摘要 针对大规模光伏并网输出稳定性和功率增益不好的问题,提出基于暂态稳定功率补偿控制的大规模光伏并网功率多源协调控制方法。采用多参量融合配置的方法进行大规模光伏并网功率多源协调参数采样和信息融合处理,根据光伏并网直流侧输入参数因素进行的静态极限有功功率调节,计算大规模光伏并网功率的稳态增益,采用静态极限电流调节的方法,构建大规模光伏并网功率调节的反馈补偿模型。在有功功率控制环路中通过暂态性稳定功率调节的方法,实现大规模光伏并网功率多源协调控制优化设计。测试结果表明,采用该方法进行大规模光伏并网功率多源协调控制的输出稳定性较高,有功功率平衡性较好,提高了多源协调控制的鲁棒性和自适应性。 Aiming at the problem of poor output stability and power gain of large-scale photovoltaic grid-connected,a multi-source coordinated control method of large-scale photovoltaic grid-connected power based on transient stable power compensation control is proposed.Multi-parameter fusion configuration method is used to sample and fuse the multi-source coordinated parameters of large-scale photovoltaic grid-connected power.Static limit active power is adjusted according to the input parameters of DC side of photovoltaic grid-connected,and the steady-state gain of large-scale photovoltaic grid-connected power is calculated.The feedback compensation model of large-scale photovoltaic grid-connected power adjustment is constructed by using static limit current adjustment method,and the optimization design of multi-source coordinated control of large-scale photovoltaic grid-connected power is realized by transient stable power adjustment method in active power control loop.The test results show that the output stability and active power balance of large-scale photovoltaic grid-connected power multi-source coordinated control are high,and the robustness and adaptability of multi-source coordinated control are improved.
出处 《自动化与仪器仪表》 2021年第4期64-66,70,共4页 Automation & Instrumentation
基金 云南电网电力调度控制中心项目:水电群与风电集群的动态协调控制技术研究与应用(No.524608160008)。
关键词 大规模光伏并网 功率 多源协调 控制 参数调节 large-scale photovoltaic grid connection power multi-source coordination control parameter adjustment
分类号 TM46 [电气工程—电器]
