AI 中文总结
高斯聚变有限公司开发千兆瓦聚变发电厂，以能产生3吉瓦聚变功率的固定边界仿星器平衡为设计基础。通过0.5D建模确定要求，优化改进W7-X平衡，修改相关代码，经比较和详细建模，最终平衡满足发电厂所有必要要求。
AI 中文摘要
高斯聚变有限公司正在开发的千兆瓦聚变发电厂，其设计基础是一种能够产生3吉瓦聚变功率（1吉瓦电力）的固定边界仿星器平衡。仿星器概念为聚变发电厂提供了一种稳态、无瞬变、低再循环功率的方法，这基于等离子体物理学50年的进展。通过应用0.5D建模确定了固定边界平衡的一组要求。对改进的文德尔施泰因7-X（W7-X）平衡进行了优化，以满足这些要求，包括α功率约束大于85%，新经典有效波纹低于0.01，自举电流低于50千安，以及降低湍流热通量。为了在优化过程中固定1500立方米的等离子体体积，对VMEC代码进行了修改，以将边界系数重新归一化到所需的等离子体体积。还对STELLOPT仿星器优化代码进行了修改，以包括新的自举电流目标、径向电场的新目标，以及将轴上磁场保持在固定值的能力。将中间概念设计等离子体和最终演化的固定边界平衡与原始改进的W-7X平衡进行了比较。通过对稳定性、快离子约束和输运进行更详细的建模，最终演化的平衡显示满足千兆瓦聚变发电厂的所有必要要求。
英文摘要
A fixed boundary stellarator equilibrium capable of producing 3 GW of fusion power (1 GW-electric) is presented as the design basis for the GIGA fusion power plant being developed by Gauss Fusion GmbH. The stellarator concept provides a steady-state, transient free, low recirculating power approach to a fusion power plant, which builds on 50 years of progress in plasma physics. A set of requirements for a fixed boundary equilibrium were determined through application of 0.5 D modeling. Optimization of a modified Wendelstein 7-X (W7-X) equilibrium was performed to achieve these requirements including alpha power confinement greater than $85\%$, neoclassical effective ripple below 0.01, bootstrap current below 50 kA, and reduced turbulent heat fluxes. In order to fix the plasma volume of $1500~m^3$ during optimization, the VMEC code was modified to renormalize the boundary coefficient to the desired plasma volume. The STELLOPT stellarator optimization code was modified as well to include new bootstrap current targets, a new target for the radial electric field, and the capability to hold the magnetic field on axis at a fixed value. An intermediary conceptual design plasma and final evolved fixed boundary equilibria are compared to the original modified W7-X equilibrium. The final evolved equilibrium is shown to achieve all the necessary requirements for the GIGA fusion power plant through more detailed modeling of stability, fast ion confinement, and transport.
