LCL grid-connected inverter resonance suppression system and LCL grid-connected inverter resonance suppression method

The invention provides an LCL grid-connected inverter resonance suppression system based on a double-model predictive control loop, and the system comprises a sampling module which carries out the sampling of an inverter side voltage and a filter component, calculates a modulation degree according t...

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Bibliographische Detailangaben
Hauptverfasser:	ZHANG LIANG, YU MOUZHAN, LI CHUNYANG, WEN LEI, HE YIGANG, YAN HAO, XIE WEIWEI, YU TENGHUI, SUNG JIN-WON, ZHA XIAOXIAN, JIN ZHANXIANG, ZHANG HUI, ZHU CHENGZHUO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	The invention provides an LCL grid-connected inverter resonance suppression system based on a double-model predictive control loop, and the system comprises a sampling module which carries out the sampling of an inverter side voltage and a filter component, calculates a modulation degree according to the inverter side voltage, and carries out the calculation of the modulation degree according to the filter component. The inverter side voltage, the filter component and the modulation degree are input into an asymmetric optimization pulse mode control system; in the asymmetric optimization pulse mode control system, a switching sequence is calculated according to a modulation degree and a preset pulse mode freedom degree, a first reference flux linkage is calculated according to the switching sequence, an actual flux linkage is calculated according to an inverter side voltage and a time signal, and a second reference flux linkage is calculated according to the actual flux linkage. And overlapping a filter compo