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Optimization model for EL-TO ZAGREB cogeneration plant

机译：EL-TO ZAGREB热电联产厂的优化模型

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The mathematical model for the cost optimization of the EL-TO Zagreb thermal power plant has been developed. The plant supplies hot water for district heating, process steam for industry and electric power. The rather detailed mathematical model of the plant includes models of all main components like gas turbine facilities with heat recovery boilers, high pressure steam generators, back-pressure turbines, peak load boilers and other equipment like heat exchangers, deaerators and pressure reduction valves. All boilers can use alternatively natural gas or heavy oil as fuel while gas turbines are supplied with natural gas only. The generalized reduced gradient method has been used for solving the strongly nonlinear optimization problem. The goal of the mathematical model was to minimize the production cost by satisfying the district heat and industrial steam consumption. Results of the sensitivity analyses of influence of extraction steam pressure levels on cost function have been presented as well as comparison of optimization results with operational data.
机译：开发了EL-TO ZAGREB热电厂成本优化的数学模型。该工厂为地区供暖提供热水，工艺蒸汽为工业和电力。该工厂的相当详细的数学模型包括燃气轮机设施的所有主要组件的模型，包括热回收锅炉，高压蒸汽发生器，背压涡轮机，峰值负载锅炉等热交换器，脱气器和减压阀等设备。所有锅炉可以使用可选地使用天然气或重油作为燃料，而燃气轮机仅提供天然气。广义减少的梯度方法已被用于解决强不利的优化问题。数学模型的目标是通过满足地区的热量和工业蒸汽消耗来最小化生产成本。已经提出了提取蒸汽压力水平对成本函数影响的敏感性分析以及与操作数据的优化结果的比较。

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