Pumped hydroelectric storage is a new type of energy storage and energy storage technology.
Pumped hydroelectric energy storage uses water as an energy storage medium to realize the storage and management of electric energy through the mutual conversion of electrical energy and potential energy. Electrical energy during the low power charging period is used to pump water to the upper reservoir, and then the water is released to the lower tank to generate electricity during the maximum power charging period. It can convert excess electrical energy when the grid load is low into high-value electrical energy during peak grid periods. It is suitable for frequency modulation and phase modulation, stabilizing the frequency and voltage of the power system, and can also improve theefficiency of thermal and nuclear power plants in the system.
Pumped hydroelectric energy storage is the energy storage method with the most mature technology, the best economics and the most conditions for large-scale development. It is green, low carbon, clean and flexible regulated energy. power supply to the electrical system. On December 28, 2008, the first unit of the Shanxi Xilongchi pumped storage power station built by Sinohydro was put into operation. On February 23, 2022, the Shanxi Xilongchi Pumped Storage Power Station, located in Wutai County, Xinzhou City, Shanxi Province, operated in an orderly manner. On the morning of March 17, 2022, the construction of two pumped storage power plants in Jiangxi Fengxin and Zhejiang Taishun began at the same time.
Principle of the pumped storage power plant:
The principle of functionThe operation of a pumped storage power plant is to use electrical energy during the period of low power load to pump. water to the upper tank. Later, the water will be discharged to the hydroelectric plant which produces electricity from the lower reservoir. Pumped storage power plants are the only sources of peak shaving power in the power system capable of filling the valleys. For power systems with large peak-valley differences and insufficient peak shaving capabilities, it is necessary to establish such power plants of a certain scale. The working principle of a pumped storage power plant is to pump water to the upper reservoir using electrical energy during periods of low power load and then release water to the reservoir lower to produce electricityduring peak load periods.
It can convert excess electrical energy when the grid load is low into high-value electrical energy during the grid peak period. It is also suitable for frequency modulation and phase modulation, stabilizing the grid cycle and voltage. the electrical system and is suitable for emergency rescue. It can also improve the efficiency of thermal and nuclear power plants in the system. Also known as a hydroelectric energy storage plant. The construction of pumped-storage power plants in China started late, but due to the delay effect, the starting point is relatively high. The technology of several large pumped-storage power plants built in recent years has reached the world advanced level.
Itinerary: approximately 159.4 km
Starting point: Taishun County
1 Depart fromFrom the starting point due east, drive. along Dongda Street for 230 meters, turn right and enter Taifen Road
2. Continue along Taifen Road for 50 meters, go straight and enter Tongdong Line
3. meters, turn right into Kengdi Road
4. Continue along Kengdi Road for 260 meters, turn left into Wenxiang Avenue
5. Continue along Wenxiang Avenue for 1.1 kilometers, turn left into Xincheng Avenue.
6. Continue along Xincheng Avenue for 3.4 kilometers, direction Fenshuiguan/Wenzhou/S331, turn right and enter S58
7. Continue along S58 for 3.4 kilometers, go straight and enter Yangjialing. Tunnel
8. Along Yangjia Ridge. Travel 3.2 kilometers along Tunnel Ridge and continue straight on S58
9. Continue along the S58 for 1.6 kilometers and continue straight through the San Tunnelcha'ao
10. ao Tunnel for 1.0 kilometers and continue straight on S58
11. Continue along S58 for 40 meters and go straight into Longjingkeng Tunnel
12. Continue along Longjingkeng Tunnel for 390 meters and continue. straight into S58
13. Continue along S58 for 730 meters and go straight through Shanghong Tunnel
14. Continue along the Shanghong Tunnel for 180 meters and continue straight on S58
<. p>15. Continue along the S58 for 2.2 kilometers and continue straight through Hongling Head Tunnel16. Continue along Honglingtou Tunnel for 1.3 kilometers and continue straight onto S58
17. S58 for 9.6 kilometers. After passing Chisha on the right for about 140 meters, continue straight into Tamzhuyang Tunnel
18. Travel 2.4 kilometers along Tamzhuyang Tunnel and continue straightin S58
19. Travel 10.8 kilometers along S58 and continue straight into Xiujian Tunnel
20. Continue along Xiujian Tunnel for 910 meters and continue straight into S58
21. Continue along S58 for 4.3 kilometers and go straight into Feng'ao Tunnel
22. Continue along Feng'ao Tunnel for 1.2 kilometers, continue straight to S58
23. Continue 3.0 kilometers along the S58, go straight to the S58. Fuyang Tunnel
24. Travel 2.5 kilometers along Fuyang Tunnel, go straight to S58
25. Travel 4.3 kilometers along S58 and go straight into Aimenguan Tunnel
27. Continue along S58 for 5.8 kilometers, direction G15/Wenzhou/Fuzhou, turn slightly left onto ramp
28. Follow the ramp sur 970 meters and continue straight into Shenhai Expressway
29. Follow Shenhai Expressway for 74.5km, cross Queli Bridge and head towards Service Area/Wenzhou South/Lishui/. G1513, turn slightly right to enter Nanbaixiang Hub
30. Continue along Nanbaixiang Hub for 1.1 kilometers and continue straight on Wenli Highway
31. Continue along Wenli Highway for 16.6 kilometers. , at Shuangyu/Wenzhou West/G104 exit, turn slightly right into Wenzhou West Interchange
32 along the road for 790 meters along Wenzhou West Interchange, pass the interchange Wenzhou West and turn right into the transit road.
33. Continue along the transit road for 430 meters, pass Wenzhou Shuangyu Supply and Marketing Building on the left, and turn right into Kangsheng Road.
34. Continue along Kangsheng Road. 110 meters and reachedez the end point (on the right side of the road)
End point: Shuangyu Passenger Transportation Center