Ankerui Industrial Park Enterprise Microgrid Energy Efficiency Management Platform

The energy efficiency management platform for enterprise microgrids in Ankerui Industrial Park has gradually iterated from 1.0 to 3.0, realizing demand management and load management of enterprise microgrids, combined with IoT and big data technology. Acrelems can achieve functions such as power grid monitoring, energy consumption statistics, load forecasting, lighting control, main load monitoring, charging pile operation management, photovoltaic power generation monitoring, energy storage management, and demand response, improving enterprise distribution intelligence and helping enterprises achieve reliable, safe, energy-saving, efficient, and orderly electricity consumption. Acrelems can serve as a subsystem of virtual power plants, promoting the rapid development of virtual power plants.

1. Background

In the context of the "dual carbon" target driving and the accelerated construction of new power systems, traditional energy dispatch models are facing multiple challenges such as the surge of distributed power sources, intensified load fluctuations, and increased difficulty in matching supply and demand. How to break the information silos in the "source network load storage" links and achieve efficient allocation and flexible scheduling of energy resources has become a core issue that urgently needs to be addressed in the current energy industry.

2. Necessity analysis

Currently, in the severe situation of energy shortage and environmental degradation, all energy is in a critical period of transition from traditional fossil energy systems represented by oil and gas to modern energy systems represented by renewable energy. Meanwhile, due to the rapid development of distributed renewable energy, controllable loads, energy storage facilities, and electric vehicles, electricity users will also shift from single consumers to hybrid producers and sellers.

However, power users with integrated production and sales characteristics have the characteristics of geographical dispersion, strong random fluctuations, and weak observability and controllability. How to achieve friendly interaction with the power grid? In this context, the concept of "virtual power plants" has emerged.

3. Overview of Virtual Power Plants

Virtual power plant is a new generation of intelligent control technology and interactive business model that aggregates and optimizes the "source network load" clean and low-carbon development. This technology model can fully utilize distributed resources without the need for grid transformation, achieve multi energy complementarity on the power side and flexible interaction on the load side, provide electricity and auxiliary services to the grid, and provide forward-looking technical solutions for solving the global problem of clean energy consumption and low-carbon energy transformation.

Class A virtual power plant CPS (Cyber Physical Systems) mainly includes commercial and industrial building air conditioning, user side energy storage, and industrial user loads. Real time reduction of these three types of objects and participation in power grid "peak shaving" auxiliary service transactions. B-class virtual power plants mainly include large users, self owned power plants, distributed photovoltaics, and triple power supply. These types of objects are invited to increase or decrease and participate in the "peak shaving and valley filling" auxiliary service transactions of the power grid. Fully leverage the flexible regulatory role of virtual power plants in electricity trading and auxiliary services, encourage and guide the development of virtual power plants through market mechanisms and price signals, alleviate the pressure of power grid peak regulation, promote the consumption of clean energy, and have enormous economic, social, and environmental benefits, making a huge contribution to ensuring the safety of urban power grids and promoting green development of cities.

The virtual power plant platform mainly includes application servers, database servers, front-end collection servers, communication servers, etc. to achieve system operation, and interacts with other business systems through interface servers for data exchange.

In order to optimize regulation, the virtual power plant function is built on the regulation cloud platform, which has functions such as information collection on the user side, real-time monitoring of the operating load of the user's equipment, effective management and comprehensive analysis of the response data of the virtual power plant, and connection with the peak shaving auxiliary service system.

The core function of the virtual power plant cooperative control system is to complete the issuance of peak load notifications with the virtual power plant platform and provide bidding channels for the virtual power plant platform, enhance the power grid peak load regulation capability, and achieve demand side response to flexible loads, alleviating the contradiction between power supply and demand. The target users of this system are the dispatch personnel of the power company.

4.Hardcore Strength: Ankerui Virtual Power Plant Full Scene Operation and Maintenance Planandcore functionality

The whole scene operation and maintenance scheme of Ankeri virtual power plant, relying on the self-developed intelligent terminal, edge computing gateway and cloud platform, opens the whole link of "perception transmission analysis regulation", realizes the aggregation optimization and intelligent scheduling of multi energy resources, and its core functions are full of highlights:

4.1Multi source heterogeneous resource aggregation, breaking information silos

The solution supports seamless integration of various energy units such as photovoltaics, wind power, energy storage, charging piles, and industrial controllable loads, and is compatible with devices of different brands and protocols. Through standardized interface and protocol conversion technology, energy resources scattered in different spaces and types are integrated into a unified management platform, achieving comprehensive collection and real-time monitoring of data from various links such as "source network load storage", making the status of energy assets clear at a glance.

4.2Intelligent algorithms for precise regulation, achieving dynamic balance between supply and demand

Built in load forecasting, power forecasting, and optimization scheduling algorithms, based on massive historical data and real-time operating conditions, accurately predict future load demand and renewable energy output. Based on the peak and valley electricity prices of the power grid, demand response policies, and user energy consumption strategies, an optimal scheduling plan is automatically generated: during peak electricity consumption periods, energy storage discharge and controllable load off peak operation are scheduled to alleviate the pressure on the power grid; During periods of low electricity consumption, guide energy storage charging and distributed power generation to fully load and connect to the grid to improve energy utilization efficiency. At the same time, support participation in the electricity spot market and auxiliary service market transactions to create additional revenue for users.

4.3Full scene operation and maintenance management, dual guarantee of cost reduction and efficiency improvement

Provide customized operation and maintenance strategies for different application scenarios such as industrial parks, commercial complexes, and new energy charging stations. The platform has functions such as equipment failure warning, remote diagnosis, and intelligent inspection, which can monitor the real-time operation status of equipment, detect and push fault information in a timely manner, significantly reduce manual operation and maintenance costs, and improve equipment reliability. In addition, through refined energy consumption analysis and energy efficiency evaluation, we provide users with energy-saving renovation suggestions, helping enterprises achieve a reduction in electricity costs.

4.4 Main functions

（1）Power Monitoring

Real time monitoring of power parameters such as voltage, current, and power of high and low voltage distribution cabinets to achieve telemetry, remote signaling, remote control, and remote adjustment.

Real time monitoring of environmental parameters such as room temperature and humidity, smoke detectors, door magnets, water immersion, and harmful gases in various power distribution systems, and linkage of exhaust systems for harmful gases exceeding standards.

Real time monitoring of the operation of key power supply and distribution equipment, such as transformers, diesel generators UPS、 DC screen, etc.

（2）Energy Consumption Analysis

（3）Electrical safety

Monitor the temperature of each electrical contact and busbar and issue real-time warnings;

Real time monitoring of leakage current in 0.4kV feeder lines, with alarms triggered in case of abnormalities;

Real time monitoring of isolated power status, alerting in case of abnormalities;

（4）Comprehensive billing management

Implement energy prepayment for electricity and water usage within buildings, allowing for payment before energy usage;

Electricity bills can be divided into basic electricity bills, peak and valley electricity bills, power regulation electricity bills, shared electricity bills, etc., and electricity bills should be provided;

Provide energy financial statements

（5）ordered charging

Monitor the real-time status of electric bicycle charging stations and car charging stations, including offline, faulty, charging in progress, idle, etc;

Monitor transformer load and control power of charging stations;

Conduct statistics on the operation of the platform and charging stations, and generate financial statements and operational reports, including user recharge information, charging amount/charging amount/charging time and other charging information, user recharge records, user consumption records, etc.

（6）environmental monitoring

Display the environmental status of the substation (including current temperature and humidity values, water immersion, smoke detection, door opening and closing status, daily temperature curve, daily humidity curve, noise, partial discharge, infrared, SF6 gas monitoring, vibration and dust information, etc.). The temperature curve and humidity curve of the day are curves drawn using the maximum value of multiple temperature and humidity sensors at the same time, indicating the maximum value, minimum value, and average value

（7）Alarm classification and grading

（8）APP notification

Configure important equipment including transformers, electrical cabinets, high-voltage cables, air conditioning units, water pumps, and other equipment information, and configure equipment QR codes;

Process oriented operation and maintenance inspection, automatic task release, tracking of inspection nodes, defect handling follow-up, alarm linkage and elimination, platform and APP notifications;

Regularly generate monthly reports for users, with online editing of content, regular email sending, substation environmental monitoring, data analysis and evaluation, and reference for improvement suggestions.

5. system hardware

6.Effective implementation: Empowering thousands of industries and creating a green future together

At present, the full scene operation and maintenance solution of Ankerui virtual power plant has been successfully applied to multiple industry projects. In a large industrial park, the plan integrates distributed photovoltaic and energy storage systems with controllable industrial loads, achieving a 25% increase in energy self-sufficiency rate and saving over one million yuan in annual electricity costs; At a new energy charging station, intelligent scheduling of energy storage charging and discharging effectively avoids high electricity prices during peak hours, while providing peak shaving services for the power grid and obtaining considerable auxiliary service benefits.

Gathering sand forms a tower, gathering energy forms a net. Ankerui's virtual power plant full scene operation and maintenance solution, driven by technological innovation, follows the path of multi energy aggregation, and uses intelligent regulation as a means, not only brings tangible economic benefits and energy security to users, but also helps the power grid achieve safe and stable operation and clean energy consumption, contributing Ankerui's strength to promoting the construction of new power systems and achieving the "dual carbon" goal!