Decentralized Optimization Algorithms for Variable Speed Pumps Operation Based on Local Interaction Game

Table 3

Comparison between centralized and decentralized results.

#Working condition	DEDA			EDA
Demand: 1496.9 m^3/h	n(Hz)	Q (m^3/h)	η	n(Hz)	Q (m^3/h)	η
Pump 1; Pump 2; Pump 3; Pump 4	47.00; 0.00; 41.25; 0.00	700.17; 0.00; 796.71; 0.00	0.79; 0.00; 0.85; 0.00	47.00; 0.00; 41.25; 0.00	700.17; 0.00; 796.71; 0.00	0.79; 0.00; 0.85; 0.00
Power/kW	227.4804			227.4804
Difference	0.0169			0.0169
Demand: 2583.4m^3/h	n(Hz)	Q (m^3/h)	η	n(Hz)	Q (m^3/h)	η
Pump 1; Pump 2; Pump 3; Pump 4	48.50; 0.00; 0.00; 48.75	886.98; 0.00; 0.00; 1695.44	0.83; 0.00; 0.00; 0.82	48.50; 0.00; 0.00; 48.75	886.98; 0.00; 0.00; 1695.44	0.83; 0.00; 0.00; 0.82
Power/kW	392.2045			392.2045
Difference	0.9772			0.9772
Demand: 2952.9m^3/h	n(Hz)	Q (m^3/h)	η	n(Hz)	Q (m^3/h)	η
Pump 1; Pump 2; Pump 3; Pump 4	47.25; 49.00; 0.00; 45.00	733.01; 926.41; 0.00; 1292.65	0.80; 0.84; 0; 0.89	48.00; 47.50; 40.00; 45.75	827.24; 745.89; 0.00; 1379.76	0.82; 0.80; 0; 0.88
Power/kW	435.5667			439.1761
Difference	0.8373			0.0181
Demand: 3234.7m^3/h	n(Hz)	Q (m^3/h)	η	n(Hz)	Q (m^3/h)	η
Pump 1; Pump 2; Pump 3; Pump 4	50.00; 47.75; 45.75; 40.00	1054.53; 777.35; 1402.09; 0.00	0.85; 0.81; 0.87; 0.00	48.50; 47.70; 0.00; 47.50	886.98; 777.34; 0.00; 1569.19	0.83; 0.81; 0.00; 0.84
Power/kW	475.8191			485.6048
Difference	0.7344			1.1869
Demand: 3858.3m^3/h	n(Hz)	Q (m^3/h)	η	n(Hz)	Q (m^3/h)	η
Pump 1; Pump 2; Pump 3; Pump 4	47.00; 49.00; 41.25; 46.25	700.17; 926.41; 796.71; 1435.66	0.79; 0.84; 0.85; 0.87	48.50; 50.00; 41.25; 43.75	886.98; 1037.53; 796.71; 1136.63	0.83; 0.85; 0.85; 0.89
Power/kW	572.8274			561.5738
Difference	0.6517			0.4537
Demand: 4901.2 m^3/h	n(Hz)	Q (m^3/h)	η	n(Hz)	Q (m^3/h)	η
Pump 1; Pump 2; Pump 3; Pump 4	49.00; 49.00; 50.00; 46.25	944.62; 926.41; 1831.72; 1435.66	0.84; 0.84; 0.78; 0.87	48.00; 50.00; 46.25; 50.00	827.24; 1037.51; 1456.97; 1815.93	0.82; 0.85; 0.86; 0.79
Power/kW	778.3465			777.4647
Difference	0.4889			1.2384