Evalution and control method of variable-speed refrigerator in demand side management

Demand side control is used in many residential appliances, which is beneficial to power grid. For the reason of large daily power consumption, refrigerator can provide power reserve. The refrigerator with variable speed compressor have occupied more share, for it consumes less energy and also have a more flexible refrigerating performance. The purpose of this paper is propose a control method for variable speed compressor with BLDC motor. This method can help grid to alleviate the power imbalance problem. Simulation is down to evaluate this method.