This paper introduces a new combination of solar fields to reduce LCOE and increase solar share. One Solar Field (PTC or LFR) with molten salt as heat transfer fluid is used to store energy during the day, and two independent LFRs are used for direct steam generation for high-pressure turbines and low-pressure turbines. Due to the low price of natural gas, using solar field is not economical, and using thermal energy storage is affordable only for a higher price of natural gas. The PTC with a lower energy storage than LFR has a higher solar share, but using LFR is more economical. In this paper, the effects of several parameters on the LCOE are investigated, and the key factors are introduced. According to the results, three independent LFRs create the best combination to meet the required energy. The LCOE of a photovoltaic power-plant is less than the LCOE of a solar thermal one, but the photovoltaic power plant cannot supply the energy needed at night. Therefore, in the end, to further increase system performance and reduce the LCOE, the solar thermal power-plant is combined with a photovoltaic system and the effects of using different sizes of photovoltaic power-plant on the hybrid system are investigated.

本文介绍了一种新的太阳能领域组合，以减少LCOE和增加太阳能份额。一个太阳能场（PTC或LFR）以熔融盐作为传热流体，白天用于存储能量，两个独立的LFR用于高压涡轮和低压涡轮的直接蒸汽产生。由于天然气的价格低廉，因此使用太阳能场是不经济的，并且仅当天然气价格较高时，才可以使用热能存储。能量存储比LFR低的PTC具有更高的太阳能份额，但是使用LFR更经济。本文研究了几个参数对LCOE的影响，并介绍了关键因素。根据结果​​，三个独立的LFR可以产生最佳组合，以满足所需的能量。光伏电站的LCOE小于太阳能热电站的LCOE，但是光伏电站无法提供夜间所需的能量。因此，最后，为了进一步提高系统性能并降低LCOE，将太阳能热电厂与光伏系统结合，并研究了使用不同尺寸的光伏电厂对混合系统的影响。