EMS Energy Management System - Providing one-stop energy storage solutions

1. Market trends

With the rapid development of my country's new energy industry and the deepening of the energy revolution, energy storage, as a key support for the development of future energy systems, has become a focus of attention from all parties. Energy storage will be a key technology that affects the future energy landscape. It is of great significance to the safe, stable and efficient operation of its access to the energy system, improve the comprehensive utilization efficiency of energy, promote the development of the new energy industry, and promote the strategic transformation of energy. Energy storage has a wide range of applications in the power system, covering all aspects of power generation, transmission, distribution and end users.

The new power system is undergoing a transformation from the traditional "source follows load" mode to the "source-load interaction" mode, which brings new challenges to the stability of the power grid. In this transformation process, the microgrid energy management system (EMS) plays a vital role. Through real-time monitoring and intelligent optimization and scheduling, EMS has significantly improved the utilization efficiency of energy resources such as solar energy, wind energy and energy storage systems. Advanced technical means and intelligent algorithms are used to achieve balanced, stable operation and intelligent management of power grid loads, thereby significantly enhancing the self-sufficiency of microgrids.

2. Customer pain points

2.1 Insufficient monitoring content

The monitoring method is relatively simple and does not fully explore the characteristics of different types of batteries for targeted data collection and status monitoring, resulting in insufficient monitoring content.

2.2 Power station response time is slow

The monitoring architecture is unreasonable and cannot meet the control requirements of different time scales from milliseconds to minutes, resulting in slow response time of the power station and failure to meet the assessment standards.

2.3 Unscientific control measures

The control method is relatively simple, and no optimization algorithm for power regulation and energy management covering the entire life cycle management of energy storage equipment has been formed, resulting in unscientific management and control measures.

2.4 The analysis results are not comprehensive

There is a lack of coordinated management of monitoring data, and no full-process, systematic planning and control of operating data, which makes the analysis results incomplete and the operation and maintenance inspection lack big data support.

3. Acrel- 2000MG energy storage management system Solution

3.1 Overview

Acrel-2000MG, the enterprise microgrid energy management system of Acrel , is specially developed by Acrel based on the requirements of microgrid monitoring system and microgrid energy management system under the new power system, summarizing the advanced research and production experience at home and abroad. This system meets the access of photovoltaic system, wind power generation, energy storage system and charging pile, performs data collection and analysis around the clock, monitors the operation status and health status of photovoltaic, wind power, energy storage system, charging pile and traditional load, and is a management system integrating monitoring system and energy management. On the basis of safety and stability, the system aims at economic optimization operation, promotes the application of renewable energy, improves the stability of power grid operation, and compensates for load fluctuations; effectively realizes demand management on the user side, improves the operation efficiency of power equipment, and reduces power supply costs. It provides a new solution for safe, reliable and economic operation of enterprise microgrid energy management.

3.2 System Functions

( 1) Data presentation

Display the capacity information, revenue, charge and discharge amount of energy storage, and the change curves of voltage, current, and charge and discharge power.

( 2) Real-time monitoring

The energy storage BMS monitors the voltage, current, temperature, SOC and location of out-of-limit cells of battery cells, battery modules and battery clusters, and issues alarms for out-of-limit information, monitors the operation of the AC and DC sides of the energy storage converter, issues charge and discharge instructions, and sets parameter limits.

( 3) Photovoltaic operation monitoring

Monitor the operation of the enterprise's distributed photovoltaic power stations, including inverter operation data, photovoltaic power generation efficiency analysis, power generation and revenue statistics, and photovoltaic power generation power control.

( 4) Power quality monitoring

AcrelEMS energy management platform brings together distributed power sources, energy storage systems, controllable loads, electric vehicles, and power routers through advanced control, metering, communication and other technologies. The platform flexibly adjusts microgrid control strategies based on the latest grid prices, power loads, grid dispatch instructions and other conditions, and sends them to energy storage systems, electric vehicle charging piles, power routers and other systems to ensure efficient and stable operation of enterprise microgrids and provide mobile data services .

3.3 Related supporting hardware

3.4 System Features

( 1) Access to multiple energy equipment: photovoltaic, diesel, fuel, energy storage, wind turbines, charging piles, controllable loads, etc.

( 2) Multiple operation control modes: conventional start and stop, power balance, stable control, grid-connected and off-grid switching, and black start.

( 3) Multiple optimization operation objectives: demand defense control, reverse power control, maximum photovoltaic consumption, peak shaving and valley filling, and optimal carbon emissions.

( 4) Adaptation to multiple application scenarios: distributed photovoltaics, industrial and commercial energy storage, integrated photovoltaic and energy storage, charging and swapping stations, photovoltaic and energy storage, and off-grid photovoltaic and energy storage /diesel.

( 5) Interaction between multiple systems: power grid dispatching and management system, virtual power plant operation and management platform.