Ancillary Services and Wind Power Plants: Status and Experiences
Lunch (in tutorial room)
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.
Lecturer: Bo Hesselbæk (Vestas Wind Systems, Denmark)
The presentation will give a short introduction to the power system and reasons why ancillary services is needed. Thereafter an overview of the different ancillary services wind power delivers today and the future prospects for delivering services from wind power plants will follow. The different services could be grid support for ex. reactive power. Further on, the presentation will also touch upon more products focused on market/balancing like up and down regulation, frequency response. Lastly, the commercial/regulatory changes which could create a more level playing field for wind power to further support the grid will be discussed.
Renewable Energy and Ancillary Services in Spain
Lecturer: María Sánchez Llorente (Red Electrica, Spain)
Firstly, the presentation gives an overview of the Spanish Electricity System and its main characteristics. It shows also the specific Control Centre for Renewables (CECRE) and the great level of observability and controllability reached for renewable energies in Spain. Further on, the presentation gets deeply in which is the actual situation of ancillary services: last regulatory changes, mandatory prequalification tests to participate and real participation of renewable energies. Lastly, we will talk about the necessary coordination to avoid impact in congestion management from the units participating in balancing markets.
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.