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// Product Advantages
I. Efficient conversion
Intelligent temperature - controlled air - cooling, no derating at 50°C ambient temperature.
Support communications such as Bluetooth, WIFI, and MODBUS.
System insulation monitoring and common - mode interference reduction.
II. Safe and reliable
Intelligent temperature - controlled air - cooling, no derating at 50°C ambient temperature.
Support communications such as Bluetooth, WIFI, and MODBUS.
System insulation monitoring and common - mode interference reduction.
III. Flexible configuration
Intelligent temperature - controlled air - cooling, no derating at 50°C ambient temperature.
Support communications such as Bluetooth, WIFI, and MODBUS.
System insulation monitoring and common - mode interference reduction.
Product model GWZK-100K | GWZK-200K | |
Battery DC side | ||
Rated power | 100kw | 200kw |
DC voltage range | 0-1500Vdc | |
Full-load working voltage range | 1060Vdc-1400Vdc | 1212Vdc-1400Vdc |
Maximum working current | 180A | |
Rated working current | 80A | 150A |
DC buffer function | Equipment | |
Busbar DC side | ||
DC voltage range | 550Vdc-1500Vdc | |
Full-load working voltage range | 1110Vdc-1450Vdc | 1262Vdc-1450Vdc |
Maximum working current | 180A | |
Overload capacity | Long -term operation at 1.1 times the rated value,and 1.2- times overload operation for 1 minute(@45℃ ambient temperature). | |
Maximum efficiency | 0.99 | |
Dimensions(width×height × | 600x750x266mm | |
Weight | ≤75kg | |
Protection level | Ip65 | |
Working ambient temperature | -35℃~60℃ | |
Heat dissipation method | Intelligent air cooling | |
Relative humidity | 0~100%(No condensation) | |
Communication method | WIFI/BLUETOOTH/RS485/CAN/ETHERNET | |
Working altitude | 0-4000m(>3000m Derating) | |
Display | LED/Host Computer/APP | |
Parallel-machine function | Support parallel connection on the busbar side or parallel connection at both ends for capacity expansion,up to 16 units. | |
Reverse-connection protection | Equipment | |
Over -heat protection | Equipment | |
Insulation monitoring | Equipment | |
// The following are the common application scenarios of the Energy Storage Flexible DC Converter:
I. Grid Connection of Renewable Energy Generation
1. Wind Power Generation:
In a wind power plant, the energy storage flexible DC converter can convert the alternating current generated by the wind turbine generator sets into direct current and connect it to the energy storage system, enabling smooth control of the wind power and energy storage. When the wind power output changes due to fluctuations in wind speed, the energy storage system can absorb or release energy, making the output power more stable and improving the reliability of wind power grid connection and the quality of electrical energy.
2. Solar Power Generation:
For solar photovoltaic power generation systems, especially large-scale photovoltaic power plants, the energy storage flexible DC converter can efficiently convert the direct current generated by the photovoltaic cells. In cooperation with the energy storage device, it solves the problems of intermittency and instability of photovoltaic power generation. When the illumination intensity changes, through the adjustment of the energy storage system, it can ensure a stable power output to the power grid and reduce the impact on the power grid.
II. Power Grid Energy Storage
1. Peak Shaving and Valley Filling:
During peak load periods of the power grid, the energy storage flexible DC converter controls the energy storage system to release energy, providing additional power support to the power grid and alleviating the power supply pressure of the grid. During off-peak load periods, the excess electrical energy of the power grid is stored in the energy storage system, achieving optimized allocation of electrical energy and improving the operation efficiency and economy of the power grid.
2. Frequency and Voltage Regulation:
The frequency and voltage of the power grid will fluctuate due to factors such as load changes and power source fluctuations. The energy storage flexible DC converter can quickly respond to the changes in the frequency and voltage of the power grid. By controlling the charging and discharging of the energy storage system, it can precisely adjust the power balance of the power grid, achieve the functions of frequency and voltage regulation, and maintain the stable operation of the power grid.
III. Microgrids
1. Independent Operation:
In remote areas, islands and other places where it is impossible to access the main power grid, microgrids are often used to meet the local electricity demand. As a connection hub between the energy storage system and other power sources and loads in the microgrid, the energy storage flexible DC converter can coordinate the operation of each part to ensure the power supply reliability and stability of the microgrid during independent operation. When the power generation of distributed power sources in the microgrid is insufficient, the energy storage system supplies power to the loads through the energy storage flexible DC converter; when the power generation is excessive, the excess electrical energy is stored.
2. Grid-connected Operation:
When the microgrid operates in grid connection with the main power grid, the energy storage flexible DC converter can play the role of power buffering and regulation. It can flexibly control the charging and discharging of the energy storage system according to the operation status of the microgrid and the main power grid, achieve optimized power distribution between the microgrid and the main power grid, reduce the impact of the microgrid on the main power grid, and at the same time improve the power quality and operation flexibility of the microgrid.
IV. Electric Vehicle Charging
1. Fast Charging Stations:
In electric vehicle fast charging stations, the energy storage flexible DC converter can cooperate with the energy storage system to provide a stable DC power source for the fast charging equipment. When multiple electric vehicles are charging simultaneously, resulting in a large power demand, the energy storage system can supplement the shortage of power supply from the grid, avoiding the impact on the grid due to excessive charging power. At the same time, it can also reduce the damage to the batteries during the fast charging process and extend the battery life.
2. Smart Charging:
Combined with the smart charging management system, the energy storage flexible DC converter can optimize the charging strategy according to the grid load situation and the charging demand of electric vehicles. During off-peak grid load periods, the energy storage system is charged with low-cost electrical energy, and during peak load periods, it charges electric vehicles, achieving the dual purposes of peak shaving and valley filling and reducing the charging cost. In addition, through communication with the vehicles, it can achieve precise control of parameters such as charging power and charging time, improving the safety and efficiency of charging.
V. Industrial Applications
1. Uninterruptible Power Supply (UPS):
For some industrial production processes with extremely high requirements for power supply reliability, such as data centers, semiconductor manufacturing, and precision instrument processing, the energy storage flexible DC converter can serve as the core component of the UPS system. When there is a fault or power outage in the grid, the energy storage flexible DC converter can quickly convert the electrical energy of the energy storage system into alternating current, providing uninterrupted power supply for key equipment, ensuring that the production process is not affected and avoiding huge economic losses caused by power outages.
2. Power Quality Governance:
The production equipment of some industrial enterprises will generate a large number of power quality problems such as harmonics, voltage fluctuations, and flicker, affecting the normal operation of the electrical equipment of their own enterprises and surrounding enterprises. The energy storage flexible DC converter can dynamically compensate and govern the power quality problems in the power grid by controlling the charging and discharging of the energy storage system, improving the power supply quality of industrial enterprises and ensuring the stable operation of production equipment.
// FAQ
Q: What are the advantages of the energy storage flexible DC converter compared with traditional converters?
A: The energy storage flexible DC converter adopts advanced power electronics technology, with higher power conversion efficiency, which can reach more than 98%, and lower losses. It can achieve four-quadrant operation, flexibly control active and reactive power, and has a stronger ability to regulate the power grid. It also has the characteristic of fast response and can complete power regulation within milliseconds, effectively improving the system stability and power quality. These are all difficult for traditional converters to achieve.
Q: Is the energy consumption high during operation?
A: The product adopts an efficient topology structure and an optimized control algorithm, resulting in low operation losses. Under full-load operation, its own energy consumption accounts for only 1% to 2% of the total transmission power. It is more energy-efficient than similar products and can reduce your long-term operation costs.
Q: What is the product’s service life?
A: Under normal use and maintenance conditions, the service life of the core components of the energy storage flexible DC converter can reach 20 years.
// Product Advantages
I. Efficient conversion
Intelligent temperature - controlled air - cooling, no derating at 50°C ambient temperature.
Support communications such as Bluetooth, WIFI, and MODBUS.
System insulation monitoring and common - mode interference reduction.
II. Safe and reliable
Intelligent temperature - controlled air - cooling, no derating at 50°C ambient temperature.
Support communications such as Bluetooth, WIFI, and MODBUS.
System insulation monitoring and common - mode interference reduction.
III. Flexible configuration
Intelligent temperature - controlled air - cooling, no derating at 50°C ambient temperature.
Support communications such as Bluetooth, WIFI, and MODBUS.
System insulation monitoring and common - mode interference reduction.
Product model GWZK-100K | GWZK-200K | |
Battery DC side | ||
Rated power | 100kw | 200kw |
DC voltage range | 0-1500Vdc | |
Full-load working voltage range | 1060Vdc-1400Vdc | 1212Vdc-1400Vdc |
Maximum working current | 180A | |
Rated working current | 80A | 150A |
DC buffer function | Equipment | |
Busbar DC side | ||
DC voltage range | 550Vdc-1500Vdc | |
Full-load working voltage range | 1110Vdc-1450Vdc | 1262Vdc-1450Vdc |
Maximum working current | 180A | |
Overload capacity | Long -term operation at 1.1 times the rated value,and 1.2- times overload operation for 1 minute(@45℃ ambient temperature). | |
Maximum efficiency | 0.99 | |
Dimensions(width×height × | 600x750x266mm | |
Weight | ≤75kg | |
Protection level | Ip65 | |
Working ambient temperature | -35℃~60℃ | |
Heat dissipation method | Intelligent air cooling | |
Relative humidity | 0~100%(No condensation) | |
Communication method | WIFI/BLUETOOTH/RS485/CAN/ETHERNET | |
Working altitude | 0-4000m(>3000m Derating) | |
Display | LED/Host Computer/APP | |
Parallel-machine function | Support parallel connection on the busbar side or parallel connection at both ends for capacity expansion,up to 16 units. | |
Reverse-connection protection | Equipment | |
Over -heat protection | Equipment | |
Insulation monitoring | Equipment | |
// The following are the common application scenarios of the Energy Storage Flexible DC Converter:
I. Grid Connection of Renewable Energy Generation
1. Wind Power Generation:
In a wind power plant, the energy storage flexible DC converter can convert the alternating current generated by the wind turbine generator sets into direct current and connect it to the energy storage system, enabling smooth control of the wind power and energy storage. When the wind power output changes due to fluctuations in wind speed, the energy storage system can absorb or release energy, making the output power more stable and improving the reliability of wind power grid connection and the quality of electrical energy.
2. Solar Power Generation:
For solar photovoltaic power generation systems, especially large-scale photovoltaic power plants, the energy storage flexible DC converter can efficiently convert the direct current generated by the photovoltaic cells. In cooperation with the energy storage device, it solves the problems of intermittency and instability of photovoltaic power generation. When the illumination intensity changes, through the adjustment of the energy storage system, it can ensure a stable power output to the power grid and reduce the impact on the power grid.
II. Power Grid Energy Storage
1. Peak Shaving and Valley Filling:
During peak load periods of the power grid, the energy storage flexible DC converter controls the energy storage system to release energy, providing additional power support to the power grid and alleviating the power supply pressure of the grid. During off-peak load periods, the excess electrical energy of the power grid is stored in the energy storage system, achieving optimized allocation of electrical energy and improving the operation efficiency and economy of the power grid.
2. Frequency and Voltage Regulation:
The frequency and voltage of the power grid will fluctuate due to factors such as load changes and power source fluctuations. The energy storage flexible DC converter can quickly respond to the changes in the frequency and voltage of the power grid. By controlling the charging and discharging of the energy storage system, it can precisely adjust the power balance of the power grid, achieve the functions of frequency and voltage regulation, and maintain the stable operation of the power grid.
III. Microgrids
1. Independent Operation:
In remote areas, islands and other places where it is impossible to access the main power grid, microgrids are often used to meet the local electricity demand. As a connection hub between the energy storage system and other power sources and loads in the microgrid, the energy storage flexible DC converter can coordinate the operation of each part to ensure the power supply reliability and stability of the microgrid during independent operation. When the power generation of distributed power sources in the microgrid is insufficient, the energy storage system supplies power to the loads through the energy storage flexible DC converter; when the power generation is excessive, the excess electrical energy is stored.
2. Grid-connected Operation:
When the microgrid operates in grid connection with the main power grid, the energy storage flexible DC converter can play the role of power buffering and regulation. It can flexibly control the charging and discharging of the energy storage system according to the operation status of the microgrid and the main power grid, achieve optimized power distribution between the microgrid and the main power grid, reduce the impact of the microgrid on the main power grid, and at the same time improve the power quality and operation flexibility of the microgrid.
IV. Electric Vehicle Charging
1. Fast Charging Stations:
In electric vehicle fast charging stations, the energy storage flexible DC converter can cooperate with the energy storage system to provide a stable DC power source for the fast charging equipment. When multiple electric vehicles are charging simultaneously, resulting in a large power demand, the energy storage system can supplement the shortage of power supply from the grid, avoiding the impact on the grid due to excessive charging power. At the same time, it can also reduce the damage to the batteries during the fast charging process and extend the battery life.
2. Smart Charging:
Combined with the smart charging management system, the energy storage flexible DC converter can optimize the charging strategy according to the grid load situation and the charging demand of electric vehicles. During off-peak grid load periods, the energy storage system is charged with low-cost electrical energy, and during peak load periods, it charges electric vehicles, achieving the dual purposes of peak shaving and valley filling and reducing the charging cost. In addition, through communication with the vehicles, it can achieve precise control of parameters such as charging power and charging time, improving the safety and efficiency of charging.
V. Industrial Applications
1. Uninterruptible Power Supply (UPS):
For some industrial production processes with extremely high requirements for power supply reliability, such as data centers, semiconductor manufacturing, and precision instrument processing, the energy storage flexible DC converter can serve as the core component of the UPS system. When there is a fault or power outage in the grid, the energy storage flexible DC converter can quickly convert the electrical energy of the energy storage system into alternating current, providing uninterrupted power supply for key equipment, ensuring that the production process is not affected and avoiding huge economic losses caused by power outages.
2. Power Quality Governance:
The production equipment of some industrial enterprises will generate a large number of power quality problems such as harmonics, voltage fluctuations, and flicker, affecting the normal operation of the electrical equipment of their own enterprises and surrounding enterprises. The energy storage flexible DC converter can dynamically compensate and govern the power quality problems in the power grid by controlling the charging and discharging of the energy storage system, improving the power supply quality of industrial enterprises and ensuring the stable operation of production equipment.
// FAQ
Q: What are the advantages of the energy storage flexible DC converter compared with traditional converters?
A: The energy storage flexible DC converter adopts advanced power electronics technology, with higher power conversion efficiency, which can reach more than 98%, and lower losses. It can achieve four-quadrant operation, flexibly control active and reactive power, and has a stronger ability to regulate the power grid. It also has the characteristic of fast response and can complete power regulation within milliseconds, effectively improving the system stability and power quality. These are all difficult for traditional converters to achieve.
Q: Is the energy consumption high during operation?
A: The product adopts an efficient topology structure and an optimized control algorithm, resulting in low operation losses. Under full-load operation, its own energy consumption accounts for only 1% to 2% of the total transmission power. It is more energy-efficient than similar products and can reduce your long-term operation costs.
Q: What is the product’s service life?
A: Under normal use and maintenance conditions, the service life of the core components of the energy storage flexible DC converter can reach 20 years.
