The value chain analysis is a crucial concept for business management and comes from Michael Porter, who was the first to describe it in 1985. His book ‘Competitive Advantage: Creating and Sustaining Superior Performance’ became a best-seller, and since that time a Value Chain analysis is vastly performed.
So, if you are about to do it, make sure you know everything about it. Start by getting a general knowledge of what it is. I’d recommend you the following definition. “A value chain is a set of activities that a firm operating in a specific industry performs to deliver a valuable product or service for the market.”
To get more familiar with the Value Chain, I’d suggest you read some researches, like
Regarding value chain analysis of ABB PBS, I have also found one paper that should definitely help you out in your own writing. Check it out. ‘Global Management: analysis of the ABB PBS Joint Venture Operation.’
There are also loads of papers related to your topic, so you can look through and decide whether they are useful or not.