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In this paper, a fixed-structure Individual Pitch Control (IPC) design method for two-bladed wind turbines is presented. IPC is an active load reduction technique designed to lower wind turbine loads, which are caused by continuously varying wind conditions. Based on load measurements, the once-per-revolution (1P) loads and harmonics of this frequency (2P, 3P, etc.) can be reduced by rotating (pitching)...
In order to achieve reductions in wind turbine structural loads and to enable further increase of wind turbine rated power and dimensions, individual pitch control algorithms received significant portion of attention in the scientific community in the recent years. Individual pitch control typically reduces only the first loads harmonic, but as the wind turbines grow in size, it is expected that higher...
This paper shows that it is possible to substantially reduce the rectifier capacitor and filter banks when using diode based HVDC link for the connection of large off-shore wind farms. The considered wind turbines are based on full power power converters. The paper includes a control strategy that allows the wind turbine front-end converters to control the offshore ac-grid voltage and frequency and,...
The filter bank size is one of the main deterrents for the use of otherwise more efficient LCC-HVDC links for the connection of large off-shore wind farms. This paper shows how the HVDC rectifier filter banks can be substantially reduced by taking advantage of the additional control flexibility offered by the use of wind turbines with fully rated converters. PSCAD simulation results are shown where...
Wind power plant meets so many power quality issues when it is connected with strong grid. This paper proposes a new power quality conditioner to regulate the supply frequency, to control the power flow, to minimize the current harmonics, and to regulate the voltage for fixed speed induction generator type wind generator. The name of the proposed new power line conditioner is called as Universal Power...
In this paper, a battery energy storage system (BESS) based voltage and frequency (VF) controller based on isolated three-leg VSC with a zig-zag transformer is proposed for stand alone power generation using a permanent magnet synchronous generator (PMSG). An isolated distributed generation (DG) system is realised using fixed pitch wind turbine. The proposed stand alone wind energy conversion system...
In this paper, a distributed generation based on stand alone wind energy conversion system (WECS) using a permanent magnet synchronous generator (PMSG) is proposed with a solid state voltage and frequency (VF) controller. A high efficiency WECS is realised using a PMSG driven by a wind turbine with a gear system. The controller consists of IGBTs (insulated gate bipolar transistors) based voltage source...
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