Ingeteam's 1500 Vdc technology for Spain's first hybrid wind power storage plant

Mon, 19/06/2017 - 15:19


Ingeteam Power Technology, S.A.
E-Mail: info@ingeteam.com
Tel. +34 948 288 000
Fax +34 948 288 001

Renewable energies, and wind and solar power in particular, are recognized as the most suitable clean energy generation sources to meet the world's growing energy demand while achieving the targets for reducing greenhouse gas emissions. However, a high penetration of these energy production sources in the generation mix does have some drawbacks. This is due to the natural intermittency associated with the wind and sun alike, which could affect the balance between generation and demand and, therefore, the stability of the distribution network. The most effective way to overcome this obstacle is to include an energy storage system (ESS), thereby making it possible to stabilize the grid and mitigate the unpredictability associated with the intermittency of renewable energy generation.

Ingeteam and Acciona are working in partnership on a project which has made it possible to implement the first plant to combine wind power generation with two energy storage systems. The first system, named "power", comprises a battery which makes it possible to provide a high power output for short periods of time and is used to smooth rapid power output fluctuations (in the range of seconds or minutes). The second system, named "energy", makes it possible to supply energy for a greater amount of time and to control power fluctuations over longer periods of time.

This figure shows a schematic diagram of the plant. (Graphic: Ingeteam)

The plant, situated in Barasoain, a locality in Navarra in northern Spain, stores the energy produced by an Acciona Windpower turbine with a rated capacity of 3MW. The energy storage system is divided into two containers housing Samsung Lithium-Ion batteries, each managed by an Ingeteam battery inverter with 1500 Vdc technology.

The combined use of both storage technologies optimizes the total sizing of the system and makes it possible to smooth the fluctuations resulting from wind power generation, thereby permitting the greater integration of this energy into the grid, without compromising stability.

For this project, Ingeteam developed a new inverter storage technology, capable of operating with DC voltages of up to 1500V and power outputs of up to 1.6 MW. The company also developed a plant control system capable of controlling the battery state of charge and of commanding the inverters/chargers in relation to the injection of active and reactive power, based on the setpoints provided by the overall management system.

HYWINDESS

The HYWINDESS project takes its name from the words hybrid, wind and ESS, in reference to its hybrid nature, combining wind power generation on the one hand and energy storage on the other. This project, in which Ingeteam has worked with Acciona Energy as a partner, was financed by the  European Regional Development Fund (ERDF) through the Centre for Industrial Technology Development (CDTI).

The project comes within the EUROGIA2020 initiative, supporting and facilitating technology development and collaboration between European companies through the promotion of renewable energy generation technologies.

Ingeteam technology

In addition to the technology development and the hours of research contributed, Ingeteam also supplied its technology for this project:

  • Power station, a 20 foot container fitted with all the necessary equipment to inject medium voltage power: two battery inverters, LV/MV transformer, medium voltage switchgear, auxiliary services transformer and low voltage switchgear.
  • Two 1500 Vdc battery inverters, each with a rated power output of 1200 kW, part of the INGECON® SUN STORAGE PowerMax B Series family.
  • The INGECON® SUN EMS Plant Controller, responsible for communicating with the batteries and for controlling the inverter operation based on the setpoints set by an overall management software tool developed by Acciona Energy.
  • Commissioning of the battery inverters and storage system.