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Improving the grid power quality using virtual synchronous machines
Abstract
This paper presents the improvement of power quality and grid stability for distributed generation using the virtual synchronous machine (VISMA) which embodies a hysteresis controlled three phase inverter with a synchronous machine model on an embedded control computer to calculate the reference currents. Currently the conventional grid-connected inverters are predominantly designed to transmit electrical energy to the grid discounting the maintenance of frequency and voltage and also its transient stability. However, the VISMA is able to regulate both the active and reactive power separately and bidirectionally by setting the virtual torque and virtual excitation to meet the power system requirements. Furthermore, a virtual rotating mass is implemented in the VISMA in order to increase the inertia in the grid and improve the transient frequency stability in analogy to the conventional synchronous generator. Additionally, the virtual damping of the VISMA can reduce the frequency and power oscillation in the grid. All these properties mentioned above have been verified in simulations and measurements in an experimental micro grid.
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Citations
Cited by
Brown, T. W., Bischof-Niemz, T., Blok, K., Breyer, C., Lund, H., & Mathiesen, B. V. (2018) · Renewable and Sustainable Energy Reviews · doi:10.1016/j.rser.2018.04.113 · Cited by 519
Future low-inertia power systems: Requirements, issues, and solutions - A review
Ratnam, K. S., Palanisamy, K., & Yang, G. (2020) · Renewable and Sustainable Energy Reviews · doi:10.1016/j.rser.2020.109773 · Cited by 474
Current Limiting Control With Enhanced Dynamics of Grid-Forming Converters During Fault Conditions
Taul, M. G., Wang, X., Davari, P., & Blaabjerg, F. (2020) · IEEE Journal of Emerging and Selected Topics in Power Electronics · doi:10.1109/jestpe.2019.2931477 · Cited by 466
Metadata
- Authors
- Chen, Y., Hesse, R., Turschner, D., & Beck, H.-P.
- Venue
- 2011 International Conference on Power Engineering, Energy and Electrical Drives
- Publisher
- IEEE
- Published
- 2011-05
- Pages
- 1-6
- OpenAlex
- W2130382347
- Cited by
- 276
- References
- 0
- FWCI
- 6.98
- Type
- conference paper
- Language
- en
- Open access
- closed
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