【摘要】 提出了由谐波电能计量单元(AD73360L+ADSP-BF533)、谐波电能主机功能单元(M30624FGPFP)和电源管理3个部分组成的三相多功能谐波电能表的构成方案。介绍了谐波电能主机功能单元的硬件/功能设计、主程序流程图,多功能谐波电能表遗信遵循DL/T645-2007规约,给出了通信程序流程图。研制后的多功能谐波电能表实验表明,其性能及功能符合GB/T17883-1999和DL/T614-1997规定,测量准确度达到基波有功测量误差≤0.2%,基波无功测量误差≤1%,2～21次谐波电压测量误差≤2%、谐波电流测量误差≤5%、谐波相位测量误差≤5°,满足GB/T-14549-93的A类谐波测量仪器要求。更多还原

【Abstract】 A three-phase multi-functional harmonic energy meter is designed,composed of measurement board(AD73360L+ADSP-BF533),host function board(M30624FGPFP) and power supply management. The hardware and function design of host function unit and the main flowchart are introduced.The commu- nication protocol observes the DL/T614-2007 and the communication flowchart is given.Experiments show that its performances and functions meets the requirements of GB/T17883-1999,with the measure- ment error of fundamental active power less than 0.2%,that of fundamental reactive power 1%,that of 2nd～21st harmonic voltages 2%,that of harmonic current 5%,and that of phase angle 5°.It meets the accuracy requirement of the harmonic measurement instruments of class A according to GB/T-14549-93.更多还原