Economic development zone comprehensive energy system planning method based on minimum annual comprehensive cost

Abstract

The invention provides an economic development zone comprehensive energy system planning method based on the minimum annual comprehensive cost. The method is characterized by considering the economicdevelopment zone energy consumption demand characteristics of typical days in different seasons, and predicting the load change trend; taking the minimum annual comprehensive cost including the investment equivalent annual cost, annual operation and maintenance cost and environmental protection cost as an economic development zone energy planning target; calculating the investment equivalent annual cost, the annual operation maintenance cost and the environmental protection cost of each scheme through iteration; and obtaining an optimal planning scheme of the economic development zone energy system. The scheme comprises an installed capacity configuration strategy of each device in the system, an optimal topological structure of the economic development zone comprehensive energy system anda typical daily economic development zone energy system operation scheduling strategy, so as to solve the problems existing in the current economic development zone power, cold, hot and steam energyconstruction planning according to the maximum load.

Description

technical field [0001] The invention belongs to the technical field of comprehensive energy system planning, and in particular relates to a comprehensive energy system planning method in economic development zones based on the minimum annual comprehensive cost. Background technique [0002] The Economic and Technological Development Zone (hereinafter referred to as the Economic and Technological Development Zone) is an energy-intensive area with a large demand for electricity, cooling, heating and steam energy. At present, the construction, operation and management of electricity, cooling, heating, and steam energy systems in the Economic Development Zone are in charge of different departments, and the construction plans are also formulated by different departments. As a result, the energy system in the Economic Development Zone has low energy efficiency, Problems such as large construction investment and poor investment returns. In recent years, the State Grid Corporation ...

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Problems solved by technology

[0003] In view of the current construction of the energy system in the Economic Development Zone, electricity, cold, heat, and steam energy are planned according to the maximum load in the Economic Development Zone, resulting in problems such as large investment in energy system construction, low energy comprehensive utilization rate, and poor investment returns. The present invention considers factors such as the energy demand characteristics of enterprises in the Economic Development Zone in different seasons, the coupling and substitution of various energy sources, and the operating sequence of equipment, and proposes a comprehensive energy system planning method based on the smallest annual comprehensive cost in the Economic Development Zone to improve energy efficiency. System construction investment, energy utilization rate, construction benefit

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