基于双闭环线性积分的高功率因数直流电子负载研究
High Power Factor DC Electronic Load Research Based on the Double Closed-Loop Linear Integral

作者: 吴佳彬 , 裴荣 :南京理工大学,江苏 南京;

关键词: 线性积分电子负载自适应控制算法功率因数Linear Integral Electronic Load Adaptive Control Algorithm Power Factor

摘要: 针对单闭环直流电子负载系统,研究了一种新型的基于双闭环线性积分的电子负载系统。外环主要利用PI调节器来消除静态偏差,同时提高转换速率,内环采用软硬件相结合的方法,利用低功耗微机控制滞环比较器,并研究了自适应控制算法用于控制PWM波的输出,使系统的功率因数得到了大幅提高。分析电子负载主要的干扰,设计光耦线性隔离方案,在负载端新添保护电路和通信接口,可以保证数据的安全性和完整性。最后实验结果表明,系统的功率因数提高至0.96,验证了该研究的可行性。

Abstract: According to single closed-loop DC electronic load system, this article studies a new type of elec-tronic load system based on double closed-loop linear integrals. The outer ring mainly uses PI regulator to eliminate static deviation and improve the conversion rate. The inner ring uses low power microcomputer control hysteresis comparator by the method of combining the software and hardware. Meanwhile this article studies the self-adaptation control algorithm to control the PWM. This way greatly improves the power factor of system. This article analyzes the interference of the electronic load and designs the scheme of linear opto-couple. In order to ensure security and integrity of the data, the protection circuit and the communication interface are added at the end of the load. Finally the experimental results show that the power factor of system has increased by 0.93 and verify the feasibility of the study.

文章引用: 吴佳彬 , 裴荣 (2016) 基于双闭环线性积分的高功率因数直流电子负载研究。 传感器技术与应用, 4, 57-63. doi: 10.12677/JSTA.2016.42007

参考文献

[1] 王亚玲. 能馈式交流电子模拟负载的研究[D]: [硕士学位论文]. 济南: 山东大学, 2009.

[2] 张厚升, 赵艳雷. DSP控制的能量回馈型交流电子负载设计[J]. 电力自动化设备, 2011, 31(12): 110-114.

[3] 李芬, 邹旭东, 吴振兴, 邹云屏, 等. 采用LCL滤波器并网的交流电子负载[J]. 高电压技术, 2009, 35(10): 2552-2558.

[4] 田召广, 王玉斌, 吕燕, 李英俊. 单周控制APF稳态工作过程分析和PI调节器设计[J]. 电力自动化设备, 2006, 26(9): 39-42.

[5] 鲍陈磊, 阮新波, 王学华, 潘冬华, 等. 基于PI调节器和电容电流反馈有源阻尼的LCL型并网逆变器闭环参数设计[J]. 中国电机工程学报, 2012, 32(25): 133-142.

[6] Tsang, K.M. and Chan, W.L. (2012) Fast Acting Regenerative DC Electronic Load Based on a SEPIC Converter. IEEE Transactions on Power Electronics, 27, 269-275.
http://dx.doi.org/10.1109/TPEL.2011.2158446

[7] Yang, W., Qiu, L.J. and Wang Y.X. (2014) Single-Ended forward Switching Power Supply Design Based on UCC2800 PWM Controller. Applied Mechanics and Materials, 492, 489-492.

[8] Maniktala, S. (2004) Switching Power Supply Design and Optimization. McGraw-Hill, New York.

[9] Maniktala, S. (2012) Switching Power Supplies A-Z. Elsevier (Singapore) Pte Ltd., New York.

[10] 张培. 一种新型高效LED背光源驱动控制电路设计[J]. 电源技术, 2013, 37(10): 1867-1870.

[11] 胡国珍, 马学军, 严伟, 方支剑. 一种高精度恒流源直流电子负载研究[J]. 测控技术, 2015, 34(1): 107-111.

[12] 张厚升, 李素玲, 赵艳雷. 能馈型双PWM变换器交流电子负载研究[J]. 电力系统保护与控制, 2011, 39(14): 129-132.

[13] 衡耀付, 陈富军. 一种基于UC3842的新型开关稳压电源设计[J]. 电力自动化设备, 2009, 29(9): 133-137.

分享
Top