基于预测方法的直流微网混合储能虚拟惯性控制Virtual Inertia Control of Hybrid Energy Storage in DC Microgrid Based on Predictive Method
于明;王毅;李永刚;
摘要(Abstract):
为增强直流微网扰动抑制能力,使直流侧电压在系统扰动时呈现惯性响应特性,提出了一种基于变流器预测控制的直流微网混合储能系统虚拟惯性控制策略。该方法采用微网储能系统变流器作为虚拟惯性控制单元,增加直流电压变化作为控制输入变量,增强了其暂态运行稳定性。此外,为提高直流微网本地控制速度,以配合储能系统的快速惯性调节,避免因控制延时造成的滞后控制现象,提出了基于模型预测方法的储能变流器本地控制方法,并采用由蓄电池和超级电容组成的混合储能系统,以弥补蓄电池充放电速率较慢的缺点。基于Matlab建立了风电直流微网系统仿真模型,仿真结果验证了所提策略的有效性。
关键词(KeyWords): 直流微网;虚拟惯性;模型预测控制;混合储能
基金项目(Foundation): 国家863高技术基金项目(2015AA050101)~~
作者(Author): 于明;王毅;李永刚;
Email:
DOI: 10.13335/j.1000-3673.pst.2016.1947
参考文献(References):
- [1]Nejabatkhah F,Li Y W.Overview of power management strategies of hybrid AC/DC microgrid[J].IEEE Transactions on Power Electronics,2015,30(12):7072-7089.
- [2]Chung I,Liu W,Cartes D A,et al.Control methods of inverter-interfaced distributed generators in a microgrid system[J].IEEE Transactions on Industry Applications,2010,46(3):1078-1088.
- [3]Eghtedarpour N,Farjah E.Power control and management in a hybrid AC/DC microgrid[J].IEEE Transactions on Smart Grid,2014,5(3):1494-1505.
- [4]Kakigano H,Miura Y,Ise T.Low-voltage bipolar-type DC microgrid for super high quality distribution[J].IEEE Transactions on Power Electronics,2010,25(12):3066-3075.
- [5]Guerrero J M,Vasquez J C,Matas J,et al.Hierarchical control of droop-controlled AC and DC microgrids-a general approach toward standardization[J].IEEE Transactions on Industrial Electronics,2011,58(1):158-172.
- [6]Liu X,Wang P,Loh P C.A hybrid AC/DC microgrid and its coordination control[J].IEEE Transactions on Smart Grid,2011,2(2):278-286.
- [7]Ahmadi R,Ferdowsi M.Improving the performance of a line regulating converter in a converter-dominated DC microgrid system[J].IEEE Transactions on Smart Grid,2014,5(5):2553-2563.
- [8]Majumder R.Some aspects of stability in microgrids[J].IEEE Transactions on Power Systems,2013,28(3):3243-3252.
- [9]Alaboudy A H K,Zeineldin H H,Kirtley J L.Microgrid stability characterization subsequent to fault-triggered islanding incidents[J].IEEE Transactions on Power Delivery,2012,27(2):658-669.
- [10]Azmy A M,Erlich I.Impact of distributed generation on the stability of electrical power system[C]//IEEE Power Engineering Society General Meeting.San Francisco:IEEE,2005:1056-1063.
- [11]Chen D,Xu L,Yao L Z.DC voltage variation based autonomous control of DC microgrids[J].IEEE Transactions on Power Delivery,2013,28(2):637-648.
- [12]Katiraei F,Iravani M R,Lehn P W.Micro-grid autonomous operation during and subsequent to islanding process[J].IEEE Transactions on Power Delivery,2005,2(1):248-257.
- [13]Hu J,Zhu J,Dorrell D G.Model predictive control of inverters for both islanded and grid-connected operations in renewable power generations[J].IET Renewable Power Generation,2014,8(3):240-248.
- [14]Geyer T,Papafotiou G,Morari M.Model predictive direct torque control part i:concept,algorithm,and analysis[J].IEEE Transactions on Industry Electronics,2009,56(3):1894-1905.
- [15]Hu J,Zhu J,Zhang Y,et al.Predictive direct virtual torque and power control of doubly fed induction generators for fast and smooth grid synchronization and flexible power regulation[J].IEEE Transactions on Power Electronics,2013,28(7):3182-3194.
- [16]王海波,杨秀,张美霞.平抑光伏系统波动的混合储能控制策略[J].电网技术,2013,37(9):2452-2458.Wang Haibo,Yang Xiu,Zhang Meixia.A control strategy of hybrid energy storage system capable of suppressing output fluctuation of photovoltaic generation system[J].Power System Technology,2013,37(9):2452-2458(in Chinese).
- [17]王毅,于明,李永刚.基于改进微分进化算法的风电直流微网能量管理[J].电网技术,2015,39(9):2392-2397.Wang Yi,Yu Ming,Li Yonggang.Energy management of wind turbine-based DC microgrid using improved differential algorithm[J].Power System Technology,2015,39(9):2392-2397(in Chinese).
- [18]Soni N,Doolla S,Chandorkar M C.Improvement of transient response in microgrids using virtual inertia[J].IEEE Transactions on Power Delivery,2013,28(3):1830-1838.
- [19]Strunz K,Abbasi E,Huu D N.DC microgrid for wind and solar power integration[J].IEEE Journal of Emerging and Selected Topics in Power Electronics,2014,2(1):115-126.
- [20]程志江,李永东,谢永流,等.带超级电容的光伏发电微网系统混合储能控制策略[J].电网技术,2015,39(10):2739-2745.Cheng Zhijiang,Li Yongdong,Xie Yongliu,et al.Control strategy for hybrid energy storage of photovoltaic generation microgrid system with super capacitor[J].Power System Technology,2015,39(10):2739-2745(in Chinese).