Role of energy storage in ensuring transmission system adequacy and security
Role of energy storage in ensuring transmission system adequacy and security
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DOI：
10.1016/j.energy.2018.05.098
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发表时间：
2018-08
期刊：
影响因子：
9
通讯作者：
Zora Luburić;H. Pandžić;T. Plavšić;Ljupko Teklic;V. Valentić
中科院分区：
文献类型：
--
作者：
Zora Luburić;H. Pandžić;T. Plavšić;Ljupko Teklic;V. Valentić
输电系统运营商的主要目的是确保其电力系统的稳定，可靠和高效运行。可再生能源的大规模集成给输电系统的主动控制带来了额外的挑战。传统上，发电充足性是通过对发电机组的投资来实现的，而输电充足性是通过对输电线路的投资来实现的。然而，储能可以被视为发电资产，因为它降低了峰值负荷，并在将电力注入网络时充当发电机，以及传输资产，因为它可以及时传输电力，从而减少可再生能源的拥堵和削减。本文研究了储能在提高电力系统充足性和安全性方面的作用。提出了一种方法来定义的充电/放电计划的能量存储后的意外事件，以保持系统的操作限制内，并提供系统操作员有足够的时间来重新调度系统和缓解过载的线路。该方法被应用到克罗地亚电力系统的实际部分，使用的情况下，描述代表性的网络状态。在传输操作和规划软件中使用实际操作数据进行模拟。详细分析了结果，并对储能在提供输电系统充足性和安全性方面的作用进行了评估。
The main purpose of a Transmission System Operator is to ensure stabile, reliable and efficient operation of its power system. Large-scale integration of renewable energy sources has introduced additional challenges to active control of transmission power systems. Traditionally, generation adequacy has been achieved through investments in generating units and transmission adequacy through investments in transmission lines. However, energy storage can be regarded as both the generation asset, as it reduces peak load and acts as a generator when injecting electricity into the network, and transmission asset, as it can move electricity in time thus reducing congestion and curtailment of renewable energy sources. This paper examines the role of energy storage in increasing power system adequacy and security. A method is proposed to define the charging/discharging schedule of energy storage after a contingency in order to preserve the system within the operating limits and to provide the system operator enough time to redispatch the system and relieve the overloaded lines. The method is applied to an actual part of the Croatian power system using scenarios that describe representative network states. The simulations are performed in a transmission operations and planning software using actual operating data. The results are analysed in details and conclusions on the role of the energy storage in providing transmission system adequacy and security is assessed.