International Business Machines Corporation

Universiti Brunei Darussalam

Sathyajith Mathew

Jagabondhu Hazra

Shivkumar Kalyanaraman

Ashish Verma

Manikandan Padmanaban

Devasenapathi Periagraharam Seetharamakrishnan

Mitra Shubhadip

Mohammad Iskandar Pg Hj Petra

Haseeb Shah

Chee Ming Lim

Methods, systems, and computer program products for determining intermittent renewable energy penetration limits in a grid are provided herein. A computer-implemented method includes determining a load forecast for an electrical network based on historical load data and future step load information; determining the maximum size of renewable energy sources that can be added to the network based on the load forecast, parameters pertaining to the network, information pertaining to the renewable energy sources, and information pertaining to non-renewable energy sources; determining a storage component size for storing renewable energy generated by the renewable energy sources based on the maximum size of the renewable energy sources and constraints associated with the network; determining a minimum loading level of the non-renewable energy sources based on the load forecast, intermittency data associated with the renewable energy sources and the parameters pertaining to the network; and configuring the network based on the determinations.

Determining intermittent renewable energy penetration limits in a grid

A low Reynolds number airfoil for a wind turbine blade, the airfoil having a leading edgea trailing edge spaced from the leading edgea chorddefined as a straight line joining the leading edgeand the trailing edge, a chordlength defined as distance between the trailing edge and the point on the leading edgewhere the chordintersects the leading edgewherein the airfoil comprises a camberbetween 5% to 7% of the chordlength, the camberis disposed within a distance of 17% of the chordlength from the leading edgeand a thickness of the airfoil not greater than 7% of the chordlength. In an embodiment, it discloses A method of designing blade for low wind speed turbine for a site location, the method comprising obtaining time series data for the site location, computing a Weibull shape factor (K) and scale factor (C)corresponding to a Weibull distribution function based on the time series data for the site location, using K and C to identify energy intensive wind speed at the site location, determining blade length based on the energy intensive wind speed, K, C, a design power (PD) of the turbine, a design power coefficient (Cpd), and a density of the air (Ro), wherein the rated power of the turbine depends on load to be connected of the turbine, selecting a generator for use with the turbine, computing a design tip speed ratio based on a rated speed of the generator (NGD), a gear ratio (GR), the design power (PD), K, and C, identifying number of blades (B) depending on the design tip speed ratio and an end-use of the power being produced by the turbine; and identifying a chordlength and twist of the blade from root-to-tip.

Low Reynolds number airfoil for a wind turbine blade and method thereof

Methods and arrangements for determining a layout and dimensions of a wind farm. A three-dimensional wake model for a wind farm is generated, and a positioning and dimensioning model for turbines of the wind farm is developed based on the three-dimensional wake model.

Wind farm layout in consideration of three-dimensional wake

Growing community of inventors

Jalan Gadong, Brunei

Sathyajith Mathew