針對供水企業降低水泵的能耗和維護成本，設計了一種基于DSP變頻自動恒壓供水系統。采用TMS320F240 DSP和一臺160 kW大功率變頻器控制三臺大功率水泵電機實現對某水廠的變頻自動恒壓供水控制;詳細分析了其硬件組成和DSP編程原理。實驗運行表明，此系統運行穩定可靠、穩壓精度高、節能效果明顯，具有很好的經濟效益。
關鍵詞:變頻器 恒壓 供水能耗

Abstract: To against the problem of lowering energy consumption and maintenance cost in water supplying enterprises, a DSP based frequency conversion automatic constant-pressure water supplying system is designed. Three large power water pumps are controlled by TMS320F149 DSP and one 160 kW large power frequency converter. Thus constant-pressure water supplying is implemented for certain water works. The hardware composition and DSP programming principle are analyzed in detail. The experimental operation shows that the system is stably running with precise pressure control and excellent economical effects.
Keywords:F requencyc onverter Constant-pressurew atersu pplyings ystem Energyc onsumption