Control design and experimental verification of a multi-function single-phase bidirectional PWM converter for renewable energy systems

Control design and experimental verification of a multi-function single-phase bidirectional PWM converter for renewable energy systems

This paper proposes a multi-function control system for single-phase bidirectional PWM converters for renewable energy system applications. A common inner AC current-loop between the different modes helps to facilitate a seamless transition between them, where several individually designed outer loo...

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Bibliographische Detailangaben
Hauptverfasser: Dong Dong, Thacker, T., Burgos, R., Boroyevich, D., Wang, F., Giewont, B.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Analog-digital conversion
Control design
Control systems
Converter control
Energy storage
Frequency conversion
Hybrid power systems
Pulse width modulation
Pulse Width Modulation (PWM)
Pulse width modulation converters
Renewable energy resources
Renewable energy systems
Single-phase system
Voltage
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Beschreibung
Zusammenfassung:This paper proposes a multi-function control system for single-phase bidirectional PWM converters for renewable energy system applications. A common inner AC current-loop between the different modes helps to facilitate a seamless transition between them, where several individually designed outer loops alternatively perform the different regulation tasks, namely AC voltage, DC voltage, and DC current. The frequency-response based design procedure for the proposed control system is presented in detail for all the converter operating modes, and its performance is verified experimentally using a DSP-controlled 7 kW 120 V AC - 300 V DC laboratory prototype.