The Research Of Transmission Congestion With Low Carbon Emissions In Power System

With the expansion of power generation and utilization scale, we can see obvious deficiencies in transmission network capacity. The transmission congestion problem is getting worse in power system. How to correctly and timely respond to ensure the security and stability of power system operation, and reasonable to solve the transmission congestion problem is the focus of the parties. Currently, low-carbon economy is the effective technique to deal with the global warming and the sustainable development of economy. As the industry is discharging the most carbon, the power system must decrease the carbon emission. Therefore, as part of power dispatch, how to reduce the carbon dioxide emissions in transmission congesting is a subject which is worth studying.To solve the problem, this paper based on the conventional congestion mode constrained by the safety and economy, the mode for congestion management considering the low-carbon element of the traditional thermal power plant and the carbon capture power plant is established. The paper calculated the IEEE 14-bus test system showed the effect on reducing the carbon dioxide emissions of this paper’s model. And carried out on the IEEE 30-bus test system which both the traditional thermal power plant and the carbon capture power plant exist. The results indicated that the congestion problem got worse but the carbon dioxide emissions have been dramatically reduced after the carbon capture power plant joined the system. This paper has the modified IEEE 14-bus system as an example to prove the existence of the carbon capture power plant raised the congestion cost of the system and the price of the blocked line.