Analysis of one fast networked control system for parallel operation of inverters

In this paper, two power-sharing strategies of the fast networked control system for inverter parallel operation is proposed, which differs in transmission signals of power. Because of the rapidity of control period, the transmission time-delay can not be ignored. After the description of implementation method and mathematical modeling of systems, two control strategies are carried out the comparison of powersharing performance. The prediction method of stability condition with time-delay is presented. In addition, one networked control strategy is chosen in practical application. The experimental results demonstrate the validity of these schemes.