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The paper discusses the performance test of a 350MW unit's optimal denitration efficiency in the context of a new power system based on new energy, highlighting the challenges of peak regulation in Shandong power grid.

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Abstract

With the establishment of the goal of “carbon peaking and carbon neutralization”, a new power system based on new energy is proposed. With the rapid development of ultra-high voltage external power and new energy in Shandong power grid, the difficulty of system peak regulation is increasing. At present, the peak regulation is mainly based on direct regulating thermal power units. The capacity of pumped storage power stations is limited and there are no gas-fired generating units, which also leads to serious shortage of other flexible regulation resources that Shandong power grid can call. In 2022, Shandong Province plans to implement the renewable energy multiplication plan, and it is expected that the installed capacity of new energy will account for 38%. With the large-scale access of new energy, the “double high” characteristics of the power system are highlighted, and the technical characteristics and stability mechanism of the power grid will undergo profound changes. In the new power system with new energy as the main body, the role of thermal power generation has gradually changed from the electric power source to the regulating power source. Under the variable load conditions, find the optimal efficiency conditions and provide necessary data for the optimal denitration efficiency operation.

Key findings

  • The capacity of pumped storage power stations is limited, leading to a shortage of flexible regulation resources.
  • The large-scale access of new energy has highlighted the 'double high' characteristics of the power system, changing its technical characteristics and stability mechanism.
  • Thermal power generation has shifted from being the primary electric power source to a regulating power source in the new power system.

Keywords

Base load power plantRenewable energyElectric power systemPower (physics)Automotive engineeringElectric power

Identifiers

DOI
10.1051/e3sconf/202235802004
Journal
E3S Web of Conferences
Year
2021