Preface

Energy is the material basis for the survival and development of human society, and its importance is self-evident. The increasingly prominent problems of energy shortage and environmental pollution greatly enhance the status of new energy and renewable energy in the field of energy. Solar energy, wind energy, water energy, biomass energy, geothermal energy, marine energy and other energy technologies have also developed rapidly in recent years. In order to overcome the difference between energy supply and energy demand in time and space, it is necessary to use certain methods, through certain media or devices, to directly or indirectly convert one form of energy into another form of energy for storage, and release it when energy is needed. Energy storage technology is a variety of methods to study energy storage.
         The traditional power system, which is a real-time balance system formed by a set of generation side variables and a group of power consumption side variables, has the characteristics of instant generation and use. There are generally large peak valley changes in the load on the power side, which brings great pressure to the power generation side and causes many disadvantages of the power system. By using energy storage technology, the surplus power can be stored and sent out at an appropriate time, so as to realize the function of energy storage “regulation, optimization, efficiency increase and protection” in the power system. This can make the power distribution flexible, optimize the system resource allocation, improve the operation efficiency and ensure the stable operation of the system. The development of energy storage technology is to ensure the continuous process of energy utilization. It is very important in human daily life and industrial production, such as electric power industry, new energy vehicles, solar thermal utilization and other fields, and it is of great significance to promote the sustainable development of energy.

前 言

能源作为人类社会生存和发展的物质基础，其重要性不言而喻。能源短缺和环境污染等问题的日益突出，极大地提升了新能源和可再生能源在能源领域的地位。太阳能、风能、水能、生物质能、地热能、海洋能等各种能源技术近年来也得到快速发展。为克服能量供应和能量需求在时间和空间上的差别，就需要采用一定的方法，通过一定的介质或装置，将某种形式的能量直接或间接转换成另一种形式的能量储存起来，在需要用能的时候释放出来。研究能量储存的各种方法，即储能技术。
       传统模式下的电力系统，即一组发电侧变量和一组用电侧变量所形成的实时平衡的系统，具有即发即用的特点。用电侧负荷普遍存在较大的峰谷变化，给发电侧带来了较大压力，造成了电力系统的诸多弊端。利用储能技术可以把多余的电力储存起来，在适当的时刻再发出去，从而在电力系统中实现储能“调节、优化、增效、保护”的功能，使电能灵活分配，优化系统资源配置，提高运行效率以及保障系统稳定运行等。储能技术的发展，是为了保证能量的利用过程能够连续进行，在人类的日常生活和工业生产等各方面，如电力工业、新能源汽车、太阳能热利用等多个领域，都非常重要，并对促进能源的可持续发展具有重要意义。