Modular Multilevel Converter Based STATCOM with Battery and Ultracapacitor for AC Grid Applications
| Autor: | Suman Maiti, Nirmalya Dhal, Anil Bharadwaj.Ch |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Supercapacitor
Wind power business.industry Computer science 020209 energy 02 engineering and technology Modular design AC power Grid Energy storage Automotive engineering 020401 chemical engineering 0202 electrical engineering electronic engineering information engineering Redundancy (engineering) Voltage regulation 0204 chemical engineering business |
| Zdroj: | 2019 IEEE 5th International Conference for Convergence in Technology (I2CT). |
| DOI: | 10.1109/i2ct45611.2019.9033539 |
| Popis: | A new configuration combining Modular Multilevel Converter (MMC), battery and ultracapacitor is presented in this paper for active and reactive power support together. This type of system is denoted as hybrid E-STATCOM (Energy storage + STATCOM). Two different types of energy storage systems are considered here to support both high energy density and high power density loads. Battery and ultracapacitors are distributed at the dc-bus of MMC. The topology offers higher redundancy, modularity and lower losses compared to the conventional configurations, where energy storage units are lumped at the dc-link. The integration of two different energy storage systems with MMC and the associated control issues are discussed in this paper. The performance of the proposed configuration is verified for a Wind Energy Generation System (WEGS), where the E-STATCOM is employed to reduce fluctuation in the wind power and to provide reactive power for voltage regulation at PCC. A simulation model of the whole system is developed in PSCAD for performance evaluation and the results show satisfactory performance. |
| Databáze: | OpenAIRE |
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