| The current international and domestic economic situation and energy situation is undergoing profound changes,energy production and consumption in our country have been ranked among the top of the world,but in terms of energy supply and use of there are a series of problems,such as unreasonable energy structure,energy efficiency is not high,low proportion of renewable energy development and utilization,energy security and utilization level remains to be further improved,and so on.Research of cold and hot electric energy mix joint optimal allocation can be effectively integrated to promote the efficiency of energy utilization for regional power grid to provide good technical support,improve the distributed photovoltaic asked given capacity of renewable energy sources,such as cold hot electric energy mix and matching grid peak valley,promote power supply and demand balance,guarantee the safe operation of the power grid.This paper focuses on the evaluation of the optimal allocation and service mode of the hybrid energy,and the main work and research achievements are as follows1)study of cold and hot electricity timeframe,complementary characteristics of the hybrid energy system for cold and hot electric energy mix in every system consists of photovoltaic power generation,wind power,micro gas turbine,the energy storage device for using the reservoir model and energy conversion model,the coordination of the efforts of cold and hot electric energy mix potential complementary and cold hot electric hybrid energy system research,the characteristics of multiple time scales complementary medium and long-term,short-term and real-time matching scheme under the complementary,validation by an example.2)The layout and distribution of the hybrid energy system under the common application scenarios are studied.In the study of the optimization layout method,the economic type is taken as the optimization objective and the influence factors on the site selection are taken as the constraint conditions to establish the optimization model.In the study of the optimal configuration method,the optimization model was established with economic efficiency and cleanness as the optimization objectives,and the relationship between cold,heat and electricity as the constraint conditions.The optimization calculation of the layout and configuration was carried out according to individual cases.An example is given to verify the proposed model.3)To study the comprehensive evaluation method of the utilization effect of cold,hot and electric mixed energy.First of all,through the analysis of the system characteristics,the energy utilization effect of the hybrid energy system is evaluated from two aspects of economy and environmental protection,the evaluation index is determined,and a reasonable evaluation system is established.Finally,the study is carried out through specific methods to realize the function of energy efficiency evaluation,and the verification is carried out through the case.4)To study and design a service mode for the combined optimization and comprehensive utilization of cold,hot and electric mixed energy.Analyze the advantages and disadvantages of the traditional CHP service mode,and study the improvement measures to promote the large-scale application and development of the service mode of CHP.Modeling and simulation were carried out on the application of hybrid energy of cold,heat and electricity under the two scenarios of energy saving and emission reduction as the goal under normal circumstances and supporting regional power grid operation and peak regulation in emergency situations,and a typical park in Hengqin New Area was taken as an example for verification. |
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