기본 정보
Rated Voltage
10/22/27.5/35kv
Rated Frequency
50Hz(±2%)
Active-Power Loss
≤2% of Rated Power
Overload Capacity
Capable of Continuous Operation at 1.1 Times Overl
Cooling Mode
Forced Air Cooling
사양
ISO9001, ISO14001, CE, OHSMS18001
원산지
Guangdong, China (Mainland)
제품 설명
Wanlida Static Synchronous Compensator
Main Functions
Improve the stability of power transmission
In long distance transmission system, Static synchronous compensator (STATCOM) can not only compensate the power line losses caused byreactive power, increase line voltage and improve effective transmission capacity under normal operation,but also offer reactive power adjustment in time, damp system oscillation and improve system stability incase of fault.
Maintain the receiving-end voltage level
Since high capacity load centers lack reactive power support, it is easy to cause grid voltage dip, evencause voltage collapse. However, Static synchronous compensator (STATCOM) is capable of fast var adjustment. Therefore, the receiving-endvoltage level is greatly stabilized.
Reactive power compensation leading to high power factor and low line losses
Many types of loads need a mass of reactive power when operation, such as asynchronous motors, arcfurnaces, rolling mills and high rating rectifiers. At the same time, the upstream transformer and lineimpedance also generate reactive power, which still leading to low power factor.
For the power system, loads with lower power factor will increase the line losses, voltage drop anddeterioratevoltage quality. Additionally, reactive power will reduce efficiency of power generation,transmission and distribution. For clients, low power factor will increase production costs.
Restrain voltage fluctuation and flicker.
Voltage fluctuation and flicker are mainly caused by rapid loads variation. This rapid variation also causesthe load current fluctuation dramatically. The current variation leads to system voltage losses changingvery fast, which brings the receiving-end grid voltage flicker. The typical loads that cause voltage flicker arearc furnaces, rolling mills, electric locomotives, etc.
Static synchronous compensator (STATCOM/SVG) can offer fast reactive power regulation, which mitigate voltage fluctuation and flicker easily caused byloads variation.
Now, Static synchronous compensator (STATCOM/SVG) is the best solution to restrain voltage fluctuation and flicker compared with MCR, TCR etc.
Mitigate 3-phase unbalance.
In distribution network, there are a lot of 3-phase unbalance loads, typically like electric locomotives and arcfurnaces. At the same time, line and transformer impedance unbalances can also cause voltage unbalanceproblem. Static synchronous compensator (STATCOM) can fast compensate negative sequence current caused by unbalance loads, which ensurebalanced 3-phase grid current. Thus, it improves the power supply quality greatly.
Eliminate harmonics including Even-order, Odd-order, subharmonic and inter-harmonics(Option)
Static synchronous compensator (STATCOM/SVG) has very good harmonic suppression functions including even-order harmonic, odd-order harmonic, subharmonic and inter-harmonics, it adopted Instantaneous power theory to detect and calculate harmonic current automatically and then control PWM converter, and input compensated current into power grid which is of the right magnitude with harmonic current, but with inverse polarity.
Structure of Wanlida Static Synchronous Compensator
It mainly consists of reactor, start-up cabinet, cascade multilevel inverters cabinet and control cabinet.
Technical Advantages
Static Synchronous Compensator has the following advantages compared with traditional compensation methods:
Faster response speed
STATCOM response time: ≤5ms
Traditional static compensator response time: ≥10ms.
STATCOM can finish the conversion from rated capacitance var to rated inductance var in a very short time. This unexampled response speed makes STATCOM very suitable for impact load compensation.
Stronger voltage flicker restrain capability
SVC can restrain voltage flicker to 2:1 in maximum, but STATCOM can achieve 5:1, even higher. SVC cannot improve its capability for voltage flicker mitigation even with high capacity because of low response speed. But STATCOM responds fast. When its
capacity is increased, the capability of voltage flicker mitigation can be further improved.
Wide operation range
STATCOM can work from rated inductive power to rated capacitive power. So compared with SVC, STATCOM operation range is much wider. Furthermore, STATCOM can output rated reactive current even under low system voltage.
Multiple compensation function
STATCOM is not only functioned as fast reactive power compensator, but also harmonics and unbalance compensator according
to different demands of different clients.
Low harmonic content
STATCOM utilizes PWM, 3-level and multiple technologies. Therefore, it generates very low harmonics with compensating load
harmonics at the same time. Thus, STATCOM becomes a true multifunctional compensator.
Small volume
HV big capacitors and reactors are not necessary. STATCOM installation area is greatly smaller than that of the same capacity SVC, only 50% or even lower.
At the same time, Wanlida cooperates with the No.1 Science university in China---Tsinghua University to develop SVG, but the most important advantage for Wanlida is that we have many years experiences for Medium voltage variable frequency drives technology, because the Static Var Generator has almost structure and technology with Medium voltage variable frequency drives, in addition, Wanlida has over 21 years experiences for protection relays for reactor, capacitor etc.
Technical Features
Provides fast smooth dynamic compensation from inductive to capacitive in reactive power, also eradicates reactive power delivery to power grid, it can meet the maximum request to compensate power factor and keep power factor close to 1.0 anytime.
Low power loss, more better economical operation.
Has powerful capability to support voltage and ability to continuously operate under the 1.1 times of overload.
More fast response time and better effect for restraining flicker.
Produce no harmonic and and compensate nearly all load harmonics without amplifying them and without generating harmonic resonance, it has more safety, stability and reliability because it is not sensitive to the system power parameters.
Modular design. All power units are the same in structure and electric performance,thus they are interchangeable, which is easy for installation and maintenance. Redundant N+1 structure provides more higher reliability.
Less space for installation.
Technical Specifications
Rated voltage | 6kV/10kV/22kV/27.5kV/35kV |
Rated Frequency | 50Hz (±2%) |
Rated reactive output | Capable of continuous output that ranges from inductive rated reactive to capacitive rated reactive |
Connection mode | 3phase3wires Star connection |
Response Time | ≤5ms |
Active-power loss | ≤2% of rated power |
Overload capacity | Capable of continuous operation at 1.1 times overload |
Harmonic characteristics | When it only compensates reactive power output, THDU <3%, THDI <4%; harmonic suppression rate when harmonic wave harnessing >85% |
Allowable unequalization degree of voltage | The permissible value of unbalance degree of connection-point system voltage shall not exceed 60% |
Operation indication | Touch screen, full-digitalized control |
Protection function | Power grid overvoltage, undervoltage, voltage imbalance; overload, inverter over/undervoltage, overcurrent , overtemperature; capable of automatic exiting from the power grid in case of a equipment failure |
Communication modes | Ethernet; capable of background-computer remote monitoring; reserved with RS485/232 interface |
Cooling system | Forced air cooling |
주소:
Room 602, No. 117, Cu Sha Huan Lu, Hengqin, Zhuhai, Guangdong, China
사업 유형:
제조사/공장, 무역 회사
사업 범위:
공업 설비와 부품, 안전과 방호, 야금광산물과 에너지, 전기전자
경영시스템 인증:
ISO 9001, ISO 14001, OHSAS/ OHSMS 18001
회사소개:
Zhuhai Pacon Electric Co., Ltd.는 모터 드라이브 및 전력 품질 보정 장비에 대한 전문 원스톱 솔루션 공급업체입니다. 당사는 주로 중전압 및 저전압 가변 주파수 드라이브, 내광 사용 내화성 및 본질적으로 안전한 드라이브, 중전압 자기 제어 반응기로 형식화된 소프트 스타터, 중전압 및 저전압 정적 동기식 보정기(STATCOM), 능동 고조파 필터 등. 수년 간의 수출 경험을 바탕으로 당사는 방글라데시, 파키스탄, 베트남, 이란, 터키, 폴란드, 러시아, 몽골 등 지금까지 우리의 제품은 동남 아시아, 동유럽, 중동, 아프리카에 걸쳐 약 20개 국가와 지역을 포괄하고 있습니다.
Pacon Electric은 "고객 우선" 원칙을 따르고, 판매 전 및 판매 후 기술 지원 서비스에 초점을 맞추며, 고객이 생산 효율성을 개선하고, 에너지 소비를 절감하며, 사회적 책임을 다하도록 돕기 위해 어떠한 노력도 하지 않을 것입니다.