HIVERT HVAC Special Medium Voltage Drive
Variable Frequency Drive Applications in HVAC Systems
Hiconics's VFD HVACinverters are electrical equipment that work together with medium and large central ACs to achieve energy-saving effects. HVAC converters can reduce the mechanical impact inside the ACs to increase service life, stabilize the operation of the unit, reduce noise, and improve user comfort.
We also care about your experience:
- Online Cloud Service
- High resolution touch screen interface, simple operation
- Intelligente system: Full digital control system a variety of control mode, without harmonic
Different Models of HIVERT Variable Frequency Drive HAVCSpecial Medium Voltage Drive
10kV/315-2000kW Special Medium Voltage Drive
10kV/315-2000kW
Composition of HIVERT HVAC Special Medium Voltage Drive
HVAC General Medium Voltage Drive is composed of 3 main parts:
Composition of HIVERT HVAC Special Medium Voltage Drive
Main Features of HVAC Special Medium Voltage Drive
Phase Locked Loop Technology
The software phase-locked loop technology widely used in the field of new energy is applied to the high-voltage vfd inverterspeed tracking algorithm, and a closed-loop feedback system is adopted to effectively suppress the influence of harmonic disturbance on the phase-locking accuracy. The speed tracking algorithm has built-in modules such as pair limiting, filtering, compensation, and adaptive amplification to achieve accurate, fast, widerange, and speed tracking effects.
Instant Power Loss
When the inverter detects that the grid voltage drops, the inverter reduces the output frequency and runs at a reduced speed. At this time, the motor rotates ahead of time and is in an electric state to charge the grid side. Within the instantaneous power failure time, the inverter runs normally; after the instantaneous power failure time, the power grid will not resume power supply, and it will be treated as a medium voltage power loss.
Medium Power Loss Function
When the grid voltage drops for more than the instantaneous power outage time, the state at this time is called high voltage power outage. The user can choose whether the inverter will report a serious fault when a medium-voltage power outage occurs; and whether the inverter will run automatically when the power is restored.
HVAC Special Medium Voltage Drive Medium Power Loss Function
Speed Tracking Function
When the medium voltage is lost, the compressor of the chiller is reversed instantaneously. When the inverter controls the motor in the rotating state, it is necessary to obtain the actual speed and direction of the motor first, and then switch to normal from the frequency point, amplitude and phase obtained by the speed tracking algorithm. Control the motor state. From the reverse state to zero speed, in the acceleration to the given speed state, the forward and reverse smooth speed tracking effect without impact is realized.
HVAC Special Medium Voltage Drive Medium Speed Tracking
Torque Boost Function
The purpose of torque boost is to compensate the voltage drop consumed by the stator resistance of the motor during low frequency operation, so as to improve the output torque of the motor and solve the problem of difficultyin starting.
Inrush current suppression technology
When the inverter is powered on for the first time, due to the inrush current of the transformer and the charging of the unit capacitor, the RMS value of the instantaneous current can reach 6-7 times of the rated current of the inverter. The excitation inrush current suppression technology can suppress the current below 3-4 times, effectively solving the impact on the power grid when the equipment is closed and powered on.
HMI
High-resolution color touch screen interface, simple and clear, provides users with a friendly human-computer interaction experience, integrated intelligent operation, power grid energy efficiency parameter display, real-time waveform of safety protection, data display, fault guidance 1 parameter setting and other functions, parameters can be one Key download/upload, easy to operate.
HVAC Special Medium Voltage Drive HMI
Intelligent System
Hiconics HVAC special medium-voltage drive integrates all macro control systems, multiple control methods, and perfect harmonic-free solutions. Integrated structure, high energy density, perfect interpretation of small volume and large energy; built-in data monitoring platform, visual monitoring of unit operation and maintenance data; advanced speed tracking algorithm to ensure fast start-up under all working conditions; intelligent whole system logic control strategy, for medium voltage power failure rapid restart escort.
Cloud Monitoring APP
Hiconics HVAC special medium-voltage drive is connected to the Internet server monitoring station wirelessly and wiredly, and sends data to the server in real time. Mobile terminal equipment and monitoring platform can receive server data, analyze operating parameters, perform remote monitoring, determine problems, and diagnose faults. At the same time through the video and voice system to remotely guide the technical engineer on-site operation
Principle of HIVERT HVAC Special Medium Voltage Drive
Hiconics is widely used in heating and ventilation equipment such as buildings and central AC. The central air-conditioning system is composed of the main engine, the chilled water circulation system, and the cooling water circulation part. During use, it cannot be adjusted with the changes of seasons, day and night, and the number of people. The always motor runs at full speed at power frequency. With our HVAC Special medium voltage drive, we could bring great significance for improving the automation level of central air-conditioning, reducing energy consumption, reducing the impact on the power grid, and extending the service life of machinery and pipe networks.
If you want to know more details of vfd in hvac system, please visit our website.
As one of variable frequency drive manufacturers,we will do our best to meet all the needs of customers.
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