Voltage stabilization by central reactive power control of biogas power plants (Virtual Biogas Power Plant)
Electrical energy from biogas plants usually is fed into the public grid. Due to the fact, that biogas plants normally have a gas storage with at least a 1-day capacity of biogas, they are suitable to adapt the energy fed into the grid to the current requests respecting both:
- 1. Active power (adaption to the load curve of the grid)
- 2. Voltage resp. reactive power (by controlling the field current of the generator)
Up to now, at the best the first possibility has been used only. Requests of grid control and grid stability have not been respected.
The aim of the current project therefore is the development of a concept to prepare and to initiate a model system for a certain number of biogas plants, which should be connected together, building a "virtual power plant". This "virtual power plant" is centrally controlled in the viewpoint of optimized grid control for both, active and reactive power. To realize such a system, specific knowledge concerning relevant technical, economical and at least legal details is needed, which has to be prepared in the subject project.
- The project contains 4 main tasks
- Task 1: System analysis model development
In Task 1, a basic concept of a model system for grid stabilization by interconnected biogas plants will be developed. Technical and economical boundary conditions will be investigated. Technical measures, necessary for interconnection of some 20 biogas plants will be specified.
- Task 2: Life Cycle Analysis
In Task 2, a Life Cycle Analysis of the model system will be carried out
- Task 3: Workshops
A start up workshop with owners (operators) of biogas plants and grid operator STEWEAG-STEG is planned. In this workshop the details of the project work will be discussed and decided.
In the later stage of the project, a further workshop is planned with representatives of possibly subsidizing governmental institutions and political decision makers is planned. In this workshop, details of the later planned realization of the model system as a demonstration project will be discussed.
- Task 4: Preparation of a demonstration project
In task 4, STEWEAG-STEG and interested owners/operators of biogas plants will enter into preliminary negotiations about the details of the model system and the details of the model system will be specified.
The expected result of the subject project is a concept for model system of a "virtual biogas power plant". The concept will contain a list of interested partners (owners/operators of biogas plants), a technical specification of the model system, an economic analysis, and an analysis of the possible benefit for the climate protection (green house gas balance).
Dr. Reinhard Padinger
Joanneum Research Forschungsgesellschaft mbH
Project- and Cooperationspartner
- STEWEAG-STEG GmbH
- Bio Energie Ratschendorf GmbH
- Ökostrom Mureck GmbH
- Bioenergie Lukas-Pfeifer-Tscherner GmbH
- Kohlroser Biogas GmbH
- NEGH Biostrom KEG
- Biokraft Hartberg Energieproduktions GmbH