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- Place of Origin: Jinan
- Brand Name: Hoteam
- Model Number: HTSVG
Introduction:
STATCOM (Static Synchronous Compensator, also known as SVG ) represents the most advanced technology in the reactive power compensation field. As an indispensable part of Flexible AC Transmission Systems (FACTS), STATCOM is a shunt device in the power grid and acts as a controllable reactive current source to provide variable reactive power in response to load reactive current instantly and continuously. In the meantime, the function of harmonic filtration can be performed by STATCOM to meet the grid code requirements further. As a result, a STATCOM system, which is capable of providing dynamic reactive power to stabilize the system voltage, PF correction and harmonic mitigation, serves as the ultimate power quality solution in the power grid.
Specifically, Hoteam LV HTSVG uses IGBTs to form a self-commutated converter, which is connected to the power grid via coupling reactors. By adjusting the amplitude and phase angle of output voltage on the AC side of the converter, or just controlling the current on the AC side directly, the circuit can absorb or generate required reactive current to fulfil the purpose of dynamic reactive power compensation.
Functions:
1.Maintaining load side voltage and improving reliability of electrical distribution system.
For load center, heavy load burden without the proper support of large capacity reactive power supply can easily lead to low grid voltage or stability accident like voltage collapse. With the STATCOM’s dynamic reactive power compensation ability, the voltage at the load side and grid stability can be raised effectively.
2.Compensating reactive power, improving power factor, lowering line loss and enhancing energy efficiency
From the point of view of electrical distribution system, large loads like induction motors, arc furnaces, rolling mills and large capacity rectification equipment, require large amount of reactive power during operation. In the meantime, the transformers and line impendence cab also generate reactive power demand. All these factors combined lower the power factor of the system. Hoteam STATCOM improve the power factor of the load by injecting suitable reactive power in the power distribution line.
3.Mitigation of voltage fluctuation and flicker
Voltage fluctuation and flicker are mainly caused by load fluctuation. This is because load fluctuation will result in current fluctuation, which in return causes voltage flicker at the load side. Typical loads causing voltage flicker are arc furnaces, rolling mills and electric locomotives.Hoteam STATCOM can provide dynamic reactive current super fast to mitigate voltage fluctuation and flicker caused by load fluctuation. To date, the most effective solution to voltage fluctuation and flicker is STATCOM.
4.Harmonic compensation
The non-linear loads prevailing in electrical distribution system, such as VFDs, rubber mixers, hoists and arc furnaces,generate large amounts of harmonics. Those harmonics distort voltage and current waveform, increase failure rate of loads and power loss throughout the distribution system, or cause system resonance and related tripping accidents.To solve the harmonic issues, H type HTSVG LV STATCOM can cancel harmonics by injecting reversed-phase harmonic current into grid. The maximum harmonic compensation capacity of H type HTSVG STATCOM is 30% of rated power.
- Place of Origin: Jinan
- Brand Name: Hoteam
- Model Number: HTSVG
General electrical parameters | |
Rated Voltage | 400V/480V/690V/1140V ±15% |
Rated Frequency | 50/60Hz±5% |
Wire System | 3P3W or 3P4W |
Performance Parameters | |
Rated capacity | 30kvar ~ 400kvar per unit |
Var compensation range | 100% of rated capacity, from capacitive to inductive continuously adjustable |
Functions | Power factor correction, flicker mitigation, harmonic mitigation, load balancing |
Response time | Instantaneous response time < 0.1ms Full response time < 10ms |
Inverter topology | Patented interleaved inverter topology for ripple current cancellation |
Overload protection | Automatic limitation of 100% of rated capacity |
Power loss | 3% when at the full load |
Harmonic mitigation performance for the H model of HTSVG STATCOM | |
Harmonic compensation spectrum | 2nd to 50th harmonics |
Harmonic selective compensation | 2nd to 31st harmonics all can be selected individually, 32nd to 50th harmonics can be selected simultaneously |
Compensation capacity | 30% of rated current capacity |
HMI and Communication | |
HMI
Display | 7-inch touch-screen |
Communication Interface | RS-232,RS-485 as standard, WIFI module and GPRS modem available on
request |
Communication Protocol | MODBUS-RTU |
Operation Configuration | |
Maximum
Modules in Parallel | Up
to 10 units |
CT Requirements | 3
CT s required (class 0.5 or better), Secondary
rating: 5A |
CT Location | Supply side or load side |
Cabinet | |
Protection
Class | IP20,
(higher protection classes available on request) |
Material
and Color | 2
mm sheet steel with Aluzink coating, RAL9004 (higher protection classes and
color available on request) |
Environment Requirements | |
Operation Temperature | -10-55℃ |
Storage Temperature | -25-70℃ |
Humidity | Maximum 95% non-condensation |
Altitude | 2000m (higher
operation altitude allowed with derating) |