35kV Outdoor Static Var Generator (SVG) 35kV Outdoor Static Var Generator (SVG)

Paglalarawan ng Produkto

Ang 35kV outdoor static reactive power generator (SVG) ay isang high-performance dynamic reactive power compensation device na idinisenyo nang espesyal para sa high-voltage distribution networks. Ito ay nakatuon sa mga pangangailangan ng 35kV high-voltage scenarios at gumagamit ng outdoor specific optimized design (protection level IP44) upang makapag-adapt sa komplikadong at mahigpit na kondisyon ng trabaho sa labas. Ang produkto ay gumagamit ng multi chip DSP+FPGA bilang control core, na naglalaman ng instantaneous reactive power theory control technology, FFT fast harmonic calculation technology, at high-power IGBT driving technology. Ito ay direkta na konektado sa 35kV power grid sa pamamagitan ng cascaded power unit, walang kailangan ng karagdagang boosting transformers, at maaaring mabilis at patuloy na magbigay ng capacitive o inductive reactive power, habang tinatamo ang dynamic harmonic compensation. Sa pag-combine ng mga core advantages ng perpektong craftsmanship, durability and reliability, at "dynamic static combination" compensation, ito ay maaaring mabisa na i-boost ang transmission capacity ng high-voltage distribution networks, bawasan ang power losses, at istabilize ang grid voltage. Ito ang core compensation solution para sa high-voltage outdoor power systems, malalaking industrial projects, at new energy grid integration.

Estruktura ng Sistema at Prinsipyo ng Paggawa

Punong Estruktura

• Cascade power unit: gumagamit ng cascade design, na naglalaman ng maraming set ng high-performance IGBT modules, at synergistically withstanding 35kV high voltage sa pamamagitan ng series connection upang matiyak ang stable operation ng equipment sa ilalim ng high voltage conditions; Ang ilang modelo ay sumusuporta sa 35kV step-down (35T type) design, na nag-aadapt sa iba't ibang grid access requirements.

• Control Core: Nakakamit ng multi chip DSP+FPGA high-performance control system, mabilis na computing speed at mataas na control accuracy, sa pamamagitan ng Ethernet RS485, CAN, Fiber optic interfaces communicate in real-time with various power units upang matiyak ang status monitoring, instruction issuance, at precise control.

• Auxiliary structure: kasama ang grid side coupling transformer, na may mga function ng filtering, current limiting, at suppressing current change rate; Ang outdoor dedicated cabinet ay sumusunod sa IP44 protection standard at maaaring matiis ang mataas at mababang temperatura, mataas na humidity, earthquakes, at Class IV pollution environments, na nag-aadapt sa komplikadong outdoor climate at terrain conditions.

Prinsipyo ng Paggawa

• Ang controller ay real-time na nagsusuri ng load current at voltage status ng 35kV power grid, at batay sa instantaneous reactive power theory at FFT fast harmonic calculation technology, agad na nagsasalamin ng reactive current components at harmonic interference components na kinakailangan ng power grid. Sa pamamagitan ng PWM pulse width modulation technology upang ma-accurately control ang switching timing ng IGBT modules, ginagawa ang isang reactive power compensation current na synchronized sa grid voltage at phase shifted by 90 degrees upang ma-accurately offset ang reactive power na gawa ng load, habang dinynamically na sinusuppress ang harmonic distortion (THDi<3%). Ang pinakamahalagang layunin ay upang i-transmit lamang ang active power sa power grid side, na natutugunan ang maraming objectives ng power factor optimization (karaniwang required na ≤ 0.95 overseas), voltage stability, at harmonic control, na sinisiguro ang efficient, safe, at stable operation ng high-voltage distribution networks.

Pamamaraan ng Paggamot ng Init

• Hangin cooling 

• Tubig Cooling

Mode ng Pagtanggal ng Init

Mga Pangunahing Katangian

• High voltage adaptation, large capacity compensation: rated voltage of 35kV ± 10%, output capacity coverage of ±0.1Mvar~±200Mvar, supporting ultra large capacity reactive power regulation (maximum 84Mvar for air-cooled type, maximum 100Mvar for water-cooled type), perfectly adapting to the compensation needs of high voltage distribution networks and large loads.

• Dynamic and static combination, precise compensation: response time<5ms, compensation current resolution 0.5A, supporting capacitive/inductive automatic continuous smooth adjustment. The "dynamic and static combination" compensation method not only meets the basic compensation of steady-state loads, but also quickly responds to voltage flicker caused by impact loads (such as large electric arc furnaces and wind farm fluctuations), with industry-leading compensation accuracy.

• Stable and reliable, durable outdoors: adopting a dual power supply design, supporting seamless backup switching; Redundant design meets the operational requirements of N-2, equipped with multiple protection functions such as unit overvoltage/undervoltage, overcurrent, overheating, and drive failure, comprehensively avoiding operational risks; IP44 outdoor protection level, able to withstand operating temperatures of -35 ℃ to+40 ℃, humidity of ≤90%, seismic intensity of VIII degree, and pollution environment of IV level. The process is mature and durable, suitable for complex outdoor working conditions.

• Efficient and environmentally friendly, with extremely low energy consumption: system power loss<0.8%, no additional transformer loss, significant energy-saving effect; The harmonic distortion rate THDi is less than 3%, which causes minimal pollution to the power grid and meets the environmental protection operation standards for high-voltage power grids.

• Flexible expansion, strong adaptability: supports multiple operating modes such as constant reactive power, constant power factor, constant voltage, load compensation, etc; Compatible with various communication protocols such as Modbus RTU, Profibus, IEC61850-103/104, etc; It can achieve multi machine parallel networking, multi bus comprehensive compensation, modular design for easy expansion in the later stage, and adapt to different high-voltage power grid architectures.

Teknikal na Specifications

Specipikasyon at sukat ng mga produktong outdoor na 35kV
 Uri ng air cooling

Uri ng pagpapalamig na tubig

Tanda:
1. Kapasidad (Mvar) tumutukoy sa rated regulation capacity sa loob ng dynamic regulation range mula sa inductive reactive power hanggang sa capacitive reactive power.
2. Ang air core reactor ang ginagamit para sa kagamitan, at walang cabinet, kaya ang lugar para sa paglalagay ay kailangan ng hiwalay na pagsaplano.
3. Ang mga sukat na nabanggit sa itaas ay para lamang sa sanggunian. Ang kompanya ay may karapatan na i-upgrade at i-improve ang mga produkto. Ang mga sukat ng produkto ay maaaring magbago nang hindi ipinapaalam.

Mga Application scenarios

• High voltage power system: 35kV distribution network, mahabang layong transmission lines, matatag na grid voltage, balanced three-phase system, binawasan ang line losses, at pinahusay ang capacity ng power transmission at supply reliability.

• Malalaking new energy power plants: Malalaking wind farms at photovoltaic power plants nag-alamin sa mga power at voltage fluctuations dahil sa intermittent power generation, sumasaklaw sa mga standard ng grid connection, at pinahusay ang capacity para sa consumption ng new energy.

• Heavy industry high-voltage scenarios: metallurgy (malalaking electric arc furnaces, induction furnaces), petrochemicals (malalaking compressors, pump equipment), mining (high-voltage hoists), ports (high-voltage cranes), atbp., nagbibigay ng kompensasyon para sa reactive power at harmonics ng high-voltage impact loads, suppresyon ng voltage flicker, at sigurado ang matatag na operasyon ng production equipment.

• Electrified railway at urban construction: Electrified railway traction power supply system (pag-solve ng negative sequence at reactive power problems), urban high-voltage distribution network transformation, malalaking building complex high-voltage power supply system, pag-improve ng kalidad at estabilidad ng power supply.

• Iba pang high-voltage load scenarios: reactive power compensation at harmonic control para sa high-voltage asynchronous motors, transformers, thyristor converters, quartz melting furnaces, at iba pang kagamitan, angkop para sa iba't ibang high-voltage outdoor working conditions.