Abstract：Passivity-based control method is used to overcome the problem that the stability of Buck converter with constant power load(CPL) can be reduced or even unstable in this paper. Considering the existence of parasitic resistance in the converter, the control performance of the controller will be reduced. In this paper, taking effects caused by the parasitic resistance of converter as unknown disturbance, the disturbance is observed by using of extended state observer, and real-time compensated by passivity-based controller. For the problem that the general nonlinear function in extend state observer (ESO) will appear unbounded, this paper improves it to make it easier to be used in practical engineering. The influence of passivity-based control parameters on the performance of the steady and dynamic of the system is analyzed by using zero-pole map and other tools. The correctness of the method proposed in this paper is proved by computer simulation.
崔健, 王久和, 李建国, 张巧杰. 基于扩张状态观测器估计补偿的Buck变换器带恒功率负载无源控制[J]. 电工技术学报, 2019, 34(zk1): 171-180.
Cui Jian, Wang Jiuhe, Li Jianguo, Zhang Qiaojie. Research on Passivity-Based Control of Buck Converter with Constant Power Load Based on Extend State Observer Estimating and Compensating. Transactions of China Electrotechnical Society, 2019, 34(zk1): 171-180.
[1] 张晓雪, 牛焕娜, 赵静翔. 含微电网的配电网优化调度[J]. 电工技术学报, 2017, 32(7): 165-173. Zhang Xiaoxue, Niu Huanna, Zhao Jingxiang.Optimal dispatch method of distribution network with microgrid[J]. Transactions of China Electrotechnical Society, 2017, 32(7): 165-173. [2] McCalley James D, Vittal V, Abi-Samra N. An overview of risk based security assessment[C]//IEEE Power Engineering Society Summer Meeting, Edmonton, Alta, Canada, 1999, VI: 173-178. [3] 贺悝, 李勇, 曹一家, 等. 考虑分布式储能参与的直流配电网电压柔性控制策略[J]. 电工技术学报, 2017, 32(10): 101-110. He Li, Li Yong, Cao Yijia, et al.Flexible voltage control strategy of DC distribution network con- sidering distributed energy storage[J]. Transactions of China Electrotechnical Society, 2017, 32(10): 101-110. [4] 孙小兵. 世界能源新格局下中国的能源安全问题[J]. 南方能源建设, 2014, 1(1): 16-24. Sun Xiaobing.Discussion of China's energy security in the new world energy pattern[J]. Energy Con- struction, 2014, 1(1): 16-24. [5] 肖浩, 裴玮, 邓卫, 等. 分布式电源对配电网电压的影响分析及其优化控制策略[J]. 电工技术学报, 2016, 31(增刊1): 203-213. Xiao Hao, Pei Wei, Deng Wei, et al.Analysis of the impact of distributed generation on distribution network voltage and its optimal control strategy[J]. Transactions of China Electrotechnical Society, 2016, 31(S1): 203-213. [6] Carmen L T, Djalma M.Optimal distributed generation allocation for reliability, losses, and voltage improvement[J]. Electrical Power and Energy Systems, 2006, 28(6): 413-420. [7] 叶德意, 何正友, 臧天磊. 基于自适应变异粒子群算法的分布式电源选址与容量确定[J]. 电网技术, 2011, 35(6): 155-160. Ye Deyi, He Zhengyou, Zang Tianlei.Siting and sizing of distributed generation planning based on adaptive mutation particle swarm optimization algorithm[J]. Power System Technology, 2011, 35(6): 155-160. [8] 刘文霞, 徐慧婷. 考虑电压控制成本的分布式电源优化配置[J]. 电网技术, 2016, 40(10): 2998-3005. Liu Wenxia, Xu Huiting.Optimal distributed generator allocation method considering voltage control cost[J]. Power System Technology, 2016, 40(10): 2998-3005. [9] El-Ela A A, Allam S M, Shatla M M. Maximal optimal benefits of distributed generation using genetic algorithms[J]. Electric Power System Research, 2010, 80(7): 869-877. [10] 李亮, 唐巍, 白牧可, 等. 考虑时序特性的多目标分布式电源选址定容规划[J]. 电力系统自动化, 2013, 37(3): 58-63. Li Liang, Tang Wei, Bai Muke, et al.Multi-objective locating and sizing of distributed generators based on time-sequence characteristics[J]. Automation of Electric Power Systems, 2013, 37(3): 58-63. [11] 吕智林, 谭颖, 李捷, 等. 基于Markov-ELM的独立混合微网DG多目标容量优化配置[J]. 中国电机工程学报, 2017, 37(7): 1927-1937. Lü Zhilin, Tan Ying, Li Jie, et al.Multi-objective optimal sizing for distributed generation of isolated hybrid microgrid using Markov-based electromagnetism- like mechanism[J]. Proceedings of the CSEE, 2017, 37(7): 1927-1937. [12] 肖峻, 郭伟, 俞伟, 等. 高中压配电网的一体化安全性校验方法[J]. 高电压技术, 2016, 42(7): 2047-2053. Xiao Jun, Guo Wei, Yu Wei, et al.Assessment method for integrated security of HV and MV distribution network[J]. High Voltage Engineering,2016, 42(7): 2047-2053. [13] 吴文传, 宁辽逸, 张伯明, 等. 电力系统在线运行风险评估与决策[J]. 电力科学与技术学报, 2006, 24(2): 28-34. Wu Wenchuan, Ning Liaoyi, Zhang Boming, et al.Online operational risk assessment and decision making for power systems[J]. Journal of Electric Power Science and Technology, 2006, 24(2): 28-34. [14] 何成明, 王洪涛, 王春义, 等. 风电功率爬坡事件作用下考虑时序特性的系统风险评估[J]. 电力自动化设备, 2016, 36(1): 35-41. He Chengming, Wang Hongtao, Wang Chunyi, et al.Risk assessment considering time-sequence characte- ristics for power system with wind power ramp event[J]. Electric Power Automation Equipment, 2016, 36(1): 35-41. [15] 陈为化, 江全元, 曹一家. 基于风险理论和模糊推理的电压脆弱性评估[J]. 中国电机工程学报, 2005, 25(24): 20-25. Chen Weihua, Jiang Quanyuan, Cao Yijia.Voltage vulnerability assessment based on risk the theory and fuzzy reasoning[J]. Proceedings of the CSEE, 2005, 25(24): 20-25.
2019, Vol. 34 
