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Wind Energy

Wind Energy. ABB Inc. INTRODUCTION. Presently there is a strong push towards introducing renewable energy sources into the power grid both in the US and abroad Of all the renewable energy sources, wind is presently the most viable technology

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Wind Energy

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  1. Wind Energy ABB Inc.

  2. INTRODUCTION • Presently there is a strong push towards introducing renewable energy sources into the power grid both in the US and abroad • Of all the renewable energy sources, wind is presently the most viable technology • In the past wind farms were generally small (ten’s of MWs) and connected mainly to distribution systems • Today most of the wind farms going into service are +100 MWs and many are being connected at major transmission substations • This prompts the need for systems analysis in the early stages of wind farm development to ensure proper integration into the bulk transmission system

  3. INTEGRATION OF WIND FARMS INTO THE GRID • The two most common types of wind turbine generators (WTG) are conventional induction generators and doubly-fed induction generators (DFIG) • These technologies are quite different and have different stead-state and dynamic performances • Another key aspect to consider is the low-voltage ride-through capability of the wind turbine generators (see WECC White Paper and ABB papers) • Analysis needs to be performed early in the planning stages of the wind farm with appropriate models and engineering experience to identify requirements for proper integration of the wind farm into the bulk transmission system

  4. ABB EXPERIENCE • ABB engineers have performed numerous studies for the integration of wind farms into Utility grids in the US and Europe • Studies performed in US regions such as SPP, MAPP and WECC (six major studies in the past 2 years) • Studies performed outside the US (e.g. in Spain) • The above study work has spanned from 1996 to the present • Our engineers have developed • Models for conventional induction generators through direct correspondence with the WTG manufacturers • Detailed 3-phase (EMTP type) models for DFIG through direct correspondence with the WTG manufacturers • Generic user-written transient stability level models for DFIG units for use in PTI PSS/ETM • In one case ABB performed an extensive study related to the potential interaction of WTG with a nearby HVDC station • ABB is one of the largest manufacturers and suppliers of generating units (conventional and doubly-fed induction machine)

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