Control, integration, and modulation systems and methods for regulating hydraulic fracturing systems when combined with a pressure exchange system

A method for optimizing pressure exchange in a pressure exchange system, comprising:

• providing a system comprising a first system, a second system, and a third system, wherein:
• the first system is a pressure exchange system comprising an energy recovery device;
• the second system supplies high-pressure fluid to the first system for the energy recovery device, wherein the high-pressure fluid of the second system is energized by at least one positive displacement pump;
• the third system supplies low-pressure fluid to the first system for the energy recovery device;
• the first system energizes the low-pressure fluid from the third system with the high-pressure fluid from the second system to form a high-pressure fracking fluid;
• and
• the second system delivers the high-pressure fracking fluid from the first system to a well-head receiving system;
• providing a control system;
• inputting a required rate of flow into the control system;
• determining, via the control system, a rate of flow of the high-pressure fluid from the second system;
• determining, via the control system, a rate of flow of the low-pressure fluid from the third system;
• determining, via the control system, an actual rate of flow of the high-pressure fracking fluid at the well-head receiving system;
• adjusting, via the control system, the rate of flow of the high-pressure fluid from the second system to the required rate of flow;
• and
• adjusting, via the control system, the rate of flow of the low-pressure fluid from the third system such that the rate of flow of the low-pressure fluid from the third system is greater than the required rate of flow.