The Energy Storage Step-up Substation integrated with Converter can cover 6kV to 35kV on the high-voltage side, and AC voltages from 0.315kV to 0.69kV on the low-voltage side. The transformer encompasses various models of American, Chinese, and dry-type transformers, with energy efficiency levels executed according to design requirements. The DC side voltage can reach up to 1500, and the standalone maximum capacity of the energy storage boosting inverter is 6.8MW.
Description:
Turnkey Solution
Integrate PV inverter, transformer, and switchgear in one unit, Integral commissioning from the factory, saving time for on-site installation and intermodulation Containerized shell, no need for special spreader, easy transportation and lifting.
Strong Environmental Adaptability
Strong anti-corrosion capability: The containerized shell uses highly weather-resistant steel plates with better corrosion resistance than regular carbon steel.
Thermal insulation: The internal shell is equipped with a heat insulation board, which has good fireproof, heat insulation, and heat preservation effects.
Ventilation and heat dissipation: Specially designed air inlets prevent dust and sand effectively.
High Reliability and Safety
Uses epoxy resin cast dry-type transformers, which are flame-resistant products with no explosion or fire hazards.
Dry-type transformers have passed C2, E2, and F1 tests conducted by the National Transformer Quality Supervision and Inspection Center.
Low Investment, High Returns
Reduce investment by 15% to 20% compared to the conventional "inverter room + photovoltaic box transformer". Reduce the number of installation bases from 2 to 1. Save 50% on installation and commissioning time. Save cables for connection between inverter rooms and photovoltaic box transformers by using copper bars between inverters and transformers， Save two low-voltage switchgear units between inverters and transformers by optimizing structure.
Flexible and Diverse Product Solutions
Designed to fully meet the actual needs of customers and provide them with satisfactory one-stop solutions.
Main Application Scenarios
Scenario One: Energy Storage for Photovoltaic Power Plants
Solution Principle:
Photovoltaic power generation exhibits characteristics such as intermittency, variability, and unpredictability. The large-scale integration of photovoltaics inevitably will increase the difficulty of grid regulation and lead to significant curtailment issues. The addition of energy storage to photovoltaic power stations effectively addresses these challenges by storing surplus electricity that cannot be consumed. This stored energy is then utilized in times of power shortage or peaks, aiming to smooth out the irregularities inherent in renewable energy generation.
Advantages of the Solution:
Mitigates curtailment issues, effectively addressing energy absorption challenges
Enhance the quality of electric power by smoothing out random fluctuations in output
Elevate the precision of power forecasting
Involve energy storage in photovoltaic power plants in auxiliary services, enhancing the output characteristics of the solar facility
Scenario Two: Wind Power Plant Energy Storage Application
Solution Principle
Due to the intermittent and fluctuating nature of wind power, large-scale grid connection can impact the stable operation of the power system, making the power system increase the demand for regulating resources. The introduction of energy storage systems can provide buffering for grid-connected wind power, mitigating output fluctuations and facilitating energy dispatch. It can dynamically absorb and release energy quickly, improving power quality, enhancing the controllability of wind power, and promoting power system stability.
Advantages of the Solution
Alleviate wind curtailment issues and enhance economic benefits
Improve power quality by mitigating random output fluctuations
Augment accuracy in forecasting electrical power
Improve energy storage in wind farms
