Hybrid storage system based compact power converter modules for standalone system

目前，加拿大北部的大多数发电设施只使用柴油发电机(DG)。 以满足他们对电力的需求。通常，DGS使用石油作为主要来源，这是相对 效率低下，运输非常昂贵，并造成大量温室气体排放 (GHG)。为了克服这些缺点，确保高质量的不间断供电 改进，以及降低成本，使用风力涡轮机的混合独立发电系统， 提倡太阳能光伏阵列和水力发电。通常，大多数可再生能源都会受到 间歇性的，间歇性的为了解决这一问题并确保对本地负载的不间断供电， 需要电池储能系统(BESS)。事实上，铅酸电池技术之所以被广泛使用，是因为 它的低成本。然而，它具有能量密度低、数量有限等局限性。 充电/放电循环。此外，这些电池可能会因充电控制不当而损坏 收费过高。此外，铅酸电池的额定温度通常为77F(25C°)。低环境和高环境 温度也会影响电池的性能、使用寿命以及推荐的充电电压。要解决这些问题 与铅酸电池的寿命、能量密度和系统的盈利能力有关的问题，混合动力 建议使用存储系统(铅酸蓄电池和超级电容器)。此外，先进的控制算法 需要控制不同电源之间的功率。控制器的设计也需要满足以下要求 利用发电系统实现高效率并延长电池的使用寿命。

In present time, most of the power generation utilities in the north of Canada use only diesel generators (DGs) to satisfy their needs for electrical power. Usually, DGs uses oil as a primary source, which is relatively inefficient, very expensive to transport, and responsible for the emission of large amounts of greenhouse gases (GHG). To overcome these drawbacks and ensure uninterruptible power supply with high power quality improvement, as well as, with reduced cost, hybrid standalone power generating system using wind turbine, solar PV array and Hydro is advocated. Usually, most of renewable energy sources suffers with the intermittency in nature. To solve this problem and ensure uninterruptable power supply to the local load, battery energy storage system (BESS) is required. Indeed, lead-acid battery technology is widely used because of its low cost. However, it possesses limitations such as, low energy density and a limited number of charge/discharge cycles. Furthermore, these batteries may damage by a poor charging control results in overcharging. In addition, lead acid battery is typically rated at 77F (25C°). The low and high ambient temperatures also affect the performance, lifespan, as well as recommended charging voltages. To solve these problems related to the lifespan of lead-acid batteries, energy density, and profitability of the system, hybrid storage system (lead-acid batteries and super-capacitors) is advised. Furthermore, advanced control algorithms are required to control the power among various sources. The design of the controller is also required to achieve high efficiency and to extend the lifespan of batteries with the generating system.