| Parallel operation of distributed generation will lead to a greater impact on safe and stable operation of power grid. The local consumption and storage of distributed generation can make use of distributed generations more efficiently, and solve the problem of distributed access. For those distributed generation whose output is DC power, make them into DC network can reduce the power conversion loss and control complexity. At the same time, the DC load of the user side is also increasing, it is important to research the application of distributed generation in DC network. DC electric energy router is the key equipment to achieve allocation of power and energy bidirectional flow.This paper designed the DC power router and energy distribution algorithm. The DC power router includes controller, switch array, communication module, detection module and bidirectional DC-DC converter circuit. It can realize the voltage conversion, real-time communication and circuit switching function.The article provides two kinds of transmission strategy:(1) High frequency electronic switch can be segmented DC power and add information labels on it, called a power package, and be transted by power router. (2) By controlling the switch array, the power is switched directly. Power router can achieve the exchange information and circuit of regional or inter regional, optimize and flexible management within the cell and the cell boundary of power and avoid congestion.The energy allocation algorithm is designed based on the successive shortest path can routing algorithm. First, power router calculated optimal power-load matching and routing, and then use the path resource reservation method for power-load to keep power transmission channel. In the process of power transmission, direct relay is used to provide slots switching and transmission of different power packets. Finally, the power allocation and routing algorithm are simulated by MATLAB, and the results are compared with the parameter variation. |
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