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Banco de pruebas universal para sistemas generadores y conversores, por ejemplo, para medición de aerogeneradores


Oferta Tecnológica
Un instituto de una universidad alemana ha desarrollado un banco de pruebas universal para analizar sistemas generadores y conversores, por ejemplo, para aerogeneradores. Este banco de pruebas mide las propiedades estacionarias y dinámicas de máquinas eléctricas y conversores, incluyendo la interacción conversor/máquina. Los resultados permiten validar y mejorar programas de cálculo, procesos de diagnóstico y modelos de simulación ampliados de componentes eléctricos y mecánicos. El instituto busca socios industriales e investigadores interesados en utilizar este banco de pruebas en el marco de un acuerdo de investigación o cooperación técnica.


German university institute has developed universal test bench for Generator-Converter-Systems i.e. for the measurement of wind energy generators
A German university institute has developed a universal test bench for analyzing generator converter systems (i.e. wind energy generators). The universal test bench measures the stationary and dynamic properties of electrical machines and converters including converter/machine interactions. The institute is looking for industrial or research partners who are interested in using the test bench in the framework of a research or technical cooperation agreement.
This universal generator converter test bench can thoroughly analyze conventional and innovative inverter and generator concepts (including the control and methods for filter design). This also includes the measurement of dynamics and system stability, stationary and transient thermal load, various methods of grid feeding and regulation as well as behavior in the case of network faults, voltage breakdowns, phase shorts or earth faults.

The test bench is also used to analyze the interaction between the inverter and the generator and its influence on other system components like bearings and gearboxes. Examples include the effects of vibrations in the current, additional heating, local saturation effects.

The results of the testing enable the validation and improvement of calculation programs, diagnostic procedures and extended simulation models for electrical and mechanical components in order to meet the requirements.

The power class selected here of approx. 1.5 MW makes it possible to carry out studies for target systems of even higher power on a scale of 1:10.

The university institute is interested in a research or a technical cooperation agreement with an industrial or research partner who wants to test new concepts in the context of pre-developments. The universal test bench offers the necessary variation possibilities to meet the requirements of studying the variety of current and future drive topologies in the whole as well as in individual components.

Equipment parameters:
- rated voltage up to 690 V
- permanent magnet synchronous machine with respective full converter [PN = 1.2 MW, nN = 375 rpm (0 - 750 rpm)]
- doubly-fed induction machine with respective wind converter [PN = 2.08 MW, nN = 1,780 rpm]
- converter-based grid modelling [SN = 4.4 MVA; unbalance, freely adjustable frequency and harmonics]
- maximum component weight 20 t
- base area of span 10 m x 4.3 m

- steady-state and transient operating conditions (eta, PV, M, U, I, ECD, ...)
- temperature rise and loss distribution
- diagnostic methods

On electrical machines:
· flux distribution, end-winding fields
· current displacement, circulating currents
· Additional losses through harmonics
· Winding defects and their diagnosis
· Tolerance effects (eccentricity, ...)
· Grid behaviour, FRT
· unbalanced loads: short circuits and sudden short circuits (2- or 3-phase with or without star point connection)

On power electronics (converter, filter):
· motor-side converter: control with rise time, setpoint changes
· ramps, load steps, reversing, etc.), grid-side converter
· voltage quality, line disturbances, control
· control quality
· harmonics (generation and impacts)
· Modulation methods, low output frequencies down to zero

Test bench capacities (from January 2016)
- Operation of prototypes or test machines and converters
- Testing of customer machines and converters
Advantages and Innovations:
The industry often lacks investigation capacities for optimizing electrical machines. Despite decades of experience in this field, the development of electrical machines and converters with megawatt capacities is still far from being completed. This depends upon the fact that the requirements constantly change and that the used materials and electronic components are constantly being further developed.

This universal test bench offers the study of steady state and dynamic properties of electrical machines and converters including converter/machine interactions. Satisfying the constant demand for improved efficiency with increased effectiveness or increased reliability is the aim of this technology.
Stage of Development:
Already on the market

Partner sought

Type and Role of Partner Sought:
- Type of partner sought: Industrial (SME, MNE) and research partners

- Specific area of activity of the partner: Companies or research institutes active in the field of electrical machines and drive systems, power electronics and drive control, energy companies.

- Task to be performed by the partner sought: usage of universal test bench for calculation, design, optimization and validation of electrical machines


Type and Size of Client:
Already Engaged in Trans-National Cooperation:
Languages Spoken:


Technology Keywords:
04002005 Generadores, motores eléctricos y conversores de potencia
04007001 Gestión de la energía
04005002 Hydropower
04001004 Transmisión de electricidad
04005008 Wind energy