The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In a power system network, the system power needs are met by all the generating stations working in coordination. When there are many power generating units, a lot many operating strategies are possible to meet the time based varying power demand. In this paper, an optimization study is carried out to checkout the cost effectiveness of using a deloaded photovoltaic (PV) instead of battery. The three...
This paper presents an optimization algorithm to automatically dimension the driving power stage of an electrical vehicle based on the characteristics of the motor and the driving profiles taking efficiency, cost and lifetime into account. The dimensioning process focuses on analyzing and modeling the two major components: the capacitor bank and the IGBT module in a 3-phase 2-level voltage-source...
In this paper a hybrid algorithm that monitors the voltage at the Point of Common Coupling (PCC) and dispatches the optimal power from battery integrated micro grid is proposed. The proposed architecture integrates a rule based dispatch and a predictive optimization algorithm and ensures optimal power dispatch with minimum voltage variations at the PCC. The methodology and the algorithmic flowchart...
This paper considers the weight optimization of an axial-flux machine (AFM) for airborne wind turbines (AWT). It employs combined electrical, thermal and structural (mechanical) analytical models, which allow a fast evaluation of machine performance. Therefore, instead of introducing cost functions, the complete machine design space can be considered. The machines are shown in a performance space...
In this paper application of Two Point estimate method is presented to generate optimal bids of tandem hydro power plants in deregulated environment. Hydro Generation Company is considered as a price taker. In tandem hydro plants, the energy output and profit of the hydro plants is dependent on the river inflow and market prices. Both of these are stochastic in nature and can be considered as exogenous...
The major disadvantage of Switched Reluctance Motors (SRMs) is their high torque ripples which limits their suitability to high performance Adjustable Speed Motor Drive (ASMD) applications. Various Instantaneous Torque Control (ITC) schemes have been developed to mitigate the SRM torque ripples. Among them, Torque Sharing Function (TSF) is a popular torque control method. Various conventional offline...
Permanent magnet synchronous generator (PMSG) is eventually making a serious impact on to the direct drive wind power application. The power density of these generators is critically important to ensure the robustness and cost effectiveness of the supporting turbine structure. In this paper, an optimal design procedure is adopted for the investigation of a radial flux surface mounted PMSG. In order...
A total harmonic distortion (THD) optimization based 5-level selective harmonic elimination pulse width modulated (SHE-PWM) single-phase reduced device count (RDC) voltage source inverter (VSI) is presented in this paper. A MATLAB program is developed for offline calculation of switching angles based on quarter wave (QW) symmetry of the output and overall THD optimization method of SHE-PWM. The inverter...
an optimal driving region (ODR) of electric vehicle (EV) is determined here for changing a speed during acceleration. The ODR which is restricted by two extreme driving points comprises multiple driving strategies (acceleration(s) and the corresponding acceleration duration). ODR was decided by solving an optimization problem that includes three conflicting objectives, minimizing total acceleration...
The advancements in Distributed Generation Technology and the environmental concerns has given a way for adopting more and more Distributed Generation(DG) sources into the power system. The benefits from the Distributed Generation can be guaranteed only if they are integrated at appropriate locations with optimal capacity. This was one of the research interest in the past decade and numerous studies...
Day ahead scheduling of power generation resources has turned out to be complex and challenging optimization problem with the integration of Renewable energy sources to the power grid. Photovoltaic sources are the most significant and abundant renewable energy source being integrated to the power system. Due to the stochastic nature of the solar irradiance and the associated power, scheduling of the...
Partial shading conditions are inevitable especially in building-integrated photovoltaic (PV) systems. Detection of partial shading is vital for monitoring and supervising purposes as well as invoking global maximum power point tracking (MPPT) algorithms. Normally, a sudden big change in output power is used as a partial shading occurrence indicator. However, it cannot ensure detection accuracy. Utilizing...
The paper describes the estimation of parameters of battery model at various temperatures for the Li-ion battery. The estimation of parameters employs experimental methods that are time-consuming, expensive and require high computational power. Hence, second-order RC network equivalent circuit model parameters estimation is done using GA, PSO, and DE optimization techniques. For proper evaluation,...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.