计及含蓄热机组快速爬坡能力的风火联合电力系统调度

发布时间：2018-05-10 12:03

  本文选题：机组蓄热 + 风电利用率　； 参考：《热能动力工程》2017年S1期

【摘要】：为提高电网中的风电利用率,一个可能途径是通过利用火电机组的蓄热能力,使之获得较快的爬坡速率去响应具有波动性和间歇性的风电出力。本文针对含风电与火电的电力系统经济调度问题,提出一个包含机组蓄热利用决策的优化模型。含蓄热的火电机组与传统火电机组不同,其爬坡能力是动态变化且具有记忆性的,因此需要针对此类机组建立新的爬坡率约束。文中将上述约束转化为等价的线性形式,并采用混合整数规划方法求解。仿真算例结果表明:含蓄热机组所提供的额外爬坡能力使系统中的风电利用率得到了显著提高。
[Abstract]:In order to improve the utilization rate of wind power in the power network, one possible way is to make use of the heat storage capacity of the thermal power unit to obtain a faster climbing rate to respond to the fluctuating and intermittent wind power output. In this paper, an optimal model for the economic dispatch of power system with wind power and thermal power is proposed, which includes the decision of heat storage and utilization of generating units. Different from the traditional thermal power units, the thermal thermal units have dynamic slope climbing ability and memory, so it is necessary to establish a new slope climbing rate constraint for this kind of units. In this paper, the above constraints are transformed into equivalent linear forms and solved by mixed integer programming method. The simulation results show that the utilization rate of wind power in the system is greatly improved by the extra climbing ability provided by the implicit heat generating unit.
【作者单位】： 海南电力技术研究院;华北电力大学控制与计算机工程学院;
【分类号】：O221.4;TM73
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本文编号：1869234