Non-grid-connected wind power water-electrolytic hydrogen production system is an effective solution to wind power curtailment. However, the stability of the Source power supply is affected by the intermittent and volatility of the wind energy, which will lead to low efficiency of hydrogen production on the Load. In this paper, a novel non-grid-connected Source-Load collaboration wind-hydrogen system is proposed to adapt to the variation of wind energy, which directly connects the Source wind turbines and the Load hydrogen production devices through a DC bus with a super capacitor group and auxiliary AC grid power supply. For the system, quasi-Z-source rectifiers with a wide DC voltage adjustment range are developed for the Source and a modular proton exchange membrane (PEM) water electrolytic hydrogen production array is designed for adjusting the Load capacity. The basic architecture and the modelling method of the Source, the Load and DC bus are analyzed. A control strategy for the system is put forward to regulate the size of the PEM array with three different operating modes and DC voltage collaboratively, by which the power flow management between the Source and the Load can be realized according to the wind power variation. Finally, two cases are carried out in the presence of diffident randomly varying wind power. The results show that the proposed non-grid-connected Source-Load collaboration of the wind-hydrogen system can maximize wind energy utilization of the Source and increase the efficiency of hydrogen production of the Load in the case of wind power fluctuations.

非并网风电水电解制氢系统是风电限电的有效解决方案。然而，Source电源的稳定性受到风能的间歇性和波动性的影响，这会导致负载上的制氢效率低下。为适应风能的变化，本文提出了一种新型的非并网源-负荷协同风氢系统，该系统通过直流母线将源风力发电机组和负荷制氢装置直接连接起来，并具有超电容器组和辅助交流电网电源。对于系统，为源开发了具有宽直流电压调节范围的准Z源整流器，并设计了模块化质子交换膜（PEM）水电解制氢阵列以调节负载能力。分析了电源、负载和直流母线的基本架构和建模方法。提出了一种系统控制策略，通过三种不同工作模式和直流电压协同调节PEM阵列的大小，根据风功率变化实现电源和负载之间的潮流管理。最后，在存在不同随机变化的风功率的情况下进行了两种情况。