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首页> 外文期刊>The Journal of Engineering >Effect of wind units on market clearing price, transmission congestion and network reliability in transmission expansion planning
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Effect of wind units on market clearing price, transmission congestion and network reliability in transmission expansion planning

机译：风电对输电扩容规划中市场清算价格，输电拥塞和网络可靠性的影响

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摘要

In this study, a transmission expansion planning problem is studied considering the effects of wind units on transmission congestion and power system reliability in a uniform electricity market. Market clearing price (MCP) is determined based on the maximisation of social welfare. Also, the congestion cost of a transmission system is defined as the difference between the cost of power supply before market clearing disregarding the transmission system (dispatching cost) and the operation cost of generating wind units of power suppliers considering transmission lines limit (re-dispatching cost). Dispatching cost is calculated using economic load dispatch and the re-dispatching cost is determined using optimal power flow. Moreover, the effect of wind units on transmission network reliability is studied through the relationship between wind units and lines loading and coherence between lines loading and lines failure rate. In addition, the effects of wind generation on composite transmission and generation reliability is formulated via the relationship between wind units and MCP and considering this price in loss of load and load shedding cost of customers. The proposed model is applied to the IEEE reliability test system and the results are discussed.
机译：在本研究中，研究了在统一电力市场中考虑风力机组对输电拥堵和电力系统可靠性的影响的输电扩容计划问题。市场清算价格（MCP）是根据社会福利的最大化确定的。另外，将输电系统的拥挤成本定义为市场清算前不考虑输电系统的电力供应成本（调度成本）与考虑了输电线路限制（重新调度）的电力供应商风力发电机组的运行成本之差。成本）。使用经济负荷分配计算分配成本，并使用最佳潮流确定重新分配成本。此外，通过风单元与线负荷之间的关系以及线负荷与线故障率之间的一致性，研究了风单元对输电网络可靠性的影响。此外，通过风力发电机组与MCP之间的关系，并考虑到此价格中的损失成本和客户的甩负荷成本，可以得出风力发电对复合传输和发电可靠性的影响。该模型被应用于IEEE可靠性测试系统并讨论了结果。

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