Photovoltaic power generation system bi-directional DC-DC converter based on DSP

• Main Authors: ZHU BAORONG, WANG RONGHUI, HU SUPING, DENG ZHU, HUANG PINGNA, LIU JUNHAO
• Format: Patent
• Language: English
• Published: 25.02.2015
• Subjects: 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; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERATION; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

The utility model discloses a photovoltaic power generation system bi-directional DC-DC converter based on a DSP. The photovoltaic power generation system bi-directional DC-DC converter comprises a power source, a signal collecting circuit, a DSP control system, a protection circuit, a bi-directional DC-DC main circuit and other circuits. The photovoltaic power generation system bi-directional DC-DC converter is characterized in that the DSP control system is connected with the power source, the signal collecting circuit, the protection circuit, the bi-directional DC-DC main circuit and the other circuits, and the bi-directional DC-DC main circuit is further connected with the signal collecting circuit. According to the system, a non-isolated bidirectional DC-DC conversion topological structure is adopted as the main circuit of the converter, the circuit structure is simplified, the voltages of a solar cell end can be recognized, a charging mode and a discharging end are switched automatically and fast, a DSP system is adopted as a signal processing unit, and the signal processing speed of the system is improved, so that the whole system has the advantages of being low in power consumption, excellent in performance, high in integration degree, large in data and program storage amount, and more precise and faster in signal conversion.