Engine speed and load can change rapidly in marine applications, security vehicles and mobile measurement and testing systems. Sensitive equipment such as radars, sensors, computers and measuring instruments may nevertheless require a highly stable power supply frequency.
The DYNASET PID Digital Frequency Stabilizer is an optional accessory that helps maintain a stable output frequency on HG Hydraulic Generators when engine speed or electrical load changes. It is available for 50 and 60 Hz models up to and including HG 35.
More Stable Frequency in Changing Conditions
The standard FLC frequency controller used in HG Hydraulic Generators is well suited to tools, lighting and other conventional electrical equipment. Applications involving sensitive electronics, however, may have stricter requirements for frequency variation.
The DYNASET PID Digital Frequency Stabilizer measures the frequency produced by the generator and adjusts the hydraulic oil flow to the generator based on the measurement. If the engine speed or electrical load changes, the digital control responds quickly and restores the frequency to its target value.
In tests, the frequency and voltage deviations, as well as the frequency and voltage recovery times, of an HG Hydraulic Generator equipped with the PID Digital Frequency Stabilizer met the ISO 8528-5 G2 class limits under the tested load conditions.
“The FLC frequency controller in the HG Hydraulic Generator responds quickly to load changes and provides a stable frequency for most applications. The PID Digital Frequency Stabilizer has been developed for special applications with stricter requirements for frequency stability and recovery time,” says Tuukka Korhonen, Testing and Productization Supervisor.
Meeting Demanding Marine and Security Requirements
On vessels, engine speed can change rapidly due to waves and different operating conditions. At the same time, radars, sensors, communications equipment and other electrical systems on board must operate reliably in all conditions.
The same need is particularly important in search and rescue (SAR) and security vehicles, as well as in mobile measurement and testing systems. The combination of an HG Hydraulic Generator and the PID Digital Frequency Stabilizer is suitable for equipment such as:
- radars and sensors
- measurement and testing equipment
- computers and data communications equipment
- laboratory instruments
- surveillance and security systems
- battery and equipment chargers.
A Compact Accessory for HG Hydraulic Generators
In previous customer-specific PID solutions, the required functions were implemented using several hydraulic blocks and pipework. The new concept integrates these functions into a single compact add-on block installed alongside the hydraulic drive of the HG Hydraulic Generator.
The simpler design makes the system easier to design and install, while keeping the overall assembly neat and compact. This is Dynaset’s own technology, designed to meet the needs of mobile and demanding applications.
The DYNASET PID Digital Frequency Stabilizer is available for HG Hydraulic Generators up to and including the HG 35 size. It is suitable for both 50 and 60 Hz models.
Find the right frequency control solution
Contact Dynaset’s experts for help selecting the right HG Hydraulic Generator and frequency control solution for your application.