单片机与嵌入式系统应用
單片機與嵌入式繫統應用
단편궤여감입식계통응용
MICROCONTROLLER & EMBEDDED SYSTEM
2012年
2期
54-56,60
,共4页
DC—AC逆变%SPWM%频率相位跟踪%最大功率点跟踪
DC—AC逆變%SPWM%頻率相位跟蹤%最大功率點跟蹤
DC—AC역변%SPWM%빈솔상위근종%최대공솔점근종
DC - AC inverter power%SPWM%frequency phase tracking%MPPT
并网发电系统以PIC16F877A单片机为核心,由DC—AC逆变电路、LC滤波电路、工频变压隔离器及调理电路构成。系统具有最大功率点(MPPT)、频率相位跟踪功能;具有过流、欠压、过压等保护功能,当系统故障排除后还可自动恢复正常工作;具有LCD液晶显示,具备良好的人机交互能力。
併網髮電繫統以PIC16F877A單片機為覈心,由DC—AC逆變電路、LC濾波電路、工頻變壓隔離器及調理電路構成。繫統具有最大功率點(MPPT)、頻率相位跟蹤功能;具有過流、欠壓、過壓等保護功能,噹繫統故障排除後還可自動恢複正常工作;具有LCD液晶顯示,具備良好的人機交互能力。
병망발전계통이PIC16F877A단편궤위핵심,유DC—AC역변전로、LC려파전로、공빈변압격리기급조리전로구성。계통구유최대공솔점(MPPT)、빈솔상위근종공능;구유과류、흠압、과압등보호공능,당계통고장배제후환가자동회복정상공작;구유LCD액정현시,구비량호적인궤교호능력。
The grid-connected system is designed based on PIC16F877A microcontroller as the core, by the DC-AC inverter circuit, LC filter circuit, frequency transformer isolators and conditioning circuit. The system has a maximum power point (MPPT) and frequency phase tracking. Overcurrent, undervoltage, overvoltage protection,etc, enable the system automatically resume normal work after trou bleshooting. LCD display provides with a good interactive performance.