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Control Techniques for LCL-Type Grid-Connected Inverters

Part of the book series: CPSS Power Electronics Series ((CPSS))

Abstract

After 200 years of continuous extraction and recent massive consumption, fossil fuels have rapidly become depleted. At the same time, the process of consuming fossil energy has produced a large amount of waste, which has seriously polluted the environment, jeopardizing the long-term sustainability of development of our society. The renewable energy-based distributed power generation system (RE-DPGS) has been attracting a great deal of attention due to its sustainable and environmental-friendly features, and its use represents an effective approach to dealing with future energy shortage and environmental pollution. As the energy conversion interface between the renewable energy power generation units and the grid, the grid-connected inverter plays an important role for the safe, stable, and high-quality operation of RE-DPGS. The worldwide energy situation is first reviewed in this chapter, and then, the typical configurations and the advantages of the RE-DPGS are introduced. The key control technologies of the LCL-type grid-connected inverter are also systematically elaborated including: (1) design and magnetic integration of LCL filter, (2) resonance damping methods, (3) design of controller parameters, (4) control delay effects and the compensation methods, (5) suppressing grid current distortion caused by grid-voltage harmonics, and (6) grid-impedance effects on system stability and the improvement methods.

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Authors and Affiliations

  1. College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu, China

    Xinbo Ruan

  2. Huazhong University of Science and Technology, Wuhan, Hubei, China

    Xuehua Wang, Donghua Pan, Weiwei Li & Chenlei Bao

  3. Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu, China

    Dongsheng Yang

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Ruan, X., Wang, X., Pan, D., Yang, D., Li, W., Bao, C. (2018). Introduction. In: Control Techniques for LCL-Type Grid-Connected Inverters . CPSS Power Electronics Series. Springer, Singapore. https://doi.org/10.1007/978-981-10-4277-5_1

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  • DOI: https://doi.org/10.1007/978-981-10-4277-5_1

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-10-4276-8

  • Online ISBN: 978-981-10-4277-5

  • eBook Packages: EngineeringEngineering (R0)

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