钠电池在新能源发电中的作用是什么？

What is the role of Sodium-ion Battery in new energy power generation?    

钠离子电池是新能源发电体系的核心支撑部件，在新能源发电中承担着储能消纳、调峰填谷、稳定电网、提升新能源利用率的核心作用。风电、光伏等新能源发电具有间歇性、波动性、随机性的特点，发电功率与电网用电负荷不匹配，白天光伏大发、用电负荷低，晚间用电高峰、光伏无发电，风电则受风力影响波动极大，导致新能源发电无法直接稳定并网，大量电能被弃用，新能源利用率低。钠电池储能系统可完美解决这一问题：在新能源发电高峰时段，吸纳多余的电能，将电能转化为化学能储存起来；在电网用电高峰时段，将储存的电能释放出来，输送到电网，实现削峰填谷，平衡电网负荷；同时可快速响应电网功率波动，参与电网调频、调压，稳定电网电压和频率，保障电网安全稳定运行；大幅提升新能源发电的并网利用率，减少弃风弃光，推动新能源发电的大规模发展，是实现双碳目标的核心技术支撑。

Sodium-ion Battery is the core supporting component of the new energy power generation system, and plays a core role in energy storage and consumption, peak shaving and valley filling, grid stabilization, and improving the utilization rate of new energy in new energy power generation. New energy power generation such as wind power and photovoltaic has the characteristics of intermittency, volatility and randomness, and the power generation power does not match the power load of the power grid. Photovoltaic generates a lot of power during the day when the power load is low, and no power is generated during the evening peak hours when the power load is high. Wind power fluctuates greatly due to the influence of wind force, which leads to the inability of new energy power generation to be directly and stably connected to the grid, a large amount of electric energy is abandoned, and the utilization rate of new energy is low. The sodium battery energy storage system can perfectly solve this problem: during the peak period of new energy power generation, it absorbs excess electric energy, converts electrical energy into chemical energy for storage; during the peak period of power grid load, it releases the stored electric energy and transmits it to the power grid, realizing peak shaving and valley filling, and balancing the power grid load; at the same time, it can quickly respond to grid power fluctuations, participate in grid frequency modulation and voltage regulation, stabilize grid voltage and frequency, and ensure the safe and stable operation of the power grid; it greatly improves the grid-connected utilization rate of new energy power generation, reduces wind and light abandonment, promotes the large-scale development of new energy power generation, and is the core technical support for achieving the dual carbon goals.