A load regulation method for a station area with an optical storage charging station
A charging station and load technology, applied in electric vehicle charging technology, AC network voltage adjustment, energy reserve, etc., can solve the problem of not considering the operating conditions and voltage requirements of the station area, not fully considering the interests of electric vehicle users, and not considering load regulation. methods, etc., to achieve the effect of taking into account economic and environmental benefits, ensuring the quality of power supply, and increasing demand for electricity
Active Publication Date: 2022-07-29
JIANGSU ELECTRIC POWER CO +7
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Problems solved by technology
Although in most cases the voltage of the medium-voltage bus can be guaranteed to meet the national standard range, this control method is relatively rigid and does not take into account the actual operating conditions and voltage requirements of the station area. large and long
[0004] On the other hand, a few technologies have considered load control methods including distributed photovoltaic, wind power and electric vehicle access, but among them, photovoltaic power generation is mostly connected to the distribution network as a distributed power source independent of charging stations, and it is mostly discussed from communication devices. Does not fully consider the interests of electric vehicle users, and does not consider the load control method for the integration of photovoltaic, energy storage and charging facilities into the station area of the photovoltaic storage charging station
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Embodiment 1
[0178] like figure 2 As shown, it represents a 20KMx20KM road network topology map. There are 7 optical storage and charging stations at locations 3, 9, 12, 19, 21, 24, and 29 respectively. The dispatching system uses the Floyd shortest path method to guide users. Select. like image 3 As shown in the figure, the 7 nodes of the distribution network IEEE33 are connected to the optical storage charging stations respectively. Suppose there are 800 electric vehicle users in the area who need charging services, 400 users accept the scheduling strategy, and the electric vehicle battery capacity Q=30kWh, The constant power charging method is adopted, and the charging rate is the common 2C in the market, namely P c =60kW. The sub-goal weight can be selected according to the actual situation. In this example, λ is taken. 1 =λ 2 =λ 3 = 1 / 3.
[0179] The steps to perform multi-target load regulation on the distribution network of the above-mentioned solar-storage charging station...
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The invention discloses a load control method for a station area including an optical storage charging station. Based on the particle swarm algorithm, a multi-objective model for load regulation and control in the station area is optimized and solved to obtain the optimal charging start time for electric vehicle users and the selected optical storage charging station; The optimal charging start time of electric vehicle users and the selected photovoltaic-storage charging station guide the electric vehicles with charging demand in the distribution network to the selected photovoltaic-storage charging station for charging under the optimal starting charging time. The beneficial effects of the invention are as follows: 1) The load regulation of the station area is carried out in combination with the characteristics of the charging load, which alleviates the influence caused by the access of the optical storage charging station to the distribution network, and effectively ensures the power supply quality of the station area. In addition, the method does not require investment of new equipment, and can effectively reduce the cost of load regulation. 2) Fully consider the load-side responsiveness and satisfaction, and improve the satisfaction while ensuring the user's electricity demand. 3) Taking into account both economic and environmental benefits, it can effectively stabilize the load variance and reduce carbon emissions.
Description
technical field [0001] The invention relates to a load regulation method of a station area including a light-storage charging station, and belongs to the technical field of load regulation of the station area. Background technique [0002] At present, with the continuous expansion of social industrial scale and the higher and higher degree of electrification, the load structure and electricity consumption law of the Taiwan area are also becoming more and more complicated, while the requirements of the user side for power quality are constantly improving. As an environment-friendly means of transportation, electric vehicles have faced development opportunities in recent years. At present, the number of electric vehicles in my country has exceeded 3 million. At the same time, the photovoltaic, energy storage and charging facilities integrated light storage charging stations have taken into account the environment. Benefits and economic benefits, it has been put into operation i...
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IPC IPC(8): H02J3/32H02J3/14
CPCH02J3/322H02J3/144H02J2203/20Y04S30/12Y04S20/222Y04S30/14Y02B70/3225Y02T90/167
Inventor潘琪陈广孟屹华陈良亮王瑞升成海生张卫国杨凤坤周静宋杰顾琳琳李化周材邵军军
OwnerJIANGSU ELECTRIC POWER CO