计及电压灵敏度的配电网源储混杂协同功率补偿算法OA

With the continuous integration of high proportion distributed photovoltaics,the bus voltage of the distribution network is facing a severe risk of exceeding the limit.Distributed controllable resources have good support capabilities in mitigating voltage violations.Existing methods often use global optimization to obtain the best coordination between various resources,but have not yet formed a refined coordination compensation mechanism.Therefore,this paper proposes a source-storage hybrid collaborative power compensation control algorithm based on voltage sensitivity.Firstly,when there is an issue of overvoltage/undervoltage in multi-point busbars,a compensation mechanism is designed by selecting key busbars and prioritizing reactive power over active power,that is,implementing photovoltaic inverter voltage reactive control first,and then executing energy storage voltage active control if necessary.Secondly,regarding the key bus voltage regulation,if the sensitivity of the bus voltage where the source/storage located is different,sequential coordinated power compensation will be strictly implemented in descending order of sensitivity.If the sensitivity of the source/storage bus voltage is the same,proportional coordinated power compensation will be implemented based on the remaining controllable power capacity.Finally,a case study was conducted in a multi feeder network scenario to validate the effectiveness of this algorithm.