LSHVI10 series high voltage Frequency converter
Name Rules:
The LSHV10 series unit-level high voltage Frequency converter is a power unit-level joint structure, which adopts high performance vector control technology, which has the advantages of excellent control performance and high reliability. The system is based on the intelligent controller of high speed ARM, DSP, FPGA, and uses a mature power unit series stacking technique, vector control technology, optimized overlay PWM control technology, has high control accuracy, fast response, low frequency torque Features, it has been widely used in wind turbines, pumps, compressors, belt machines, hoist and other loads.
1, full range speed tracking;
2, LVRT low voltage cross technology, strong voltage disturbance ability, system has AVR (voltage automatic adjustment) function, meeting stringent grid;
3, the instant stop, the user's high pressure bus is powered down in the allowable time (0 ~ 5S), the system does not stop, and the voltage is started to the set value within 0.1 ~ 1s;
4, start Frequency converter in the case of the motor operating state, the system can accurately track the current speed and direction of the motor, and control the voltage that matches the output, realizes the speed of the speed, and reduces the impact on the grid;
5, excellent low frequency control technology, advanced dead district compensation technology, low frequency waveform; optimized low frequency suppression oscillator algorithm, no motor resonance;
6, dual-band brake technology, by superimposing the reverse high frequency component on the output voltage, a powerful braking torque is produced, and the motor deceleration time is greatly reduced, which is suitable for process applications with high load braking requirements;
7, unit bypass technology, class bypass
8, neutral point offset bypass, only bypass failure unit, high voltage output capacity, strong field adaptability, suitable for extreme cases;
9, rich bus interface, provide rich fieldbus protocols and optional cards, convenient to connect with users' DCS systems, to achieve equipment centralized monitoring and management;
10. Data acquisition flexibility, diversified terminal equipment access;
11, reliable and durable, long life, guarantee the spare parts sufficient supply, enjoy worry-free after-sales service;
12. Excellent technology, efficient application, to meet various complicated, high performance requirements.
project | Technical specifications | |
enter | Voltage level | AC 3ph6kv, AC 3ph10kV |
Voltage fluctuation range | 15% ~ + 10% | |
Voltage frequency | 50 / 60Hz; ± 5% | |
Power Factor | ≧ 0.97 (full load) | |
System efficiency | 96% (full load) | |
Current harmonic | ≦ 4% | |
Output | voltage range | 0 ~ rated input voltage |
Frequency Range | 0 ~ 120Hz (can be customized) | |
Current harmonic | ≦ 4% | |
control | way to control | Vector V / F control; no PG Vector Control (SVC); PG Vector Control (VC) |
Speed ratio | 1:50 (vF); 1: 100 (SVC); 1: 200 (VC) | |
Speed control accuracy | ± 1% (VF); ± 0.4% (SVC); ± 0.2% (VC) | |
Torque response time | <200ms (SVC); <100MS (VC) | |
Start torque | 0.5Hz 150% Rated Torque (SVC); 0Hz 180% Rated Torque (VC) | |
Overload | 120%: 120S; 150%: 5S; 200%: Immediate protection | |
Acceleration and deceleration time | 0-3600s (can be customized) | |
user | Switch input | 8-channel digital input (scalable, programmable) |
Switch output | 8 relay output (scalable, programmable) | |
Analog input | 3: Ai1, Ai2: 0 ~ 10V / 0 ~ 20mA; AI3: -10V ~ 10V | |
Analog output | 4: AO1, AO2, AO3, AO4: 0 ~ 10V / 0 ~ 20MA | |
High speed pulse input | 1 Road: Input range: 0 ~ 50kHz | |
High-speed pulse output | 1 Road: Output range: 0 ~ 50kHz | |
protect | System protection | Overcurrent, overvoltage, undervoltage, motor overload, Frequency converter overload, phase loss, overheating, temperature controller fault, access control, communication failure, etc. |
Unit protection | Under pressure, overvoltage, power, overheating, input phase, VCE fault, power failure, communication failure, bypass failure, etc. | |
HMI | touch screen | |
communication method | Support MODBUS protocol (provide standard RS485 interface), PROFIBUS and Ethernet mode optional | |
Installation method | Cabinet installation | |
Protective level | IP30 | |
Noise level | ≤75dB | |
Infibrus line | Dropping, other ways | |
cooling method | Forced air cooling | |
Control power | AC 380V ± 10% | |
MTBF | 50000h | |
Ambient temperature | -5 ° C ~ +40 ° C, 40 ° C or more, the maximum operating temperature is 50 ° C; each liter is 1 ° C, the decrease capacity is 1.5%. Temperature 60 ° C | |
environment humidity | 5% ~ 95%, no condensation | |
Altitude | 1000m or less, more than 1000m demand, 1% per liter of 100m, decrease capacity | |
Storage environment | It should be stored in dust-free, no sun direct, non-flammable or corrosive gases, no oil, no water vapor, and vibration | |
Vibration amplitude | 0.59g below |