Loading rate optimization of hybrid power supply system in self-adaptive dual-generator parallel operation

Abstract

Energy saving is a main concern of telecom operators to reduce TCO and improve market competition. Normally, single generator reaches the best fuel consumption rate when it works under 70%–85% loading rate. But in certain scenarios, the capacity of existing generator is not enough, thus more than one generator will work in parallel in the same hybrid power supply system; for instance in site sharing scenario when new tenants joins bringing larger load capacity, or in the scenario with single operator requires to increase site load capacity. In this case, how to optimize the loading rate of each generator? How to make the whole system energy efficiency reach the optimal performance? This paper introduces a self-adaptive dual-generator parallel operation system, and the optimization method of loading rate for each generator in the system, taking the hybrid system as a whole, that energy efficiency of the entire system achieves the best. In this paper, taking the dual-generator parallel system as an example, the principle of multi-generator is similar.