CAJ | 학술논문

针对现有变电站直流系统直流泄漏电流测量传感器需要现场布线，灵活性差等问题，研制了基于CC2530 IEEE 802．15．4／ZigBee片上资源的新型直流泄漏电流测量终端，并进行了测量精度和通信可靠性测试。其中电流传感模块基于霍尔磁平衡的穿芯式小电流传感器实现，主控单元模块基于CC2530实现测量信号的数字化、传输以及电源管理等功能。测试结果表明，研制的测量终端量程为0～20 mA，能有效分辨50μA的电流，室内环境有效通信距离可达50 m。
침대현유변전참직류계통직류설루전류측량전감기수요현장포선，령활성차등문제，연제료기우CC2530 IEEE 802．15．4／ZigBee편상자원적신형직류설루전류측량종단，병진행료측량정도화통신가고성측시。기중전류전감모괴기우곽이자평형적천심식소전류전감기실현，주공단원모괴기우CC2530실현측량신호적수자화、전수이급전원관리등공능。측시결과표명，연제적측량종단량정위0～20 mA，능유효분변50μA적전류，실내배경유효통신거리가체50 m。
For DC leakage current measuring sensor in the existing substation DC system needs field wiring and lack of flexibility,a new DC leakage current measuring terminal was developed based on the on-chip resources of CC2530 IEEE 802.15.4/ZigBee,and the measuring accuracy and reliability of the communication test was carried out.The developed measuring terminal is made up of a current sensing module,a main control unit module and a power source module,where the current sensing module is designed based on the through core type small current sensor work on Holler-magnetic balance principle,the main control module is based on CC2530 chip to realize measuring signal digitization,transmission and power management.The test results show that the measuring range of developed measurement terminal is 0~20 mA and the resolution is 50 μA,the indoor environment effective communication distance up to 50 m.