Serwis Infona wykorzystuje pliki cookies (ciasteczka). Są to wartości tekstowe, zapamiętywane przez przeglądarkę na urządzeniu użytkownika. Nasz serwis ma dostęp do tych wartości oraz wykorzystuje je do zapamiętania danych dotyczących użytkownika, takich jak np. ustawienia (typu widok ekranu, wybór języka interfejsu), zapamiętanie zalogowania. Korzystanie z serwisu Infona oznacza zgodę na zapis informacji i ich wykorzystanie dla celów korzytania z serwisu. Więcej informacji można znaleźć w Polityce prywatności oraz Regulaminie serwisu. Zamknięcie tego okienka potwierdza zapoznanie się z informacją o plikach cookies, akceptację polityki prywatności i regulaminu oraz sposobu wykorzystywania plików cookies w serwisie. Możesz zmienić ustawienia obsługi cookies w swojej przeglądarce.
This paper presents a Monte Carlo based probabilistic methodology of evaluating the oscillatory stability margin of power system with large-scale wind generation. The approach considers not only the stochastic characteristics of wind speeds which are treated as random variables with Weibull distributions, while also the wind speed spatial correlations which are modeling by Nataf transformation. A...
Focusing on combined cooling-heating-power cogeneration dispatching problem for microgrid with windphoto voltaic-gas mixed generation and exchange with the grid, this paper firstly presented an optimal energy dispatching model. Forecast errors of load, wind power and PV are modeled in probabilistic ways, the integrated forecast error is then transformed to the up/down constraints and ramping rates...
An optimal scheduling approach on the wind-solar-storage generation system which considers the correlation among wind power, photovoltaic output and load is proposed in this paper. The object of scheduling model is to track load curve given by the grid dispatch center in the largest degree, and constraints includes upper and lower bound of each unit output, the maximum allowable spilling wind, photovoltaic...
Wind farm penetration limit calculation is an important issue in the planning and operation of power system with wind power. Here, the Chance Constrained Programming (CCP) model for the wind power penetration limit calculation is established, stochastic simulation is used to expresses the constraints by means of probability. In order to reduce the difficulty of the problem solving, a method considering...
In aspect of capacity, wind power generation and traditional power generation is inner connected. The capacity credit is a convenient and effective way to compare these two different types of power generation. Capacity credit of wind power (CCOWF) is presented in this paper, as well as a calculation method of CCOWF based on probabilistic production simulation (PPS), this method is based on sequence...
Due to the nature of randomness of wind power, an approach based on multi-state modeling wind power is proposed for power system probabilistic production simulation. The traditional probabilistic production simulation is used to deal with the optimal allocation and calculation problems of the thermal units, and it's not applicable to the system including wind power any more. The comprehensive model...
As the wind power generation technique is improved greatly, permanent magnet synchronous generator (PMSG) is paid more and more attention because of its multiple advantages. Nevertheless, conventional directly-drive PMSG wind generation system is connected to the grid by AC transmission. This paper introduces the DC connection structure of wind farm based on PMSG. According to VSC-HVDC (Voltage Source...
Peak regulation capability is commonly regarded as the bottleneck of the integration of wind power to the system. This paper focuses on peak regulation related issues for wind power integrated systems, makes a survey on state-of-the-art achievements in each relative field, and proposes some suggestions. The peak regulation related issues for wind power integrated systems are categorized into four...
With global environment problems increasing, wind power as a renewable energy is concerned worldwide, many wind farms are designed recently, however, the power output of wind farms is fluctuant which is determined by the intermittent and random of wind speed. With the increase of wind farm capacity and the percentage of wind power in the whole power system, the influence of the power output fluctuation...
Based on actual characteristic of Chinese power system, starting from the practice, this paper puts forward auxiliary service compensation mechanism designing principles in present Chinese power market. Following the spirit and the idea of provisional measures of auxiliary services management of the grid-connected power plant, combining the actual situation of wind power in China, this paper studies...
The estimation of operating reserve to guarantee the system security and economic operation is an important task in power system operation. With the rapid increase of wind power installation and its large scale integration into power systems, the uncertainty of wind power should be considered in operating reserve estimation. This paper discusses the risk from wind power forecast error and introduces...
Dynamic economic dispatch (DED) is a high-dimensional, non-convex, multi-constrained optimization problem. With the increase of wind power penetration into power systems, the DED problem becomes more difficult. In the mathematical model, the constraints of wind farm output and spinning reserve are proposed to deal with the random and unpredictable nature of wind power. In the power system with large-scale...
Wind power forecasting has great significance to the connection of wind farms to the electric power system. This paper analyzes individual forecast models, such as the time series forecasting, Elman network forecasting that based on the chaos theory, grey neural network forecasting, and generalized regression neural network forecasting, etc., then puts forward an entropy weight combination prediction...
How to compare the wind power generation and traditional power generation in aspect of capacity is essential of power system expansion. The capacity credit is a convenient and effective way to compare these two different types of power generation. Unfortunately, the definition of capacity credit of wind farms is not clear and generally acknowledged. In this paper, a more clear definition of wind farms'...
The integration of a large number of wind farms will have a significant impact on the reliability performance of the electric generation and transmission systems. In this paper, an adequacy evaluation model of wind power integration in power system based on the sequential Monte-Carlo simulation approach is presented. This model is applied to simulate power system including wind power generation. Depth...
Podaj zakres dat dla filtrowania wyświetlonych wyników. Możesz podać datę początkową, końcową lub obie daty. Daty możesz wpisać ręcznie lub wybrać za pomocą kalendarza.