Multi-scenario Anti-disaster Planning For Urban Distribution Networks With Microgrids And Mobile Generators

This paper researches the urban distribution networks security problems of power supply in the condition of ice storm, war and other extreme situations from planning point of view. It proposes multi-scenario anti-disaster planning models of urban distribution networks taking extreme disaster situation into account. The proposed model can be applied in distribution networks with microgrids and mobile generators. The major work includes:(1) It presents scenarios and load classification methods which are more precise than those for traditional planning. Load is divided into extreme important, important, temporary and normal four categories. Scenarios are divided into normal, extreme important and sub-extreme important three categories.(2) It establishes the outage loss model and calculation method which is suitable for anti-disaster planning. This method can reflect the relationship of outage loss and users'types, composition of load and outage loss time. It can meet the need and adapt to characteristics of anti-disaster planning.(3) It presents an anti-disaster planning model and steps of urban distribution networks with microgrids. The model considers the reliability and economy of both the traditional peak load planning scenario and various disaster scenarios. It has shown that the proposed planning model has higher effectiveness and superiority than traditional planning model when both traditional and anti-disaster scenarios need to be considered.(4) It presents an anti-disaster planning model and planning steps of urban distribution networks with mobile generators. This method can optimally deploy the mobile generators according to the outage loss characteristics of different level loads in extreme and sub-extreme scenarios.(5) It researches integrated anti-disaster planning principles, methods, steps and practical application strategies of urban distribution network taking regional power plants, microgrids and mobile generators into account.By case study, it obtains laws that planning result changes according to sensitivity analysis of major parameters such as permeability and gives advices.