With the continuous increase of penetration rate of clean energy such as distributed photovoltaic in distribution network,the energy pressure has been effectively alleviated.However,the problem of voltage violation at point of interconnection cannot be ignored.For this reason,an adaptive control strategy for reactive voltage of distribution network with distributed photovoltaic is proposed.Firstly,the basic principle of voltage violation of photovoltaic at point of interconnection is analyzed.Secondly,in view of voltage violation caused by large load disturbances and volatility of photovoltaic active power output,adaptive control strategies are proposed respectively to improve the control effect by reducing the active power of photovoltaic inverters and increasing the adjustment ability of reactive power.Finally,combined with the analysis of simulation examples,the results show that the proposed strategy can effectively reduce the voltage at point of interconnection,which proves the effectiveness of the proposed strategy.
distributed photovoltaicdistribution networkphotovoltaic inverteradaptive control strategyvoltage violation
NETL
NSTL
万方数据
