中文摘要：

金属卤化物灯在场馆照明领域广泛应用,这种高强度气体放电灯电路本身含有电弧,它的负阻特性产生谐波电流,与其配合使用的电子镇流器也产生大量谐波,成为了主要的谐波源.文中分别采用分段线性拟合和多项式曲线拟合的方法在PSCAD/EMTDC上建立了2500W金卤灯以及三级电子镇流器的模型,分析模型运行时电网侧的谐波电流情况,并将仿真结果与深圳大运会体育场馆照明回路的实测数据进行对比,验证了模型的准确性.

英文摘要：

Metal halide lamp,a kind of high-intensity gas discharge lamp with the circuit containing the arc,is widely used in stadium lighting.Its negative resistance characteristics bring about harmonic current,and the corresponding electronic ballasts,which are the main harmonic sources,also generate a large number of electrical harmonics.In this paper,the piecewise linearization method and the polynomial curve fitting method are used to establish an electrical model of 2500W metal halide lamp and a model of three-level electronic ballasts on PSCAD/ EMTDC.The proposed models are then employed to analyze the grid-side harmonic current,and the simulation results are compared with the measured data of the lighting circuits of the venues for Shenzhen 26th Summer Universiade.The accuracy of the proposed models is thus verified.