微电网供电多逆变器功率协同控制研究
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摘要
由于太阳能、风能这些能源具有随机性、不可预测性和间歇性等因素的影响,使得微电网逆变器在孤岛模式下的频率和电压难以控制。针对这一问题,提出了一种多逆变器在孤岛模式下的协同控制策略。在该控制策略下,当微电网供电功率或负荷大幅波动时,通过中央控制器将交流母线电压和频率检测值与设定值进行比较后,控制各逆变器输出功率。从而抑制了功率下降或上升的幅值,通过仿真软件验证了多逆变器在扰动下的动态特性,仿真结果表明,有效地控制各逆变器的功率输出,提高了逆变器在孤岛模式下的功率性能。
The wind power, solar power and other renewable energy is of unpredictability, randomness and intermittency, which leads to the certain difficulty in frequency and voltage control of the microgrid inverter in the islanding mode. Aiming at the above problem, in this paper, a synergetic control strategy of multiple inverters in islanding mode was proposed. Under this control strategy, when power supply power or load of the microgrid fluctuates sharply, after voltage of AC bus and frequency detection value were compared with the set value, the central controller control output power of all inverters, so as to suppress the amplitude of power down or up. Then simulink software was used to verify the dynamic characteristics of multi-inverters under disturbance, and the simulation results showed that controlling power output of multiple inverters effectively improved the power performance of inverters in islanding mode.
The wind power, solar power and other renewable energy is of unpredictability, randomness and intermittency, which leads to the certain difficulty in frequency and voltage control of the microgrid inverter in the islanding mode. Aiming at the above problem, in this paper, a synergetic control strategy of multiple inverters in islanding mode was proposed. Under this control strategy, when power supply power or load of the microgrid fluctuates sharply, after voltage of AC bus and frequency detection value were compared with the set value, the central controller control output power of all inverters, so as to suppress the amplitude of power down or up. Then simulink software was used to verify the dynamic characteristics of multi-inverters under disturbance, and the simulation results showed that controlling power output of multiple inverters effectively improved the power performance of inverters in islanding mode.
引文
[1] T Hosseinimehr, A Ghosh, F Shahnia. Cooperative control of battery energy storage systems in microgrids[J]. International Journalof Electrical Power & Energy Systems, 2017,87:109-120.
[2] 吕立召,等. 计划孤岛方式下微电源控制系统的仿真研究[J]. 计算机仿真, 2011,28(6): 304-307.
[3] M F M Arani, Y Mohamed. Cooperative Control of Wind Power Generator and Electric Vehicles for Microgrid Primary Frequency Regulation[J]. IEEE Transactions on Smart Grid, 2017.
[4] 郭蕾,苏建徽,施永. 微网孤岛运行模式下的调频控制策略[J]. 电力系统自动化, 2017,(8):110-115.
[5] C Huang, et al. Distributed cooperative control of energy storage units in microgrid based on multi-agent consensus method[J]. Electric Power Systems Research, 2017,147: 213-223.
[6] A Bidram, et al. Cooperative Control for DC Microgrids[M]. Cooperative Synchronization in Distributed Microgrid Control. Springer International Publishing, 2017:173-209.
[7] 王凌,等. 协同进化算法研究进展[J]. 控制与决策, 2015,(2):193-202.
[8] T Hosseinimehr, A Ghosh, F Shahnia. Cooperative control of battery energy storage systems in microgrids[J]. International Journal of Electrical Power & Energy Systems, 2017,87:109-120.
[9] S Li, et al. Distributed recurrent neural networks for cooperative control of manipulators: Agame-theoreticperspective[J]. IEEE transactions on neural networks and learning systems,2017,28(2):415-426.
[10] 杨捷,等. 一种适用于直流微电网的改进型电流负荷分配控制策略[J]. 中国电机工程学报, 2016,(1):59-67.
[11] P Ru, K Subbarao. Cooperative Control ofUnmanned Aerial Vehicles based on Nonlinear Model Predictive Control[C]. AIAA Guidance, Navigation,and Control Conference, 2017:1516.
[12] I Patrao, et al. Synchronization of Power Inverters inIslanded Microgrids Using an FM-Modulated Signal[J]. IEEE Transactions on Smart Grid, 2017,8(1):503-510.
[13] 徐明,陈华. 微电网供电系统孤岛问题优化检测仿真[J]. 计算机仿真, 2017,34(8): 133-137.
[14] 陈刚,李志勇,赵中原. 微电网系统的分布式优化下垂控制[J]. 控制理论与应用, 2016,(8):999-1006.
[15] M H J Bollen, et al. Power Quality Concerns in Implementing Smart Distribution-Grid Applications[J]. IEEE Transactions on Smart Grid,2017,8(1):391-399.
[16] S Y Lee, Y G Jin, Y T Yoon. Determining the optimal reserve capacity in a microgrid with islanded operation[J]. IEEE Transactions on Power Systems, 2016,31(2):1369-1376.
[17] 陈昕,等. 引入功率微分项下垂控制的逆变器并联系统小信号稳定性分析[J]. 电网技术, 2016,(11):3467-3475.
[18] 张勤进,等. 微源逆变器多模式运行协调控制策略研究[J].电机与控制学报, 2017,(2): 35-44.
[19] 张展望. 孤岛运行模式下微电网的分布式协调控制[D]. 西南交通大学, 2016.
[20] 王乃福. 微电网中多逆变器协调控制的研究[D]. 东北大学, 2011.
[2] 吕立召,等. 计划孤岛方式下微电源控制系统的仿真研究[J]. 计算机仿真, 2011,28(6): 304-307.
[3] M F M Arani, Y Mohamed. Cooperative Control of Wind Power Generator and Electric Vehicles for Microgrid Primary Frequency Regulation[J]. IEEE Transactions on Smart Grid, 2017.
[4] 郭蕾,苏建徽,施永. 微网孤岛运行模式下的调频控制策略[J]. 电力系统自动化, 2017,(8):110-115.
[5] C Huang, et al. Distributed cooperative control of energy storage units in microgrid based on multi-agent consensus method[J]. Electric Power Systems Research, 2017,147: 213-223.
[6] A Bidram, et al. Cooperative Control for DC Microgrids[M]. Cooperative Synchronization in Distributed Microgrid Control. Springer International Publishing, 2017:173-209.
[7] 王凌,等. 协同进化算法研究进展[J]. 控制与决策, 2015,(2):193-202.
[8] T Hosseinimehr, A Ghosh, F Shahnia. Cooperative control of battery energy storage systems in microgrids[J]. International Journal of Electrical Power & Energy Systems, 2017,87:109-120.
[9] S Li, et al. Distributed recurrent neural networks for cooperative control of manipulators: Agame-theoreticperspective[J]. IEEE transactions on neural networks and learning systems,2017,28(2):415-426.
[10] 杨捷,等. 一种适用于直流微电网的改进型电流负荷分配控制策略[J]. 中国电机工程学报, 2016,(1):59-67.
[11] P Ru, K Subbarao. Cooperative Control ofUnmanned Aerial Vehicles based on Nonlinear Model Predictive Control[C]. AIAA Guidance, Navigation,and Control Conference, 2017:1516.
[12] I Patrao, et al. Synchronization of Power Inverters inIslanded Microgrids Using an FM-Modulated Signal[J]. IEEE Transactions on Smart Grid, 2017,8(1):503-510.
[13] 徐明,陈华. 微电网供电系统孤岛问题优化检测仿真[J]. 计算机仿真, 2017,34(8): 133-137.
[14] 陈刚,李志勇,赵中原. 微电网系统的分布式优化下垂控制[J]. 控制理论与应用, 2016,(8):999-1006.
[15] M H J Bollen, et al. Power Quality Concerns in Implementing Smart Distribution-Grid Applications[J]. IEEE Transactions on Smart Grid,2017,8(1):391-399.
[16] S Y Lee, Y G Jin, Y T Yoon. Determining the optimal reserve capacity in a microgrid with islanded operation[J]. IEEE Transactions on Power Systems, 2016,31(2):1369-1376.
[17] 陈昕,等. 引入功率微分项下垂控制的逆变器并联系统小信号稳定性分析[J]. 电网技术, 2016,(11):3467-3475.
[18] 张勤进,等. 微源逆变器多模式运行协调控制策略研究[J].电机与控制学报, 2017,(2): 35-44.
[19] 张展望. 孤岛运行模式下微电网的分布式协调控制[D]. 西南交通大学, 2016.
[20] 王乃福. 微电网中多逆变器协调控制的研究[D]. 东北大学, 2011.