• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>2015 IEEE IAS Joint Industrial and Commercial Power Systems/ Petroleum and Chemical Industry Conference >A decoupled adaptive noise detection based control approach for grid supportive SPV system
【24h】

A decoupled adaptive noise detection based control approach for grid supportive SPV system

机译：网格支持SPV系统的基于解耦自适应噪声检测的控制方法

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper deals with a three phase multifunctional grid connected SECS (Solar Energy Conversion system). A two stage topology is used in this work, in which the first stage is a boost converter, which serves the purpose of MPPT (Maximum Power Point Tracking) and the second stage is a 4-leg VSC (Voltage Source Converter) which serves the purpose of feeding extracted energy along with power quality improvement in the distribution system. The SECS not only feeds solar PV (Photo-Voltaic) energy into the grid but also serves purpose of grid currents balancing, reactive power compensation, harmonics elimination and neutral current mitigation. A feed-forward term for the solar contribution is used to improve the dynamic response for climatic changes. The PV array voltage is continuously adjusted with the help of boost converter to achieve MPPT whereas the DC link voltage of VSC is kept constant with the help of a PI (Proportional-Integral) controller. Decoupled adaptive noise detection (DAND) based control approach is proposed for control of four-leg VSC. The DAND is a simple approach using two multipliers, one integrator and one summer per phase for detection of useful component of load current. The proposed control algorithm gives features such as simple structure, fast convergence, frequency adaptive detection and good steady state performance. A wide variety of experimental results are shown to prove the feasibility of the concept. The THDs (Total Harmonic Distortion) of the grid currents are found well under IEEE-519 standard (below 5 %) even under nonlinear and unbalanced loads at CPI (Common Point of Interconnection).
机译：本文研究的是三相多功能并网SECS（太阳能转换系统）。在此工作中使用了两级拓扑，其中第一级是升压转换器，用于MPPT（最大功率点跟踪），第二级是四脚VSC（电压源转换器），用于输送提取的能量以及改善配电系统的电能质量的目的。 SECS不仅将太阳能PV（光伏）能量馈入电网，而且还用于电网电流平衡，无功功率补偿，谐波消除和中性电流缓解。太阳贡献的前馈项用于改善气候变化的动态响应。借助于升压转换器，可以连续调节PV阵列电压以实现MPPT，而借助PI（比例积分）控制器，可以使VSC的直流母线电压保持恒定。提出了一种基于解耦自适应噪声检测（DAND）的控制方法，用于四腿VSC的控制。 DAND是一种简单的方法，使用两个乘法器，一个积分器和每个相一个求和器来检测负载电流的有用分量。提出的控制算法具有结构简单，收敛速度快，频率自适应检测，稳态性能好等特点。大量的实验结果证明了该概念的可行性。即使在CPI（互连公共点）处的非线性和不平衡负载下，也可以在IEEE-519标准（低于5％）下很好地发现电网电流的THD（总谐波失真）。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号