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An assessment method of aggregate potential for load participation in demand response

A demand response and load technology, applied in power network operating system integration, electric vehicle charging technology, climate sustainability, etc., can solve the problems of difficulty in direct dispatch, short duration, and small response capacity for dispatch centers

Active Publication Date: 2020-06-09
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such loads include smart home loads such as air conditioners, water heaters, and electric vehicles. They are rich in types, large in number, and widely distributed. It is difficult for the dispatch center to achieve direct dispatch. At the same time, the response capacity provided by a single load is small and the duration is short. Meet the threshold for participation in demand response

Method used

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  • An assessment method of aggregate potential for load participation in demand response
  • An assessment method of aggregate potential for load participation in demand response
  • An assessment method of aggregate potential for load participation in demand response

Examples

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Embodiment 1

[0073] First, an intelligent load group is taken as an example to illustrate. Assuming that the load group has 100 air conditioners (rated power 3kW), 100 water heaters (rated power 3kW) and 50 electric vehicles (rated power 4kW), each smart load comfort zone is set to air conditioners (23°C, 29°C) , water heater (40°C, 50°C), electric vehicle (0.75, 0.90), the air conditioner temperature at the initial moment, the water temperature service of the water heater, and the SOC value of the electric vehicle are randomly generated, and the response times are 2 times. According to the aggregation model (see the attached figure 1 ) can get the aggregated power curve of the smart load group participating in the demand response, as shown in the attached figure 2 shown.

[0074] In order to compare the differences in aggregate response potentials of different load groups under different time scales, it is assumed that there are 10 load groups, and the load composition of each group is...

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Abstract

The invention discloses a method for evaluating the aggregation potential of loads participating in demand response. The method includes the following steps: Step 1) Based on the input and output physical models of the three types of household loads of air conditioners, water heaters and electric vehicles, the calculation of household comfort characterization indicators is proposed. The comfort index value of each load; Step 2) Considering the influence of factors such as load operating characteristics, user comfort, user travel plans, and demand response principles, establish a load aggregation response model; The effective response power characterizes the aggregate response potential in this period. This method can effectively evaluate the aggregated response capability of the intelligent load group, so as to fully tap the response potential of the load when there is an emergency power shortage in the power grid, and reduce the pressure on the generator's primary and secondary frequency regulation backup.

Description

technical field [0001] The invention relates to the field of electric power demand response, in particular to a method for evaluating aggregation potential of load participating in demand response. Background technique [0002] In recent years, the intermittent problems of new energy power generation, the further development of large-capacity power transmission technology, and the increasing load demand have increased the probability of grid power shortage, which poses a great threat to the stable operation of grid frequency. Under the existing dispatching mode, when the above-mentioned emergency power shortage occurs, the power grid will increase the supply of generator sets, and in particularly serious cases, emergency load shedding measures will be taken. Although this load emergency control method is fast and effective, it brings many disadvantages to the user's production and residents' life. With the access of intelligent terminal equipment, the development of power c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00H02J3/14
CPCY04S20/222Y04S30/12Y02B70/3225Y02T90/167
Inventor 汤奕陈倩宁佳王琦
Owner SOUTHEAST UNIV
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