title: Large-scale hydropower system optimization using dynamic programming and object-oriented programming: the case of the Northeast China Power Grid.
abstract: This paper examines long-term optimal operation using dynamic programming for a large hydropower system of 10 reservoirs in Northeast China. Besides considering flow and hydraulic head, the optimization explicitly includes time-varying electricity market prices to maximize benefit. Two techniques are used to reduce the 'curse of dimensionality' of dynamic programming with many reservoirs. Discrete differential dynamic programming (DDDP) reduces the search space and computer memory needed. Object-oriented programming (OOP) and the ability to dynamically allocate and release memory with the C++ language greatly reduces the cumulative effect of computer memory for solving multi-dimensional dynamic programming models. The case study shows that the model can reduce the 'curse of dimensionality' and achieve satisfactory results.
authors: National Engineering Laboratory for Biomass Power Generation Equipment, Renewable Energy School, North China Electric Power University, Beijing 102206, China E-mail: jqli6688@163.com; jqli6688@ncepu.edu.cn.
authors: Ji-Qing
authors: JQ
authors: Li
authors: Office of the South-to-North Water Diversion Project Commission of the State Council, Beijing 100053, China.
authors: Yu-Shan
authors: YS
authors: Zhang
authors: National Engineering Laboratory for Biomass Power Generation Equipment, Renewable Energy School, North China Electric Power University, Beijing 102206, China E-mail: jqli6688@163.com; jqli6688@ncepu.edu.cn.
authors: Chang-Ming
authors: CM
authors: Ji
authors: National Engineering Laboratory for Biomass Power Generation Equipment, Renewable Energy School, North China Electric Power University, Beijing 102206, China E-mail: jqli6688@163.com; jqli6688@ncepu.edu.cn.
authors: Ai-Jing
authors: AJ
authors: Wang
authors: University of California, Davis, CA 95616, USA.
authors: Jay R
authors: JR
authors: Lund
mesh_terms: D002681:China; D008962:Models, Theoretical; D011210:Power Plants; D014881:Water Supply