Extension Hierarchy Analytical Method for Low-Carbon and High-Efficiency Operation of Distribution Grids With Renewable Energy

doi:10.11985/2018.02.003

Abstract

Abstract:

In the paper, the comprehensive evaluation index system of distribution grid is established with renewable energy on the basis of comprehensive evaluation on traditional distribution grid. This index system can make evaluation on distribution grid more comprehensively from equipment operational condition, power distribution reliability, power quality, economical efficiency and environmental protection property, highlighting the characteristics of distribution grid with renewable energy different from the traditional distribution network. The comprehensive evaluation method based on extensional analytic hierarchy process is also put forward. Considering vagueness in human judgment based on traditional analytic hierarchy process, this method is easier to meet the requirement for consistency in judgment matrix. At last, the comprehensiveness of index system and adaptability of evaluation method are verified through analysis of examples.

Key words: Distribution grid with renewable energy, low-carbon and high-efficiency operation, extension hierarchy analytical method

CLC Number:

TM315

Haoran Yan,Jiekang Wu,Hanting Yan,Xiangdong Liu. Extension Hierarchy Analytical Method for Low-Carbon and High-Efficiency Operation of Distribution Grids With Renewable Energy[J]. Journal of Electrical Engineering, 2018, 13(2): 12-23.

Figures/Tables 6

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准则层	指标名	A片区	B片区	C片区	D片区	E片区
设备运行状态	设备运行年限	66.4	71.3	56.8	80.4	78.5
	设备维护水平	79.6	69.8	70.8	70.2	65.5
	设备无故障率	60.2	80.6	58.9	89.5	85.6
	设备过载率	86.8	76.8	88.3	72.5	77.1
供电可靠性	供电可靠率	87.7	85.5	88.6	90.8	86.4
	用户平均停电时间	86.7	91.4	84.5	85.7	89.1
	用户平均停电次数	88.5	84.9	82.7	90.7	88.2
	负荷转移能力	75.6	73.8	69.1	80.6	63.4
	线路非满载率	90.5	87.6	89.5	85.3	84.7
电能质量	电压偏差	88.5	82.3	90.6	78.9	85.7
	频率偏差	89.4	94.5	96.7	86.1	79.8
	电网谐波	85.6	90.5	94.5	89.7	86.9
	三相不平衡度	90.4	91.6	95.7	94.1	89.4
	电压波动与闪变	86.7	89.5	94.3	95.7	87.8
经济性	线损率	86.9	91.6	87.4	89.7	90.6
	单位资产供电量	86.4	89.3	87.5	84.1	89.4
	投入产出比	88.4	88.6	90.6	75.9	91.6
环保性	分布式发电并网率	80.9	0	86.7	87.6	85.7
	分布式发电占比	86.4	0	87.3	85.1	89.2
	CO₂减排量	80.8	0	86.1	89.2	87.1
	SO₂减排量	90.3	0	85.6	88.5	84.9
	氮化物减排量	88.7	0	90.4	90.7	90.4

目标层		A₁	A₂	A₃	A₄	A₅
专家组1	A₁	（1,1）	（0.25,0.5）	（0.5,1）	（0.5,0.8）	（0.4,1）
	A₂	（2,4）	（1,1）	（2,3）	（3,4）	（2,3）
	A₃	（1,2）	（2,3）	（1,1）	（1,2）	（0.5,1）
	A₄	（0.5,1）	（0.33,0.25）	（0.5,1）	（1,1）	（0.5,1）
	A₅	（1,2.5）	（0.33,0.5）	（1,2）	（1,2）	（1,1）
专家组2	A₁	（1,1）	（0.25,0.8）	（0.25,0.5）	（0.4,0.7）	（0.7,0.9）
	A₂	（1.25,4）	（1,1）	（1.5,2.5）	（2,3）	（1.5,3.5）
	A₃	（2,4）	（0.4,0.67）	（1,1）	（1,1.5）	（0.8,1）
	A₄	（1.43,2.5）	（0.33,0.5）	（0.67,1）	（1,1）	（0.6,0.8）
	A₅	（1.1,1.4）	（0.29,0.67）	（1,1.25）	（1.25,1.7）	（1,1）

准则层	指标名	单排序	综合权重
设备运行状态（0.104 5）	设备运行年限	0.271 5	0.028 4
	设备维护水平	0.108 8	0.011 4
	设备故障率	0.450 9	0.047
	设备过载率	0.168 8	0.017 6
供电可靠性（0.355 3）	供电可靠率	0.336 8	0.119 7
	用户平均停电时间	0.223 3	0.079 3
	用户平均停电次数	0.198 4	0.070 5
	负荷转移能力	0.122 1	0.043 4
	线路满载率	0.119 5	0.042 5
电能质量（0.237 2）	电压偏差	0.280 5	0.066 5
	频率偏差	0.251 0	0.059 5
	电网谐波	0.169 0	0.040 1
	三相不平衡度	0.197 5	0.046 8
	电压波动与闪变	0.102 0	0.024 2
经济性（0.127 4）	线损率	0.432 2	0.055 1
	单位资产供电量	0.296 7	0.037 8
	投入产出比	0.271 2	0.034 6
环保性（0.175 6）	分布式发电并网率	0.095 2	0.016 7
	分布式发电占比	0.135 7	0.023 8
	CO₂减排量	0.363 6	0.063 8
	SO₂减排量	0.208 4	0.036 6
	氮化物减排量	0.196 2	0.034 5

供电片区	A片区	B片区	C片区	D片区	E片区
设备运行状态	7.150 3	7.960 5	6.74	8.56	8.356
供电可靠性	30.739 5	30.393 7	29.93	31.18	29.97
电能质量	20.966 0	21.177 5	22.32	20.68	20.24
经济性	10.815 8	11.488 3	11.25	10.74	11.54
环保性	14.907 7	0	15.27	15.54	15.33
综合评估值	84.896 1	71.2	85.53	86.73	85.45

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