Journal of Shandong University(Engineering Science) ›› 2020, Vol. 50 ›› Issue (3): 111-116.doi: 10.6040/j.issn.1672-3961.0.2019.592

• Electrical Engineering • Previous Articles     Next Articles

Energy scheduling method of smart home integrated with photovoltaic units based on time-of-use pricing

Zhiyuan PAN1(),Chaonan LIU1,Hongwei LI1,Jing WANG1,Wei WANG2,Jing LIU1,Xin ZHENG1   

  1. 1. State Grid of China Technology College, Jinan 250002, Shandong, China
    2. College of Electromechanical Engineering, Shandong University of Science and Technology, Tai'an 271019, Shandong, China
  • Received:2019-10-09 Online:2020-06-20 Published:2020-06-16

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Abstract:

An energy scheduling method of smart home integrated with photovoltaic (PV) generation units under time-of-use pricing (TOUP) was proposed. Based on TOUP and PV generation output, the mathematical model of day-ahead energy scheduling to obtain maximal gains for smart home was established considering the appliances with adjustable power. The bilateral gains equations of smart home and the grid were incorporated in the proposed model. Based on linear transformation method, the proposed mixed integer programming model was reformulated as a linear programming one, which made it easy to obtain optimal solution. The influence of maximal exchange power and controllable appliances on gains of smart home was also studied. Test results verified the effectiveness and practicability of the proposed model and method.

Key words: energy scheduling of smart home, photovoltaic generation, day-ahead energy scheduling, time-of-use pricing, linear transformation method

CLC Number: 

  • TM732

Fig.1

Schematic diagram of home photovoltaic devices connection"

Table 1

List of electrical appliances"

序号设备名称日消耗/(kW·h)Pre-emptive可调
1冰箱1.3200
2电热炉2.0100
3照明灯(10)1.0000
4洗碗机1.4410
5洗衣机1.9410
6烘干机2.5010
7充电汽车(PHEV)9.9011
8加热器7.1000
9电视机0.8000
10电脑0.7000
11热水器1.5011

Table 2

Photovoltaic output on sunny or cloudy days"

时段/h晴天光伏出力值/(kW·h)阴天光伏出力值/(kW·h)
1-600
70.010.001
80.710.068
91.750.196
102.480.348
113.590.481
123.450.473
133.750.512
143.800.534
153.480.451
163.000.373
172.090.234
181.170.120
190.670.053
200.050.031
21-2400

Table 3

Benefits of the customer"

天气状况CFR/元TOUP/元
晴天10.56212.870
阴天-13.150-10.200

Fig.2

Customer benefits comparison with TOUP and CFR"

Fig.3

The influence of maximum exchange power on the customer benefits on sunny days"

Fig.4

Influence of maximum exchange power on load demand during off-peak hours on sunny days"

Fig.5

The influence of maximum exchange power on customer benefits on cloudy days"

Fig.6

Influence of maximum exchange power on customer benefits during off-peak hours on cloudy days"

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