一种适合于三相多功能变流系统的控制策略

Study on Control Strategy for Three-phase Multifunctional Converter System

针对电网中日益严重的谐波以及功率因数过低的现象,在基于瞬时功率理论的控制策略(IPT)、同步功率传输控制策略(SPF)及单位功率因数控制策略(UPF)的基础之上,提出了一种适合于三相多功能变流系统的功率因数任意可控策略。利用计算机仿真,全面比较了此控制策略与其他控制策略在各种电网电压条件下的性能。结果表明:此控制策略既能对电网输出电流进行控制,又可对功率因数的控制。

As harmonics of supply has become more and more serious and the low power factor, based on the instantaneous power theory control strategy (IPT),the synchronous power flow control strategy (SPF) and the unity power factor control strategy (UPF), a control strategy for three-phase multifunctional converter system is proposed. The steady and transient compensation performances of these strategies are compared through computer simulation on the condition of ideal and un-ideal supply voltage. The result shows this method that can control the current of supply and power factor.