A method for determining the photovoltaic capacity of a substation

Abstract

The invention relates to a substation photovoltaic capacity determining method. The method comprises the steps of setting up a matching model of photovoltaic capacity and substation load capacity, initially determining the range of photovoltaic system capacity according to the restriction condition of the sum of the load used by the substation, setting up a power matching model of the photovoltaic capacity and urgent operation load, and determining the photovoltaic capacity. According to the substation photovoltaic capacity determining method, normal production load in the substation and urgent accident state load are considered, load characteristics under different conditions to solve the capacity of the substation photovoltaic system are combined. The method can be effectively matched with the requirements of the substation load and plays an active promoting role in improving the utilization rate of the substation photovoltaic system.

Description

technical field [0001] The invention belongs to the technical field of substation planning and design, in particular to a method for determining photovoltaic capacity of a substation. Background technique [0002] The introduction of photovoltaic systems in substations can achieve clean, environmentally friendly, energy-saving and efficiency-enhancing substations. [0003] However, limited by the characteristics of substation equipment layout and safe operation requirements, the access of photovoltaic systems in substations needs to meet many conditions, such as the characteristics and distribution of loads in the substation, short-term and long-term expansion, and the acceptance capacity of AC and DC systems. The most important factor is the actual demand of the load in the substation. On the one hand, the space resources in the substation are limited. Due to the limitation of operating state, too many photovoltaic systems are prone to generate excess power in emergency op...

AI Technical Summary

Problems solved by technology

The most important factor is the actual demand of the load in the substation. On the one hand, the space resources in the substation are limited. Due to the limitation of operating state, too many photovoltaic systems are prone to generate excess power in emergency operating state, which not only impacts photovoltaic equipment and station electrical equipment, but also reduces the life of equipment and causes energy waste, etc.

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