The so-called hydro-photovoltaic complementary system is a complementary system of hydropower and photovoltaic power generation. Because hydropower and photovoltaic resources are abundant, the complementary characteristics of water and photovoltaic resources can promote the efficient consumption of clean energy. The transient power angle refers to the power system that is subject to large After a disturbance, the ability of each synchronous generator to maintain synchronous operation and transition to a new or return to the original steady-state operation mode usually refers to maintaining the power angle stability of the first and second swings without losing step.

Hydropower resources are generally concentrated in remote areas and are far away from photovoltaic resources. The two will cause transient power angle stability problems due to long-distance power transmission.

"My research idea is to establish the equivalent power angle curve of the water-solar complementary system, and then change the acceleration and deceleration area of ​​the system before and after photovoltaic access. During the research process, I found that the access to photovoltaics worsens the transient stability of the system. Function..." Shen Shengxian talked non-stop for nearly five minutes before asking:

"The above is the water-light coordinated emergency shutdown control method I assumed based on the equal area rule. However, all three methods were found to have problems, resulting in very unstable power in the experiment, but the reason could not be found. The two professors could Can you give me some guidance?"

Most of the people present were a little dizzy after hearing this. As the saying goes, fields are as separate as mountains. Even if they are both majoring in physics, they may not know much about different subdivisions, let alone direct research like Shen Shengxian. I have asked a question about a subject that has been around for a long time.

Director He frowned upon hearing this, fearing that Qin Ke would be embarrassed if he could not answer. He coughed slightly and was about to say that it was not appropriate to raise such a question at such a short time when he heard Qin Ke say: "I probably have an idea." , have you brought detailed experimental data on hand?"

"Yes." Shen Shengxian actually took out dozens of pages of experimental data from his backpack and ran to the podium to hand it to Qin Ke.

After Qin Ke read it for a few minutes under the gaze of countless people, he walked down and handed it back to Shen Shengxian: "Based on your description just now and this experimental data, I judge that there should be a problem with the experimental model you established. Your experimental model is based on the most ideal state, that is, the comprehensive transient characteristic index of the system and the total hydropower photovoltaic power removal amount index to dynamically optimize the shutdown plan, but it ignores that the instantaneous surge value of photovoltaic access will have a temporary impact on the system. It worsens the state stability, so only on pages 17 to 19, there will be data with obvious abnormal fluctuations in power. If you try to optimize the experimental model in this regard, you should find a breakthrough."

Shen Shengxian murmured and repeated a few words, and suddenly shouted with bright eyes: "Yes, why didn't I think of that! Thank you, Professor Qin! You are really amazing!" He shouted excitedly and left directly. Xi ran out of the conference room, apparently to do an experiment.

Qin Ke walked back to the podium, and in the face of countless stunned eyes, he smiled and said: "Okay, next one."
Chapter completed!