A Multi-Source Coordinated Optimal Operation Model Considering the Risk of Nuclear Power Peak Shaving and Wind Power Consumption

Abstract

In view of the development trend of nuclear power and offshore wind power in China's coastal areas, as well as the current situation of peak shaving pressure brought by reverse peak shaving of wind power to the power grid. In this paper, according to the number of failures and power loss per year in each region, the risk of peak load regulation is calculated comprehensively and quantitatively, and the risk cost increment of nuclear power peak shaving is calculated and evaluated. Optimize and linearize the constraints, and the relatively complete constraint conditions are established. Thus, the traditional peak shaving model of fixed gear nuclear power dispatch is improved，and the peak shaving depth is continuous within the safety regulation range of nuclear power. Then，based on the peak shaving operation model of nuclear power safety constraints, considering the nuclear power risk and wind power consumption, taking into account the operation cost, risk cost, environmental cost and safe operation constraints of various types of power supply, a multi-source optimal scheduling model of wind-nuclear-thermal-storage-gas is established. Based on the calculation example of the actual regional power grid, the security, low carbon and economy of the model are analyzed, and the sensitivity analysis of the risk cost coefficient and wind power reserve coefficient in the dispatching model is carried out. It can be concluded that the nuclear power has a little safety impact on the reactor core and coolant circulation system after participating in the peak shaving operation, and the increase in the probability of man-made misoperation is not obvious. The main source of the risk cost increase is the benefit loss of selling electricity, so that it can properly participate in the peak shaving of the system. When the nuclear safety risk is low and the risk of wind abandonment is high, the nuclear power peak shaving has a stronger economic advantage. The dynamic optimal allocation of wind power reserve capacity can further reduce the abandonment of nuclear power and improve the operation economy of the system. INDEX TERMS economic dispatch, linear adjustment, nuclear power peak shaving, nuclear safety risk, security constraint, wind power consumption.

Optimal dispatch of low-carbon integrated energy system considering nuclear heating and carbon trading

“…The NP units adopt the operational mode of replacing nuclear fuel in a fixed cycle; therefore, reducing the power during the operation cycle causes the waste of nuclear fuel and increases the cost of spent fuel processing (Zhao et al, 2020). In addition, the power regulation of nuclear reactors can lead to a substantial increase in electricity consumption within a power plant.…”

Bulletin of the Polish Academy of Sciences: Technical Sciences

“…The data control area's optimal scheduling is achieved, including store operations, to achieve congestion relief. The distributed approach retains the responsibility of the control area [18][19][20][21]. moth flame optimization (MFO) is one of the latest optimization algorithms used for hydraulic, thermal, and natural gas hybrid power generating sets; in this article, it is used to find PID controllers' best parameters for AGC system [22][23][24].…”

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“…The urban distribution network that is inactive generally has limited ability to regulate power flow, which results in the problem of a large difference between the daily peak and valley of the net load (Uddin et al, 2018). On the other hand, the traditional energy storage has relatively small storage capacity with a high investment cost, and hence, it is difficult to store energy effectively on a large scale and for a long time (Zhao et al, 2020). Considering the fact that the traditional urban distribution network cannot fully meet the electricity demand of new-type loads such as EVs and HVs, the development of day-ahead cooptimization of multi-energy systems is of considerable interest.…”