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中文摘要：
直流模块式建筑集成光伏（building integrated photovoltaic，BIPV）系统由大量并联于直流母线的光伏直流建筑模块和集中逆变模块构成，具有能量转化效率高、可扩展性和可维护性好等优势，适合于建筑集成应用。然而在直流模块式BIPV系统中，每个光伏直流建筑模块的输出能量随着光照、温度等因素变化，具有较强的随机性，同时大量光伏直流建筑模块的并联进一步增加了系统内部能量流的复杂性，因此需要协调控制系统中大量的光伏直流建筑模块和集中逆变模块，保证系统能量平衡和稳定运行。该文首先分析了直流模块式BIPV系统协调控制的原理，提出一种基于直流母线电压恒定的协调控制策略；建立适用于系统协调控制器分析和设计的精确动态模型，给出一种系统协调控制器的设计方法；并通过实验验证了所提出的协调控制策略的有效性。
英文摘要：
DC-module-based building integrated photovoltaic （BIPV） system, which has some advantages such as high energy conversion efficiency, good expandability and maintainability, consists of photovoltaic DC building module and centralized inverter, and is propitious to the building integrated application. However, the output power of every photovoltaic DC building module in the DC-module-based BIPV system is random and varies with illumination, temperature, et al. Furthermore, the parallel of many photovoltaic DC building modules ulteriorly increase the complexity of energy flow in the system. Consequently the coordinate control between the photovoltaic DC building modules and the centralized inverter is necessary to achieve energy balance and stability. Firstly the coordinate control hypostasis of the DC-module-based BIPV system was analyzed, and a coordinate control strategy based on constant of the DC bus voltage was proposed. Then the accurate dynamic model was built to analyze and design the coordinate controller, and a design method was presented. Finally the experimental results on a DC-module-based BIPV prototype verify the validity of the proposed coordinate control strategy.
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