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

Product Overview

Ang 35kV outdoor static reactive power generator (SVG) ay isang high-performance dynamic reactive power compensation device na itinayo para sa mga 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 mga mahirap na working conditions sa labas. Ang produktong ito 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 tinatamaan ang dynamic harmonic compensation. Sa kombinasyon ng mga core advantages tulad ng perfect craftsmanship, durability and reliability, at "dynamic static combination" compensation, ito ay maaaring mabigyan ng epektibong pagtaas sa transmission capacity ng high-voltage distribution networks, pagsusunod sa pagbawas ng power losses, at pag-stabilize ng grid voltage. Ito ang core compensation solution para sa high-voltage outdoor power systems, malalaking industrial projects, at new energy grid integration.

System structure and working principle

Core structure

• 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 tiyakin ang stable operation ng equipment sa ilalim ng high voltage conditions; Ilan sa mga modelo ay sumusuporta ng 35kV step-down (35T type) design, na nag-aadapt sa iba't ibang grid access requirements.

• Control Core: Nakakabit ng multi chip DSP+FPGA high-performance control system, mabilis na computing speed at mataas na control accuracy, sa pamamagitan ng Ethernet RS485, CAN, at Fiber optic interfaces, nakikipag-ugnayan nang real-time sa iba't ibang power units upang matamo ang status monitoring, instruction issuance, at precise control.

• Auxiliary structure: nakakabit ng 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 tahanan ang mataas at mababang temperatura, mataas na humidity, earthquakes, at Class IV pollution environments, na nag-aadapt sa komplikadong outdoor climate at terrain conditions.

Working principle

• Ang controller ay real-time na naga-monitor 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 analisa ang reactive current components at harmonic interference components na kinakailangan ng power grid. Sa pamamagitan ng paggamit ng PWM pulse width modulation technology upang maayos na kontrolin ang switching timing ng IGBT modules, ginagawa ang reactive power compensation current na synchronized sa grid voltage at phase shifted ng 90 degrees upang maayos na offset ang reactive power na gawa ng load, habang dinynamically sinuppres ang harmonic distortion (THDi<3%). Ang ultimate goal ay ang pag-transmit lamang ng active power sa grid side, na natutugunan ang multiple objectives ng power factor optimization (karaniwang required na ≤ 0.95 overseas), voltage stability, at harmonic control, na nagbibigay ng efficient, safe, at stable operation ng high-voltage distribution networks.

cooling method

• Hanging cooling

• Tubig Cooling

Heat dissipation mode

Mga pangunahing tampok

• High voltage adaptation, large capacity compensation: rated voltage ng 35kV ± 10%, output capacity coverage ng ±0.1Mvar~±200Mvar, sumusuporta ng ultra large capacity reactive power regulation (maximum 84Mvar para sa air-cooled type, maximum 100Mvar para sa water-cooled type), na perfectly nag-aadapt sa compensation needs ng high voltage distribution networks at large loads.

• Dynamic and static combination, precise compensation: response time<5ms, compensation current resolution 0.5A, sumusuporta ng capacitive/inductive automatic continuous smooth adjustment. Ang "dynamic and static combination" compensation method hindi lamang nasasatisfy ang basic compensation ng steady-state loads, kundi mabilis ding tumugon sa voltage flicker na dulot ng impact loads (tulad ng malalaking electric arc furnaces at wind farm fluctuations), na may industry-leading compensation accuracy.

• Stable and reliable, durable outdoors: gumagamit ng dual power supply design, sumusuporta ng seamless backup switching; Redundant design sumasapat sa operational requirements ng N-2, equipped ng multiple protection functions tulad ng unit overvoltage/undervoltage, overcurrent, overheating, at drive failure, na comprehensive na iwasan ang operational risks; IP44 outdoor protection level, maaaring tahanan ang operating temperatures ng -35 ℃ hanggang +40 ℃, humidity ng ≤90%, seismic intensity ng VIII degree, at pollution environment ng IV level. Ang process ay mature at durable, na suitable para sa complex outdoor working conditions.

• Efficient and environmentally friendly, with extremely low energy consumption: system power loss<0.8%, walang additional transformer loss, significant energy-saving effect; Ang harmonic distortion rate THDi ay less than 3%, na nagdudulot ng minimal pollution sa power grid at sumasapat sa environmental protection operation standards para sa high-voltage power grids.

• Flexible expansion, strong adaptability: sumusuporta ng multiple operating modes tulad ng constant reactive power, constant power factor, constant voltage, load compensation, etc; Compatible sa iba't ibang communication protocols tulad ng Modbus RTU, Profibus, IEC61850-103/104, etc; Maaaring matamo ang multi machine parallel networking, multi bus comprehensive compensation, modular design para sa easy expansion sa later stage, at nag-aadapt sa iba't ibang high-voltage power grid architectures.

Technical Specifications

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

Uri ng pagpapalamig na tubig

Note:
1. Ang kapasidad (Mvar) ay 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 espasyo para sa paglalagay ay kailangan na planearyong i-plot nang hiwalay.
3. Ang mga dimension sa itaas ay para lamang sa reference. Ang kompanya ay may karapatan na mag-upgrade at mag-improve ng mga produkto. Ang dimensions ng produkto ay maaaring magbago kahit walang prior notice.

Mga Application scenarios

• Pangmatataas na sistema ng kuryente: 35kV distribution network, mahabaang transmission lines, stable grid voltage, balanced three-phase system, reduced line losses, improved power transmission capacity and supply reliability.

• Malalaking planta ng renewable energy: Malalaking wind farms at photovoltaic power plants ay nagpapabuti sa pag-aalis ng power at voltage fluctuations dahil sa intermittent power generation, pumapatol sa mga pamantayan ng grid connection, at nagpapabuti sa capacity para sa pagkonsumo ng bagong energy.

• Pangmatataas na scenario sa industriya: metallurgy (malalaking electric arc furnaces, induction furnaces), petrochemicals (malalaking compressors, pump equipment), mining (high-voltage hoists), ports (high-voltage cranes), etc., nagbibigay ng kompensasyon para sa reactive power at harmonics ng high-voltage impact loads, nagpapahina ng voltage flicker, at nagse-secure ng matatag na operasyon ng production equipment.

• Elektrikong riles at urban construction: Elektrikong riles traction power supply system (nagreresolba ng negative sequence at reactive power problems), transformation ng urban high-voltage distribution network, high-voltage power supply system para sa malalaking building complex, nagpapabuti ng kalidad at stability ng power supply.

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