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Power quality comprehensive control device UPQC

Solve all kinds of power quality problems in distribution network

The distribution network itself has different levels of power quality problems due to nonlinear characteristics of power system, power system failures, and non-linear loads. In addition, automation and intelligence of production and living processes, as well as various sophisticated precision equipment put forward higher requirements for power quality, so unified power quality management has become an urgent problem to be solved in the power supply system. The development of customized power technology offers a way to effectively solve the power quality problem of distribution network. As a kind of power technology device, the power quality comprehensive control device has excellent performance and comprehensive functions, and can be used in solving various power quality problems of the distribution network.

Features

  • The product has multiple systems
    The input or output of KLD-UPQC system can be configured accordingly in different power supply situations to meet the power supply requirements on all occasions.
  • Powerful scalability
    With modular superposition design, the capacity can be increased or decreased to meet different demands for capacity.
  • More powerful voltage distortion and background harmonic control characteristics
    When the grid voltage is severely distorted and contains background harmonics, the KLD-UPQC device can output a standard rated perfect sine wave voltage.
  • Better characteristics on treatment of voltage drop
    The product has function of automatic voltage regulation, input voltage of wide voltage design and output of stable voltage.
  • More perfect harmonic filtering and reactive compensation
    KLD-UPQC has harmonic filtering function, nonlinear load harmonic distortion rate reduced to less than 5%, and function of compensating reactive power, which can reach 0.99 after power factor compensation.
  • Online hot plugging
    Each part of module has realized online hot plug operation, which provides guarantee for product upgrade or maintenance.
  • Product interactivity
    Real-time monitoring can be achieved through communication or network, and assist users in dealing with system crisis quickly and flexibly.

Product Advantages

  • Redundant design, the reliability and continuity of the power supply are not affected, so that the load can run normally and continuously.
  • Three-level inverters used to improve the working efficiency of whole machine, reduce losses and save power.
  • Enable control of voltage sag and swell
  • Enable voltage harmonic distortion control and current harmonic distortion control on power supply systems
  • Reduce line loss, increase transformer output power, improve power factor of power supply system, and stabilize supply voltage.
  • Improve grid efficiency and power quality of power supply systems
  • Improve grid efficiency and power quality of power supply systems
  • DSP intelligent monitoring, high-speed detection and calculation to ensure accurate and effective detection and compensation control
  • Standard modular design is adopted. Power circuit and control circuit are in module or component (plug-in) structure, and same modules can be interchanged. Thus, reliability and maintainability in use are improved.
  • Small and lightweight design, low requirements for space
  • Routine maintenance-free

Switching-in method

The KLD-UPQC is connected between the grid and the load. The maintenance bypass switch is optional. When the system fails, the maintenance machinery bypass is disconnected to check and repair the system.

Technical Parameters

Input
Rated AC input line voltage 208V-480V (other voltage level can be customized)
Input voltage scope -15%-+15%
Grid frequency range 50Hz/60Hz±5Hz
Wiring method Three-phase three-wire/three-phase four-wire
Multi-machine parallel connection Support multi-module parallel
Output
Output frequency 50±0.01Hz or 60±0.01Hz
Power Factor 0.99
Harmonic of voltage ≤3%
Overload capacity 200%
Performance indicators
Maintenance machinery bypass Optional
Rapid response time <100us
Full response time <2.5ms
Noise ≤ 60db (100% load)
Heat dissipation mode Intelligent air cooling
Protection function Short circuit protection, DC bus undervoltage/overvoltage protection, power semiconductor fault protection, overload protection, etc.
Interface module
Display Touch large screen display is adopted.
Communication RS232 or RS422, RS485, SNMP Network card(optional)
Environmental for Use
Ambient temperature -10℃~+50℃
Environmental Humidity Maximum 95%RH (non-condensing)
Storage temperature -25℃~55℃
Altitude <1500m, the power is reduced by 1% for every 100m above 1500m
Protection class IP20 (customizable for higher classes)

Size and Model

KLD-UPQC power quality comprehensive control device selection

KLD-UPQC three-phase three-wire system selection

Commonly Used Model Capacity (KVA) System voltage (V) Type Protection class
KLD-UPQC30-3L-400V 30 400 Comprehensive treatment device NEMA1(IP20)
KLD-UPQC60-3L-400V 60 400 Comprehensive treatment device NEMA1(IP20)
KLD-UPQC100-3L-400V 100 400 Comprehensive treatment device NEMA1(IP20)
KLD-UPQC120-3L-400V 120 400 Comprehensive treatment device NEMA1(IP20)
KLD-UPQC150-3L-400V 150 400 Comprehensive treatment device NEMA1(IP20)
KLD-UPQC300-3L-400V 300 400 Comprehensive treatment device NEMA1(IP20)

KLD-UPQC three-phase four-wire system selection

Commonly Used Model Capacity (KVA) System voltage (V) Type Protection class
KLD-UPQC30-4L-400V 30 400 Comprehensive treatment device NEMA1(IP20)
KLD-UPQC60-4L-400V 60 400 Comprehensive treatment device NEMA1(IP20)
KLD-UPQC100-4L-400V 100 400 Comprehensive treatment device NEMA1(IP20)
KLD-UPQC120-4L-400V 120 400 Comprehensive treatment device NEMA1(IP20)
KLD-UPQC150-4L-400V 150 400 Comprehensive treatment device NEMA1(IP20)
KLD-UPQC300-4L-400V 300 400 Comprehensive treatment device NEMA1(IP20)

Solutions

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