Review of Peak-Shaving Problem of Electric Power System with High Proportion of Renewable Energy

doi:10.12204/j.issn.1000-7229.2022.11.011

Abstract

Abstract:

Power supply structure has undergone tremendous changes with the increasing proportion of renewable energy in the power system. The high permeability, randomness and uncertainty of the output of renewable energy cause problems increasingly prominent, such as demand of power system peak-shaving resources on both power supply and load side. Firstly, this paper summarizes temporal and spatial distribution characteristics of renewable energy, and explains the peak-shaving problem of power system with high proportion of renewable energy. Then, the equipment, characteristics and development trend of various peak-shaving energy storage types are summarized. The paper also elaborates the peak-shaving modes of the demand side in the power system, including demand response construction, power market and auxiliary peak-shaving service market, and enhancing power transmission capacity. Finally, the future research prospects of peak-shaving of power system with high proportion of renewable energy are discussed and prospected.

Key words: high proportion of renewable energy, peak-shaving of electric power system, peak-shaving resources, demand side

CLC Number:

TM76

HE Ping, GONG Zhijie, JIN Haoran, DONG Jie, YUN Lei. Review of Peak-Shaving Problem of Electric Power System with High Proportion of Renewable Energy[J]. ELECTRIC POWER CONSTRUCTION, 2022, 43(11): 108-121.

Figures/Tables 10

Table 1 Ranking of provinces with cumulative installed capacity of photovoltaic and wind power in China (top five)

Fig.1 Development considerations and weight of peak-shaving means

Fig.2 Comparative analysis of advantages and disadvantages of energy storage peak-shaving methods

Fig.3 Comparative analysis of advantages and disadvantages of complementary peak-shaving methods of power supply

Fig.4 Current main peak-shaving methods and their weights

Fig.5 Comparative analysis of advantages and disadvantages of demand-side peak-shaving methods

Table 2 Comparison of different peak-shaving technologies

Table 3 Development advantages of various peak-shaving resources

Fig.6 Schematic diagram of peak shaving of power system with high proportion renewable energy

Fig.7 Main peak-shaving means and their weights in the future

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