Dear judges and teachers,

Good morning!

I am xxX, a student in Class 2, Grade xX, Mathematics Department of Normal University. The topic of my graduation thesis is "Using Reduction and Analogy to Solve Problems". This paper was completed under the careful guidance of Chen Jianzhou. Here, I am very grateful for his long-term help and express my deep respect to the teachers who have educated and trained me for four years. At the same time, I would like to thank those teachers who took time out of their busy schedules to participate in my thesis review.

Below I will make a brief statement on the basic content of my dissertation:

I want to introduce the writing of this paper from the following four aspects: first, the research status and background of the topic, second, the purpose and significance of this study, third, the main content of the paper, and finally talk about the shortcomings of this paper.

First of all, the topic and the present situation of Beijing.

China's thermal power enterprises have also carried out the reform of separation of government from enterprise, corporate reorganization, commercial operation and legal management. In the final analysis, these reforms are to enable thermal power enterprises to enter the market smoothly and participate in the competition, which is both a challenge and an opportunity for development: the separation of power plants and networks, competitive bidding and other reforms provide conditions for thermal power enterprises to expand the power market; The division of power supply business areas and the cancellation or adjustment of the national electricity restriction policy provide living space and policy support for thermal power enterprises; The improvement of environmental awareness of the whole society, the optimization of energy structure and the transformation of urban and rural power grids have created good opportunities for thermal power enterprises to expand the power market. Thermal power enterprises are developing rapidly under this opportunity. Although China's power generation enterprises have made great achievements at present, there are still some problems, such as hidden dangers of power grid security, irregular power trading behavior, and difficult to solve conflicts of interests among all parties. At the same time, the current business environment of thermal power generation enterprises is facing the pressure of slow growth of power demand, prominent capital contradiction, continuous price increase of coal, and inadequate adjustment of electricity price. With the concept of building a resource-saving and environment-friendly society in China, various social charges such as water resources fees and environmental protection fees are increasing year by year, and the survival and development of power generation enterprises are still facing severe tests.

Technical economics is a new comprehensive subject in modern management science. Its main task is to analyze and evaluate specific engineering projects and technical schemes from an economic perspective, so as to provide scientific basis for economic benefits for decision makers and help them make correct choices. Since the reform and opening up, China's technical and economic disciplines have made great progress. As an important part of technical economics, technical and economic analysis method and its application play an increasingly important role in the whole technical and economic system.

Secondly, the research purpose and significance of this topic.

At present, the business environment of thermal power generation enterprises is facing the pressure of slow growth of power demand, prominent capital contradiction, continuous price increase of coal and inadequate adjustment of electricity price. With the concept of building a resource-saving and environment-friendly society in China, various social charges such as water resources fees and environmental protection fees are increasing year by year, and the survival and development of power generation enterprises are facing severe challenges. The technical and economic analysis method is of great significance to the whole power generation enterprise. Zhejiang Yueqing Power Plant, as a newly-built power plant under Zhejiang Energy Group, is also an important part of Zhejiang power project. Detailed calculation and analysis are needed for the planning of major projects and the purchase of equipment, so as to maximize the benefits while taking into account the future development and surrounding environment. In order to achieve better development, Yueqing Power Plant must rely on accurate and reliable technical and economic analysis methods.

Thirdly, the main content of the paper,

This paper is divided into three parts:

The first part mainly expounds the research background, present situation, purpose and significance of the research.

The second part mainly expounds the basic principles, advantages and disadvantages of technical and economic analysis methods, including break-even analysis, sensitivity analysis and risk analysis, as well as three important system comprehensive methods, namely comprehensive analysis, analytic hierarchy process and fuzzy comprehensive evaluation.

The third part mainly expounds the practical application of appeal concentration, an important technical and economic analysis method, in Zhejiang Yueqing Power Plant.

Finally, I want to talk about some shortcomings of the paper.

First, the problem of collecting materials; Although I have been a tutor in school, my teaching experience in middle school still needs to be improved. So in the process of writing, I only elaborated my superficial understanding from a few questions.

Second, due to the lack of practical research, the summarized strategy is not feasible. The paper does not discuss these problems in depth, and there is still a certain gap with the level expected by the tutor.

The main manifestations are: incomplete investigation and statistics, insufficient number of samples, insufficient rationality and comprehensiveness, and insufficient representativeness in the selection of technical and economic analysis methods.

After writing this paper, I learned a lot of useful things and accumulated a lot of experience. However, due to my lack of knowledge and ability, coupled with limited time and energy, there are some shortcomings in the expression and demonstration of many contents, which are far from the expectations of teachers. Many problems need further thinking and exploration. I would like to take this opportunity to reply and sincerely hope that all teachers can put forward valuable opinions and point out my mistakes and shortcomings, and I will accept them with an open mind.

The above is a brief introduction to my thesis. Please ask your questions. Thank you.

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