Numerical simulation is used for researching the transient characteristic and internal characteristic of the reactor coolant pump under station blackout accident. The simulation method has been presented by analyzing difference scheme for governing equations. The analytical model of reactor coolant pump flow field has been established by analyzing adequately the influence of varying rotation speed to the pump external characteristic. Finally, the pump internal flow characteristic is exposed.

Model-Based Design (MBD) method is applied to power electronics device software development to overcome the problem of low efficiency in manual programming. The concept of Model-Based Design and several common development platforms are introduced. Based on tools in Simulink, an on-board charger control software is developed. Meanwhile the hardware platform, the model building, the model validation and the automatic code generation are also described. Experiments are carried out in the hardware platform to verify the correctness and feasibility of the codes.They are helpful for the software development of power electronics equipments.

Nowadays, the power load has been well increased and the differences between the crest and the valley of the load has become larger and larger. At the same time, the central air conditioning system plays a more important role in modern life and it has the potential to change these differences. In this paper, in view of a building’s central air conditioning system, central air conditioning system’s power load unload model have been built. A method of calculation of the ability of central air conditioning to unload the load which is based on comfort has been proposed. And it uses the enumeration method for solving optimization of the unloading. Via this research, we can figure out how much load can be unloaded to ease the crest and the valley of the load. And how can we minimize the loss of comfort can also be published.

Smart Distribution Grid and Utilization are the important support for the development of Smart City and Smart Grid, meanwhile, the effective data communication and information exchange are the key points to implement them. First, analyze the unified communication method of Smart Distribution Grid and Utilization for each specific business. Then, respectively, from the current reality and future trends, propose two typical implementation:the interface adapter pattern and the integrated pattern, and establish specific implementation patterns, deployment patterns, and pattern evaluations, so as to provide the design of pattern level for the development of Smart Distribution Grid and Utilization.

The uncertainty of driving area, the power load control of charging facility and charging rates make electric vehicles(EVs) facing different charging facilities, so it is necessary to control charging in the charging process. An adaptive electric vehicle charging control strategy was proposed in this paper. The strategy uses wifi for communication, communicating with charging pile through wifi, charging facilities and electric vehicles can exchange parameters to achieve adaptive control of the charging process. And experiment was conducted for verification.