Method for aggregation potential assessment with load participating in demand response

A demand response and load aggregation technology, applied in the power network operating system integration, electric vehicle charging technology, AC network circuit, etc., can solve the problem that the dispatch center is difficult to achieve direct dispatch, difficult to meet the threshold of participating in demand response, and the duration is short, etc. question

Active Publication Date: 2018-01-16
SOUTHEAST UNIV
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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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  • Method for aggregation potential assessment with load participating in demand response
  • Method for aggregation potential assessment with load participating in demand response
  • Method for aggregation potential assessment with load participating 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 present invention discloses a method for aggregation potential assessment with load participating in demand response. The method comprises the following steps: the step 1) providing a user comfortdegree characteristic index to calculate a comfort degree index value of each load based on an input/output physical model of three types of family loads which are an air conditioner, a water heaterand an electric car; the step 2) taking into consideration influences of factors such as load running characteristics, a user comfort degrees, a user trip plan, a demand response rule and the like toestablish a load aggregation response model; and the step 3) employing an equivalent response power of a load colony in this period to represent the aggregation response potential in this period. Themethod provided by the invention can effectively assess the aggregation response capacity of an intelligent load colony so as to fully excavate the response potential of a load when a power grid generates emergency power vacancy and relieve pressure of first and secondary frequency modulation standby of a generator.

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 Applications(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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