How to describe the relationship between people that are in the command of a department or business. They have power and they have to have a good relationship with other people/company that are also powerful. This is the plot of this book.
Companies that are very influent in the market connect with other also powerful companies and they create a network based on the power they have. How these connections are called? A relationship based on the power they have.
You appear to be saying that you wrote the sentence yourself. "Power relations" sounds fine to me. The main problem with your sentence is in your use of "gonna," which I'm sure you know is not a word in English.