| 200 | 5 | 40 |
| Downloads | Citas | Reads |
Aiming at the poor stability of central distributed photovoltaic system under low voltage ride through(LVRT),an efficient strategy was proposed.The strategy took the DC bus voltage as the reference value to coordinate the control of smart controller and inverter to achieve power balance.The second-order DC ripple voltage caused by voltage imbalance was suppressed by negative sequence current compensation.The 1 MW central distributed photovoltaic system LVRT experiment shows that the proposed method has good dynamic response and steady-state performance.When the grid voltage drops,the DC voltage surge is small.When the grid voltage restores,the active power restores smoothly and quickly.The research results has important engineering application value.
[1]吴琼,董国伟,谢小军.光伏电站集中式、组串式和集散式逆变设计方案对比[J].电气应用,2017,36(16):72-79.
[2] GB/T19964-2012,光伏发电站接入电力系统技术规定[S].北京:中国标准出版社,2013.
[3]梁城,潘年安,陶磊.一种集散式光伏逆变系统及其限功率控制方法:中国,201610500005.X[P].2016-06-28.
[4]韩贤岁,刘其辉.对称和不对称故障下的并网光伏逆变器低电压穿越研究[J].电测与仪表,2015,52(9):113-118.
[5]刘力,于佳丽.不对称电网电压下光伏并网逆变器控制策略研究[J].太阳能学报,2017,38(10):2 848-2 856.
[6]陈艺峰,张洪浩,朱淇凉,等.基于软开关的光伏单组串MPPT集散电源及其控制[J].控制与信息技术,2018(3):11-16.
[7]袁绍民,孟繁伟,赵海斌,等.基于STM32的MPPT光伏汇流箱设计[J].电子产品世界,2016,23(3):45-47.
Basic Information:
DOI：10.20040/j.cnki.1000-7709.2019.07.045
China Classification Code:TM615
Citation Information:
[1]SHI Chun-hu,YANG Yi-cheng,WEN Chuan-xin ,et al.Low Voltage Penetration Control Strategy for Central Distributed Photovoltaic System[J].Water Resources and Power,2019,37(07):183-186.DOI:10.20040/j.cnki.1000-7709.2019.07.045.
2019-07-19
2019-07-19