Author(s):  
Peng Yu ◽  
Guang Lei Li ◽  
Yong Zhang ◽  
Yan Cheng ◽  
Shu Min Sun ◽  
...  
Keyword(s):  
Energy Storage ◽  
Real Time ◽  
Wind Power ◽  
Hybrid System ◽  
Storage System ◽  
Operation Mode ◽  
Energy Storage System ◽  
High Energy ◽  
The Real ◽  
Power Regulation

The energy storage technique is one of the most effective means for the real-time wind power regulation. Firstly, this paper discussed the operation mode of energy storage system for real-time wind power regulation. At the same time, we proposed that the energy storage system applied into the real-time wind power regulation should be of the properties of high power density, high energy density and long cycle life. By analyzing the properties of battery and supercapacitor, we arrive at the conclusion that the battery-supercapacitor hybrid system obtains the enhanced characteristics to meet the performance requirement for energy storage system. In order to achieve the real-time wind power suppression, we carried out a comparative research on the topology of battery-supercapacitor hybrid system. The operation mode of each topology was discussed. From the standpoint of practical engineering, the merits and deficiencies of each topology were explored.

scholarly journals Data-driven analysis of the real-time electricity price considering wind power effect

2020 ◽  
Vol 6 ◽  
pp. 452-459 ◽  
Author(s):  
Shengjie Yang ◽  
Xuesong Xu ◽  
Jiangang Liu ◽  
Weijin Jiang
Keyword(s):  
Real Time ◽  
Wind Power ◽  
Electricity Price ◽  
Data Driven ◽  
The Real ◽  
Power Effect
Sign in / Sign up

Export Citation Format

Share Document