提高风电并网系统调度计划可信度的HESS经济效益计算

Economic Benefit Calculation of HESS for Improving Credibility of Dispatching Plan of Wind Power Grid -Connection

摘要:

针对风电-氢储能系统的经济性，文中提出利用氢储能系统（HESS）提高风电并网调度计划的可信度，分析了HESS提高风电并网调度计划的可信度的机理；然后，构建了计及风电预测出力、实际出力及调度出力的氢储能系统提高风电并网调度计划可信度的充放电价格策略体系；最后，建立了HESS收入及成本数学模型。在此基础上，构建了提高风电并网调度计划可信度的HESS全寿命周期的经济效益计算数学模型。以某风电场为例对所提模型进行了验证，并分析了经济效益对调度误差和电价的敏感性，结果表明所建立的HESS经济效益计算模型的正确性。研究结果为风电-氢储能系统前期投建的经济性评价提供了参考。

Abstract:

Aiming at the economic of wind power and hydrogen energy storage system (HESS), HESS is proposed to improve the credibility of dispatching plan of wind power grid -connection. The mechanisms for improving the credibility of dispatching plan of wind power grid -connection is analyzed, and the charging and discharging pricing strategy system is proposed considering output prediction, actual output and dispatching output of wind power of HESS to improve the credibility of dispatching plan of wind power grid -connection. A mathematical model for income and cost of HESS is established, and on this basis, a mathematical model for economic benefit calculation of HESS life -cycle is constructed to improve the credibility of dispatching plan of wind power grid -connection. Taking a wind farm for example, the proposed model is verified, and the sensitivity of economic benefit to dispatching error and electricity price is analyzed. The results show that the proposed economic benefit calculation model for HESS is right and effective, which can provide a reference for the economic evaluation of early construction of HSEE.