Micro/small wind turbine power control for electrolysis applications

被引：15

作者：

Dixon, Christopher ^{[1
]}

Reynolds, Steve ^{[1
]}

Rodley, David ^{[1
]}

机构：

[1] Univ Dundee, Div Phys, Dundee DD1 4HN, Scotland

来源：

RENEWABLE ENERGY | 2016年 / 87卷

基金：

英国工程与自然科学研究理事会;

关键词：

Renewable hydrogen production; Micro/small wind turbine; Electrolysis; Maximum power point tracking; Hill-climb search; HYDROGEN FUEL-CELL; POINT TRACKING; RENEWABLE ENERGY; SOLAR PV; HIGH-EFFICIENCY; FUTURE; TECHNOLOGIES; ALGORITHMS; CONVERTER; PROSPECTS;

D O I：

10.1016/j.renene.2015.09.055

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This paper compares the efficiency of three power converter and maximum power point tracking (MPPT) systems for connecting a micro/small wind turbine to an electrolyser stack: a conventional DC DC voltage converter with hill-climb search (HCS); a novel variable electrolyser cell load controller where the number of series cells varies to allow MPPT; a novel hybrid DC DC voltage converter integrated with direct-connect circuitry, variable cell control and lookup-based MPPT. The variable cell and hybrid converters demonstrated superior performance, averaging efficiencies 2-4% higher than the conventional converter, reaching near ideal at a wind speed of 7.7 ms(-1) due to direct connection. MPPT function measured electrolyser current as a power reference. HCS performed MPPT at approx. 98% of ideal but requiring very advanced function including variable step size and intelligent perturbation to achieve this during dynamic conditions. The variable cell and hybrid converters produced superior MPPT (based on lookup data) to HCS. This demonstrates alternative novel power control and MPPT approaches for low-cost and efficient hydrogen production from micro/small wind-electrolysis systems. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：182 / 192

页数：11

共 55 条

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