PARTNER CONTENT: With the worldwide initiative to scale back carbon emissions and obtain carbon neutrality, the power construction is oriented in direction of low carbon, electrical power, and digitalization. At current, with the large-scale deployment of 5G networks and Knowledge Facilities (DCs), the variety of 5G websites will increase exponentially, and the ability consumption of units at community websites and in gear rooms will increase considerably, inflicting a pointy rise in network-wide energy consumption. As an vital a part of the power system, power storage must observe the “low carbon and intelligence” .
Websites, gear rooms, and DCs now have greater necessities for power storage density, power effectivity, and intelligence. Conventional lead-acid batteries, that includes low power density, massive measurement, heavy weight, brief cycle life, low charging and discharging effectivity, and intensive administration and O&M, can not fulfill the community improvement necessities. Subsequently, they’re progressively changed by lithium batteries with greater efficiency. Lithium power storage has develop into a development within the telecommunications business.
The present lithium batteries, nonetheless, are merely composed of a Battery Administration System (BMS) and battery cells. They supply easy features and exert excessive growth prices, and subsequently are utilized in restricted situations.
Drawing on an perception into future community evolution, and leveraging battery know-how, community communications, energy electronics, clever measurement and management, thermal design, AI, massive knowledge, and cloud administration, ZTE has innovatively proposed a “new dual-network structure and new L1-L5 evolution hierarchy” and is selling the rollout of sensible lithium batteries, thereby assembly new service necessities of 5G networks and driving power construction transformation. “By proposing the brand new hierarchy of 5 ranges, we hope to drive the evolution of power storage in direction of intelligence within the telecommunications business,” stated Liu Mingming, ZTE’s Vice President and Common Supervisor of Renewable Vitality Merchandise.
Liu added that telecom power storage is evolving from the earlier “single structure” to the present mainstream “end-to-end structure”, and finally to the “new dual-network structure”.
Determine 1: Evolution of the Telecom Vitality Storage Structure
Within the earlier single-architecture state of affairs, the lithium battery system, as an remoted execution part, primarily supplies the ability backup operate. On this case, the biking efficiency isn’t totally utilized, undermining the asset worth. Resulting from intensive energy backup administration, the ability backup is both redundant or inadequate at completely different websites, resulting in asset waste. The operational standing of the lithium battery system can’t be visualized or recognized, leading to passive responses in O&M.
After evolution to the present mainstream end-to-end structure, a web site power storage info community is established in “lithium battery-power provide/gateway-EMS” mode to remotely monitor the standing of lithium units, set parameters, and detect faults. The improved native BMS and interoperability with the Vitality Administration System (EMS) have taken the intelligence of lithium batteries to a better degree. Though the end-to-end structure facilitates the clever evolution of lithium batteries, it must be additional upgraded as a result of it falls wanting inter-site coordination and scheduling of network-wide power storage, and can’t fulfill the appliance of such applied sciences as massive knowledge and AI help.
On this regard, telecom power storage will inevitably evolve in direction of a brand new dual-network structure.
This structure options an power community and an info community with full-scenario connectivity of the general public energy grid, in addition to the ability technology, energy consumption, and power storage units at community websites, enabling the interconnection between network-wide power storage info and power assets. Based mostly on the mixing of those two networks, an power cloud is established to handle power streams by info streams. The brand new structure is the cornerstone of transformation from passive power storage to energetic power storage and energetic safety, maximizing full-lifecycle worth of power storage. It finally achieves bidirectional circulation of data streams and power streams in network-wide power storage, paving the best way for the longer term complete utility of web site power storage, new power purposes, and zero-carbon community evolution.
To place it merely, the power community shall be related with the data community for extra environment friendly monitoring and administration, enabling clever telecom power storage.
“Based mostly on the three architectures, we’ve got innovatively outlined 5 ranges to attain anticipated self-intelligent telecom power storage, specifically, L1 (passive execution), L2 (assisted self-intelligence), L3 (conditional self-intelligence), L4 (excessive self-intelligence), and L5 (interconnection),” stated Liu.
L1 corresponds to the one structure. At this degree, frequent lithium batteries, appearing as a passive execution part to exchange lead-acid batteries, supply greater efficiency however related features. The lithium batteries are nonetheless dumb units with restricted utility situations. Some distributors nonetheless present L1 merchandise. L2 and L3 correspond to the end-to-end structure. L2 supplies preliminary administration that makes lithium batteries clever. At L2, lithium batteries are able to impartial execution, partial notion, and partial evaluation. With a easy BMS, lithium batteries are related by the ability provide system to the EMS that gives fundamental features like voltage and present steadiness, real-time parameter test, and over-current/over-voltage safety. At present, many distributors are offering L2 merchandise and options. In contrast with L2, L3 is rather more clever. With the introduction of energy conversion and partial decision-making and enhancement of the notion functionality, L3 is able to impartial execution and notion and partial decision-making. It gives extra highly effective features:
- Stronger efficiency, resembling greater power density, tremendous multi-group cascading, and equalized management with greater precision.
- Extra utility situations, resembling clever hybrid use, clever parallel operation, clever peak-load shifting, clever peak-load shaving, and clever boosting.
- Safer and dependable features, resembling SOC/SOH, distant alarm, clever theft prevention, and preventive O&M.
ZTE gives subtle L3 merchandise and options with progressive features that cater for all of the 5G community situations and make the ability system of 5G networks extra clever, maximizing the effectivity of community energy provide and O&M and lowering the Complete Price of Possession (TCO).
L4 makes a giant leap within the self-intelligence degree of telecom power storage. L4 is built-in with new applied sciences resembling AI, massive knowledge, and IoT, and is upgraded from the end-to-end structure to the brand new dual-network structure. L4 makes use of an clever administration mode with three layers, specifically, cloud, EMS, and system, which may be deployed in a stepwise method with the development of the administration degree. L4 represents a shift from partial decision-making to impartial decision-making. With much less human intervention, L4 allows safer operation, extra environment friendly O&M, wider utility, and larger financial advantages. At current, ZTE is specializing in L4, of which the particular features and benefits are mirrored in 4 points:
- Twin-network integration and cloud-network synergy
- Energetic studying and energetic power storage
- Energetic safety and clever cloud upkeep
- Capability administration and asset optimization
L5 is the last word section of clever evolution of power storage within the dual-network structure, reaching full independence in execution, notion, evaluation, decision-making, and intent. With the revolution of power Web applied sciences and new power makes use of, power storage will give full play to its potential (see Determine 2). Particularly, it’s going to help the mixing of a number of power storage strategies, complete power provide optimization, and network-wide AI studying that may consider carbon indicators, and develop the optimum carbon emission technique and the optimum carbon emission outcome by repeatedly improved algorithms, reaching full interconnection between power and data networks, and bidirectional circulation in every community, and permitting prospects to perform their greatest outcomes.
Determine 2 Overview of L5 Interconnection
As identified by Liu, “The brand new L1-L5 hierarchy for clever power storage goals to drive steady improvement and progress of the telecommunications business by technological accumulation and follow. On this manner, we will create larger worth for patrons, and obtain most power sharing, most effective power use, and cleanest power provide, thus embracing a sustainable power future. ZTE stays dedicated to shouldering extra duties regardless of the challenges forward to attain clever evolution of renewable power.”
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