Power oscillation damping capabilities of wind power plant with full converter wind turbines considering its distributed and modular characteristics

Abstract

Wind power plants (WPP) are for power system stability studies often represented with aggregated models where several wind turbines (WT) are aggregated into a single up-scaled model. The advantage is a reduction in the model complexity and the computational time, and for a number of study types the accuracy of the results has been found acceptable. A large WPP is, however, both modular and distributed over a large geographical area, and feasibility of aggregating the WTs, thus, have to be reassessed when new applications are introduced for WPPs. Here, the power oscillation damping capabilities are investigated for a WPP, which includes the full layout of the collector grid and where the WTs are represented individually. With this approach, the influence of the WT control in terms of impact on oscillatory modes is assessed for the WTs individually. The initial results encourage that park level control is possible. Time domain simulations support that each WT contribute to a common WPP response. Park level active and reactive power-based power oscillation damping controllers (POD) are designed and the positive damping contribution is demonstrated. Keeping the POD designs unchanged, the impact of WPP aggregation is investigated and it is shown that the level of WPP aggregation only has limited impact on the resulting modal damping. The study is based on a non-linear, dynamic model of the 3.6 MW Siemens Wind Power WT.

Wind/PV Generation for Frequency Regulation and Oscillation Damping in the Eastern Interconnection

“…The wind generation's potential in oscillation damping has already been noticed by many researchers [30][31][32][33][34][35][36][37]. In this section, the potential of variable-speed wind generation's contribution to oscillation damping in the EI will be investigated.…”

“…General Electric ® offers a commercial inertia droop control, known as WindINERTIA® based on this concept [29]. Besides the inertial response, the function of power system stabilizers (PSS) in conventional generators could also be emulated by using a kinetic energy-based active power control technique [30][31][32][33][34][35][36][37]. In this manner, variable-speed wind generators could also contribute to the power system smallsignal stability.…”

Profit payment scheme for service created by hybrid controller of large-scale wind power generation system

“…Particularly, the ability of wind power generation to damp power system swings is a momentous problem that should be verified by designers. To actively damp the power swings, wind power plants have been suggested to be equipped with power swing damping (PSD) controller [2,3]. In a system with multiple damping controllers like power network stabilizer (PNS), PSD controller, and supplementary damping controller (SDC), variables of the PSD controller of wind power plants (WPP) should be optimally tuned in a concurrent manner.…”

Towards a reactive power oscillation damping controller for wind power plant based on full converter wind turbines

“…8. A more detailed description of the WPP model with cable and transformer parameters are given in [14].…”

“…In [14] the modular and distributed characteristics of a WPP were included and the results indicate that a central WPP POD is possible for both active and reactive power modulation.…”