Ancillary Services and Wind Power Plants: Status and Experiences
Voltage Control with Wind Power Plants
Lecturer: Hanna Emanuel (Enercon, Germany)
The presentation gives an overview on voltage controlling with wind power plants. After showing typical reactive power ranges of wind turbines and explaining various control types, practice examples and field test results as well as constraints in project specific parameter settings will be discussed. As a final point losses from reactive power provision will be introduced and an insight on German and international discussions on possible remuneration of reactive power provision shall be given.
Balancing Response with Wind Power Plants
Lecturer: Andreas Linder (Enercon, Germany)
Control Reserve as a System Service has the important role to stabilize the grid / the frequency whenever an incident occurs in the grid. As of today 3 GW of Primary Control Reserve are necessary in Continental Europe to compensate the first loss of generation or consumption. Further Control Reserve products help longer-lasting incidents. Diverse remunaration schemes are in place to give the System Responsible Parties access to adequate Control Reserve which also gives owners of Power Plants access to a source of revenue. How may Wind Energy be used to offer Control Reserve? What technical solutions exist and which are possible? Which regulatory and technical boarders exist that hinder Wind Energy from offering Control Reserve? This talks wants to give answers to these questions along with presenting finished and actual pilot and research projects.
Inertia Response with Wind Power Plants
Lecturer: Nicholas Miller (GE Energy Consulting, USA)
Inertia-based controls for wind turbines provide an opportunity to help address concerns associated with the decline in synchronous inertia and displacement of traditional sources of frequency sensitive generation. This lecture will examine the fundamental enabling technology for frequency sensitive controls that depend on turbine inertia. Topics will include variations in control philosophy; discussion of why these controls are not exactly the same as synchronous inertia; examples of system performance impacts; and review of some emerging grid requirements.
The presentation will give an overview of the different ancillary services that DONG Energy Wind Power delivers today and the future prospects for delivering services from wind farms. The different services could be grid support for ex. reactive power, inter-tripping. Further on, the presentation will also touch upon more products focused on market/balancing like up and down regulation, frequency response. Under development are also more stability focused products like sub-second frequency response which is being investigated. Ancillary services and requirements for wind farms connected to HVDC will also be discussed. Lastly, the commercial/regulatory changes which create a more level playing field for wind power to further support the grid will be discussed.