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Dispatch Analysis of Variable Renewable Energy Penetration in Sri Lanka with HVDC Grid Interconnection with India

机译：高压直流输电与印度互联的斯里兰卡可变可再生能源渗透的调度分析

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摘要

At present there is an increased focus on using renewable energy for power generation. In this paper a dispatch analysis is carried out to identify the effect of increasing variable renewable energy (VRE) penetration in to the Sri Lankan power system with the proposed HVDC grid interconnection with India. Future power system in 2025 was obtained based on least cost principles using WASP software considering HVDC capacity of 500 MW. The same power system was modeled in the long term dispatch simulation software, Stochastic Dual Dynamic Programing (SDDP). High wind and wet periods were considered due to higher renewable resource availability. Output of SDDP for each season was input to short term dispatch simulation software NCP to simulate the daily dispatch along with other operational constraints and seasonal renewable energy profiles. When the system cannot meet the specified constraints the renewable energy curtailments would occur. This process was carried out to obtain the RE penetration level with 500MW HVDC for three different scenarios. Scenarios considered for simulation are aggressive solar, aggressive wind and mix development of solar and wind. It was observed that with the proposed HVDC interconnection with India, the renewable energy level could be increased in the Sri Lankan power system.
机译：目前，人们越来越关注使用可再生能源发电。在本文中，进行了调度分析，以确定通过与印度建立的HVDC电网互连，增加可变可再生能源（VRE）渗透到斯里兰卡电力系统中的影响。考虑到HVDC容量为500 MW，使用WASP软件基于最低成本原则获得了2025年的未来电力系统。在长期调度仿真软件随机双动态编程（SDDP）中对同一电源系统进行了建模。由于可再生资源的利用率较高，因此考虑到了高风和潮湿时期。每个季节的SDDP输出被输入到短期调度模拟软件NCP中，以模拟日常调度以及其他操作限制和季节性可再生能源状况。当系统不能满足规定的约束条件时，将发生可再生能源削减。进行此过程是为了获得三种不同情况下500MW HVDC的RE渗透水平。考虑进行模拟的场景包括激进的太阳，激进的风以及太阳和风的混合发展。据观察，通过与印度的高压直流输电的拟议互连，斯里兰卡电力系统中的可再生能源水平可以提高。

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