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首页> 外文会议>Workshop on Predictive Control of Electrical Drives and Power Electronics >Grid interfacing of distributed energy sources by three-level BtB NPC converter under distorted grid voltage
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Grid interfacing of distributed energy sources by three-level BtB NPC converter under distorted grid voltage

机译：三级BTB NPC转换器在扭曲电网电压下的分布式能源网格接口

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摘要

This paper presents complete control algorithm for grid-connected Pulse Width Modulated (PWM) 3-level BtB (back to back) converter intended for industrial drives and renewable energy applications. The objective of control is to limit current harmonics distortion and provide ride through capability during voltage dips. Moreover, Maximum Power Point Tracking (MPPT) and Active Power Feedforward (PF) has been implemented end tested for optimizing energy flow control. Grid Side Converter (GSC) is controlled by Voltage Oriented Control (VOC) supported by synchronization loop with positive sequence extraction, resonant current controllers for higher harmonics compensation, grid voltage feedforward loop for dips compensation and DC voltage filter. At Machine Side Converter (MSC) Direct Torque Control Space Vector Modulated (DTC-SVM) has been used. Algorithm is tested in simulations and experiment from 3kVA up to 15kVA platform using three-level BtB NPC converter with LCL filter. Both controls of GSC and MSC are interacting by Power Feedforward for energy flow optimization between grid and active load.
机译：本文介绍了用于工业驱动器和可再生能源应用的网格连接脉冲宽度调制（PWM）3级BTB（返回回）转换器的完整控制算法。控制的目的是限制电流谐波失真，并在电压下降期间提供乘坐能力。此外，已经实现了最大功率点跟踪（MPPT）和有效电力前馈（PF）以测试用于优化能量流量控制的结尾。电网侧转换器（GSC）由带有正序列提取的同步环路支持的电压导向控制（VOC）控制，谐振电流控制器，用于更高的谐波补偿，电网电压前馈回路，用于蘸帘补偿和直流电压滤波器。在机器侧转换器（MSC）时，使用直接扭矩控制空间矢量调制（DTC-SVM）。使用带LCL滤波器的三级BTB NPC转换器，在模拟和高达15kVA平台的模拟和实验中进行了测试。 GSC和MSC的两个控制都是通过电力前馈交流的，用于电网和有源负载之间的能量流优化。

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