System to monitor cavitation or pulsation events during a hydraulic fracturing operation

A hydraulic fracturing control assembly to detect cavitation associated with operating one or more hydraulic fracturing units, each of the one or more hydraulic fracturing units including one or more hydraulic fracturing pumps and one or more engines to drive the one or more hydraulic fracturing pumps, the hydraulic fracturing control assembly comprising:

• one or more pump sensors to generate one or more pump signals indicative of one or more of pump discharge pressure, pump suction pressure, pump speed, or pump vibration associated with operation of the one or more hydraulic fracturing units;
• one or more blender sensors to generate one or more blender signals indicative of one or more of a blender flow rate or a blender discharge pressure;
• and
• a controller in communication with one or more of:
• the one or more hydraulic fracturing units,
• the one or more pump sensors, or
• the one or more blender sensors,
• the controller configured to:
• (a) receive one or more of:
• pump signals indicative of one or more of pump discharge pressure, pump suction pressure, pump speed, or pump vibration associated with operation of the one or more of the hydraulic fracturing pumps, or
• blender signals indicative of one or more of the blender flow rate or the blender discharge pressure, and
• (b) (i) associate, via the controller, one or more cavitation values with one or more of the one or more pump signals or the one or more blender signals, (ii) combine the one or more cavitation values to determine a combined cavitation value, (iii) compare the combined cavitation value to a threshold cavitation value, and (iv) when the combined cavitation value equals or exceeds the threshold cavitation value, generate one or more cavitation notification signals indicative of detection of cavitation associated with operation of the one or more hydraulic fracturing pumps.