Research on Difference Control of Location of New Energy Merging Point of Distribution Network Voltage
After the new energy access,the voltage will produce uncertain fluctuations,affecting the stable operation of the distribution network.To prevent the occurrence of the above phenomenon,a strategy on difference control of location of new energy merging point of distribution network voltage is proposed.The distribution network model with high proportion of new energy access is constructed,and the node voltage values are coordinately calculated according to the location difference of new energy merging point in an innovative way.Taking the minimization of node voltage deviation as the goal,the distribution network voltage control objective function is constructed.Under the conditions of node voltage constraints,capacity constraints,power constraints and tidal current constraints,the coordinated control variables of node voltage are calculated based on the inverters,and the variables are input to the distribution network control unit.The node voltage fluctuation rate is controlled to realize the coordinated control of distribution network voltage.The experimental results show that by applying the proposed strategy to control the distribution network nodal voltages of typical and extreme scenarios,the voltage fluctuation rate index can be effectively controled below 0.010 and 0.015,respectively.The proposed strategy has a better voltage control effect.
New energyDistribution networkVoltage qualityEffectiveness evaluationVoltage regulation strategyObjective functionInverter
NETL
NSTL
万方数据
