An economic analysis method for shore power operation

Abstract

The invention discloses an economic analysis method for shore power operation, which belongs to the economic analysis method. At present, the economic analysis of shore power operation cannot obtain a reasonable price for shore power use, and its credibility is low. The invention includes steps: 1. According to the composition of the high-voltage shore power system, an economic model is established by quantifying parameter indicators, and the cost of the port and ship users, the benefits after the shore power transformation and the time limit for cost recovery are determined. 2. The establishment of the model, constructing the cost recovery period model of the port, the cost comparison model before and after the ship shore power transformation, and the cost recovery period model. 3. For the established mathematical model, after selecting the appropriate model data, find out the reasonable shore power usage according to the relationship between the state subsidy and the port and the ship, as well as the impact of the shore power service fee and berth utilization rate on the payback period Price, so that the recovery period of the port and the cost-effective recovery period of the ship are at the same time the shortest, which is conducive to the promotion of the use of shore power.

Description

technical field [0001] The present invention relates to a method for analyzing operation economy, in particular to a method for analyzing shore power operation economy. Background technique [0002] In recent years, with the continuous and rapid development of the national economy, the pace of port construction has become faster and faster, and the number and density of ships berthing at the wharf have increased significantly, which consumes a lot of energy and brings huge pollution. In contrast, replacing the traditional self-provided fuel engine generator power supply with port grid power supply has significant advantages. It can not only save the cost of power supply for ships in port, directly save the maintenance cost of the ship's own power generation facilities, but also improve the quality of the crew's living and working environment. It can also improve the energy efficiency of the port and effectively reduce the environmental pollution of the port. However, at the...

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Problems solved by technology

However, at the same time, the shore power project also has low system applicability and poor reliability. The berth scheduling mechanism is not perfect and the utilization rate of shore power is low. The enthusiasm for the use of shore power is not high

[0003] On the one hand, the economic analysis of shore power operation is complicated, with a large amount of data, complicated calculation, long calculation time, low efficiency, and the obtained results are inaccurate, not intuitive, and have low credibility, which cannot fully demonstrate the feasibility of shore power operation Waiting question

On the other hand, there is still the problem that the power supply unit is difficult to choose a reasonable price for the use of shore power, and the recovery period of the port and the cost-effective recovery period of the ship cannot be achieved at the same time, which is not conducive to the promotion of the use of shore power.

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